Look, I am not about experimental design test hacks but I get that it scares people. I can’t lie it scares me too, a little bit. But I’m gonna share a trick that won’t get you off the hook from studying this– because you’ve got to be able to visually interpret this stuff. But, I am going to give you a little something to put on your whiteboard to help make good discriminations on test questions. So here’s the trick: on the whiteboard, write down the five designs and how many IVs and DVs that design tests. Now, since you have a lot on your plate, and I’m a very nice lady, I’m going to give you that info now. Well thank you Dana. You’re welcome folks. Write this down and memorize it for your whiteboard. Reversal: one IV one DV– best for proving stuff. Multiple baseline: one IV, two or more DVs– this is good for showing the generalization effects of an IV. Multi-element: two to four IVs one DV– this is good for functional analysis or to compare the efficacy of different treatments. Changing criterion: one IV one DV– good to see if reinforcement criteria is controlling behavior. Now, use this info to rule out options that don’t meet these criteria in test questions. I hope that helps.

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Verification

Demonstrating that the independent variable alone is responsible for the effect on the dependent variable by removing the independent variable and observing the dependent variable return to baseline levels.

Treatment package

An intervention plan, typically for behavior reduction, with two or more independent variables interacting simultaneously.

Single-subject designs

A type of experimental design in which each subject serves as their own control, and the effects of treatment are compared to the subject’s own baseline data.

Steady state responding

A pattern of stable target behavior responding over a period of time.

Steady state strategy

A deliberate process in experimentation where the dependent variable is repeatedly exposed to the independent variable, controlling for and/or eliminating any extraneous influences on the dependent variable and achieving a…

Replication (in baseline logic)

Demonstrating that reintroducing the independent variable after it was withdrawn produces a return of the dependent variable to levels similar to those observed in previous independent variable Hint: This is…

Prediction (in baseline logic)

The projected result of a presently unknown measurement to be determined in the future, based on the belief that if current conditions persist, so will the pattern of responding, and…

Independent variable

In an experimental design, this is the particular aspect of the environment manipulated to assess its effects on the target behavior.

Functional relation

When changes in the dependent variable are predictably related to the independent variable, demonstrating a clear cause-and-effect relationship between the dependent and independent variable.

Experimental design

The specific arrangement of conditions in a study that are created to compare the relevant relations of the effects of the independent variable’s presence, absence, or different values of the…

Experimental control

When an experiment can reliably demonstrate a causal relationship between an independent variable and a dependent variable by controlling for extraneous variables and ensuring that the independent variable is responsible…

Baseline logic

The essential reasoning of single-subject experimental designs, which consists of prediction, verification, and replication.

Baseline data

The data collected prior to implementing a treatment or intervention, used as a comparison for treatment outcomes and acts as a control condition.

Affirmation of the consequent

Demonstrating that the independent variable controls the dependent variable (behavior) by showing a functional relationship between the independent variable and the dependent variable, evidenced by a change in responding occurring…

Variable time

A time-based schedule of noncontingent reinforcement delivery. It sets an average amount of time between the delivery of noncontingent reinforcers.

Noncontingent reinforcement (NCR)

A contingency independent antecedent intervention during which reinforcers that maintain challenging behavior are delivered on a fixed or variable schedule, thereby abolishing (AO) the motivation for the client to engage…

Fixed time

A time-based schedule of noncontingent reinforcement delivery. It sets a fixed amount of time between the delivery of noncontingent reinforcers.

Let's Break Down a BCBA® Mock Exam Question: Key Elements of Baseline Logic for Multiple Baseline Design (D-3)

PTB co-founder Dana Meller breaks down a BCBA® mock exam question about baseline logic for a multiple baseline design across behaviors. Dana explains the significance of replication in providing more convincing evidence of a functional relationship and how to make scientific justifications using baseline logic in various designs. Refer to BCBA® Task List (5th ed.) Section D-3: Identify the defining features of single-subject experimental designs (e.g., individuals serve as their own controls, repeated measures, prediction, verification, replication).

Experimental Design Terminology ➠ The Baseline Logic Blueprint & the Sum of Its Parts

Join PTB co-founder Dana Meller as she discusses baseline logic in single-subject experimental designs. Dana breaks down the four essential elements of baseline logic and how these elements play a crucial role in demonstrating experimental control and confirming the effectiveness of interventions. Refer to BCBA® Task List (5th ed.) Section D-3: Identify the defining features of single-subject experimental designs (e.g., individuals serve as their own controls, repeated measures, prediction, verification, replication).

Dana Do's: Importance of Experimental Design Fluency

PTB co-founder Dana Meller talks about the importance of being fluent in experimental designs, not just to pass the exam, but to be a good clinician as well. Ref Section D-3: Identify the defining features of single-subject experimental designs (e.g., individuals serve as their own controls, repeated measures, prediction, verification, replication).

Dana Do's: What Do Philosophical Assumptions Got To Do With It?

It often feels like the board is asking candidates to study concepts you may never use in practice. PTB co-founder Dana Meller explains why that's actually inaccurate. The philosophical assumptions underlying the science of behavior analysis is so much more integral than just passing the big exam.

Dana Do's: Attention Multiple BCBA® Retakers (You are Going to Want to Hear This)

The data shows candidates struggle to pass the BCBA® exam on later attempts. PTB co-founder Dana Meller takes a deeper look at the data and offers a strategy for beating the retaker odds.

Dana Do's: The Scientific Goals of Behavior Analysis

PTB co-founder Dana Meller takes on the first portion of the Task List with a quick lesson about section A-1. The secret sauce for understanding the goal of behavior analysis? It all comes down to description, prediction, and control.

Dana Do's: How to Decipher the Many Forms of Validity

It's particularly meaningful to be able to tell validity, social validity, internal and external validity apart. PTB co-founder Dana Meller has some tips to do just that.

Dana Do's: How to Discriminate Dependent vs. Independent Variables If You're Not a Researcher

Not a researcher? How about some help discriminating between dependent and independent variables. PTB co-founder Dana Meller offers a few tips to make that distinction on the BCBA® exam.

Dana Do's: How to Discriminate Between SDs & MOs

PTB co-founder Dana Meller breaks down the distinction between motivating operations (MOs) and discriminative stimulus (SDs). Refer to BCBA® Task List (5th ed.) Sections B-10: Define and provide examples of stimulus control; and B-12: Define and provide examples of motivating operations.

Dana Do's: What Chaining Method to Use When?

The books don't really say much about what chaining methods BCBA's should apply to what behaviors. PTB co-founder Dana Meller breaks it down. Refer to BCBA® Task List (5th ed.) Section G-8: Use chaining.

Dana Do's: What are the Markers of a Good Supervisor?

PTB co-founder Dana Meller identifies the markers of being a good supervisor. BCBA® Task List (5th ed.) Section I-8: Evaluate the effects of supervision (e.g., on client outcomes, on supervisee repertoires).

Dana Do's: Yes, verbs are clues that can help you prep for the BCBA exam

PTB co-founder Dana Meller shares how the verbs used in the Task List can provide you with significant clues for effective studying. By examining task list verbs, you can actually determine the specific type of discrimination required in your studies. Learn how understanding these verbs can guide your preparation and better equip you for success on the big exam.

Dana Do's: How to Get Unstuck When Studying for the BCBA®

PTB co-founder Dana Meller explains how to use Multiple Exemplar training to improve your exam application skills. BCBA® Task List (5th ed.) Section: G-21 Use procedures to promote stimulus and response generalization.

Dana Do's: Response Blocking vs. Extinction

Want an easy way to make the correct discrimination between response blocking and extinction? PTB co-founder Dana Meller borrows from the #starwars universe to help explain. BCBA® Task List (5th ed.) Section: G-16 Use positive and negative punishment (e.g., time-out, response cost, overcorrection).

Dana's Do's: Conditioning Us to Understand Operant and Respondent Conditioning?

PTB co-founder Dana Meller explains how one word can describe two different things. Here's how to practically understand the difference between operant and respondent conditioning. BCBA® Task List (5th ed.) Section B-3: Define and provide examples of respondent and operant conditioning.

Dana Do's: Need a Prompt to Understand Prompting?

PTB co-founder Dana Meller shares a trick for discriminating between response and stimulus prompts. BCBA® Task List (5th ed.) Section G-4: Use stimulus and response prompts and fading (e.g., errorless, most-to-least, least-to-most, prompt delay, stimulus fading)

Dana's Do's: WWSD (What Would #Skinner Do?) on Tax Day?

PTB co-founder Dana Meller illustrates a perfect example of rule-governed behavior centered on our shared and dreaded annual Tax Day obligation. BCBA® Task List (5th ed.) Section B-13: Define and provide examples of rule-governed and contingency-shaped behavior.

Dana Do's: How to Decode the Code

PTB co-founder Dana Meller suggests that memorizing the sections of the BACB® Ethics Code for Behavior Analysts will in fact help you make correct discriminations when prepping for the BCBA® exam.

Dana Do's: 1-Minute Experimental Design Test Hack (you still have to study it though)

PTB co-founder Dana Meller shares a huge secret to help break down experimental design questions. BCBA® Task List (5th ed.) Section D-3: Identify the defining features of single-subject experimental designs.

Dana Do's: Why BCBA® Retaker Odds are Lower

There's a danger of studying only the score report. PTB co-founder Dana Meller offers insight on why it's important to study like a test virgin.

Dana Do's: That Feeling of Freaking Out Over the BCBA® Exam

Everyone feels like they won't pass the BCBA® exam, not just you. PTB co-founder Dana Meller talks about the experiences her students share as they prep for the exam. And surprise surprise, you are not alone in feeling scared, dealing with the pressures of everyday life, and trying to negotiate so many variables. If that's you and you're struggling, the good news is that it's temporary. And the payoff, that is fantastic.

Dana Do's: How to Easily Break Down the 7 Dimensions of ABA

PTB co-founder Dana Meller shares an easy way to break down the 7 dimensions of ABA by using the dimensions to define what it means to be a behavior analyst, which in turn, makes it much easier to discriminate between each dimension. BCBA® Task List (5th ed.) Section A-5: Describe and define the dimensions of applied behavior analysis (Baer, Wolf, & Risley, 1968).

Dana Do's: Imagine the Task List is a Jigsaw Puzzle

PTB cofounder, Dana Meller treats the task list like a puzzle, and so should you. Like a puzzle, all the task list items are interconnected. To be exam ready, you need all the pieces, and every piece needs to be in place.

Dana Do's: Looking at the World Behavior Analytically

Why should you look at the world behavior analytically? Because it will help you build ABA fluency.

Dana Do's: How to Optimize Memorization

PTB Co-founder Dana Meller reinforces the importance of memorization and offers some practical, empirically validated tips for memorizing the task list.

Dana Do's: Get Your M.A.C. Skills Together

PTB co-founder Dana Meller offers a key to building fluency and BCBA® exam readiness. Memorization. Application. Comprehension.

Dana Do's: Dealing with the Frustration of Failing the BCBA® Exam

PTB cofounder Dana Meller offers some unsolicited advice for candidates who have experienced the frustration of failing the BCBA® exam by only a few points.

Dana Do's: Why You're Not Passing the BCBA® Exam

PTB cofounder Dana Meller helps candidates retaking the exam consider a functional approach to defining the obstacles holding them back.

Dana Do's: Short Cuts Don't Work

PTB co-founder Dana Meller talks about avoiding shortcuts in your exam prep. Becoming a BCBA® is not just about passing the Big Exam, it is about taking on a professional identity.

Dana Do's: Programming Common Stimuli

PTB co-founder Dana Meller talks about programming common stimuli and how this method can help students feel more prepared on exam day. Refer to Task List section G-21: Use procedures to promote stimulus and response generalization.

Dana Do's: How to Know When You're Ready to Sit for the BCBA® Exam

PTB co-founder Dana Meller talks about measuring exam readiness. How do you know if you’re ready to sit?

Dana Do's: The Importance of Speaking ABA

PTB co-founder Dana Meller shares the importance of speaking ABA and being able to fluently read and understand the Cooper text in order to pass the big exam.

Dana Do's: Understanding the ABC's of Behavior Used to Break Down Test Questions

PTB co-founder Dana Meller shares how our ABA superpowers can be used to break down exam questions to organize BCBA® exam prep.

Dana Do's: Put On Your BACB® Board Hat

Want to know what to study for the BCBA® exam? PTB co-founder Dana Meller reminds candidates that the exam is a knowledge assessment, not a skill assessment.

Dana Do's: Using Stimulus Salience to Increase Studying Effectiveness

PTB co-founder Dana Meller discusses the ways in which you can increase your studying effectiveness through stimulus salience. We know that ABA works, and Dana reminds students to utilize basic ABA principles to help themselves prepare for the BCBA® exam. Refer to Task List section B-10: Define and provide examples of stimulus control.

Dana Do's: BCBA® Exam Prep Studying Tips

PTB co-founder Dana Meller shares helpful tips about incorporating studying into your already busy lives.

Dana Do's: How to Make Time for Studying for the BCBA® Exam

PTB co-founder Dana Meller shares helpful tips about incorporating studying into your already busy lives.

Dana Do's: The Secret to Test Questions

PTB co-founder Dana Meller shares a surprisingly easy trick to interpret the call-to-action of a mock or actual test question on the BCBA® or BCaBA® exam.

Dana Do's: The Problem With Making Assumptions on the BCBA® Exam

PTB co-founder Dana Meller shares practical insight on the importance of approaching exam questions at face value.

Dana Do's: Use Mistakes to Assess How You Test

PTB co-founder Dana Meller shares insights on how to use your mock BCBA® exam mistakes to assess and improve your test-taking behavior.

Dana Do's: A Trick to Help Dissect BCBA® Exam Questions on Experimental Designs

Experimental design tends to trip lots of people up. Here's an exam trick from Dana Meller that will help you breaking down questions on the exam.

Breaking Down a Mock BCBA® Exam Question: Reversal Design Variations With Only One Reversal

Test your Experimental Design skills with PTB co-founder Dana Meller as she reviews and breaks down a mock exam question about reversal design variations that display only one reversal. Included is a description of A-B-A, B-A-B, and A-B-A-B reversal designs. Refer to BCBA® Task List (5th ed.) Section D-5: Use single-subject experimental designs (e.g., reversal, multiple baseline, multielement, changing criterion).

Dana Do's: What's the Difference Between Continuous and Discontinuous Measurement?

It’s all too easy to mix up continuous and discontinuous measurement procedures. Need some help discriminating between the two? Get clarity with help from PTB founder Dana Meller.

Interobserver agreement (IOA)

A measurement of the degree to which two or more observers report the same values when observing and collecting data for the same behaviors/events.

Dana Do's: Tips for Test Questions About Functional Analysis

Tripped up trying to make correct discriminations when it comes to functional analysis? PTB founder Dana Meller has some tips to help you answer those tricky exam questions.

Dana Do's: Six Direct Assessment Methods

Looking to review direct assessment methods? PTB founder Dana Meller gets right to it with this quick explainer.

Dana Do's: Exploring the Four Types of Reinforcer Assessments

PTB founder Dana Meller discusses reinforcer assessments, which should not be confused with stimulus preference assessments.

Dana Do's: Can Changing Criterion Design be Used to Evaluate Shaping Programs?

Can can a changing criterion design be used to evaluate shaping programs? Well, PTB founder Dana Meller says, it depends.

Dana Do's: Nine Considerations for Prioritizing Target Behaviors

PTB founder breaks down each of the nine considerations for prioritizing target behaviors.

Dana Do's: Why IOA Math Should Not Intimidate You

PTB co-founder takes some of the fear out of the interobserver agreement math with simple tips that can help narrow your discrimination.

10 Positive Effects From Prioritizing Self-Care

Self-care. It’s a bit of a broad term, and a total buzzword these days. It’s often used in the context of bubble baths and “unplugging.” But, at its core, self-care is about more than just “me-time.” It’s about taking care of yourself in a way that works best for you and your lifestyle.

Dana Do's: How to Know if Your Study Activities are Effective

How do you know if your BCBA® study activities are effective? PTB co-founder Dana Meller shares some key analysis that may help BCBA® exam candidates assess efficacy.

Dana Do's: Careful About Getting Creative With Mock Exams

PTB co-founder cautions candidates about using the actual BCBA® exam as a mock exam, listing all the reasons why you might want to reconsider getting creative with your mock exam prep experience.

Dana Do's: Warning. Be Careful of Extremes.

PTB co-founder Dana Meller sends an important warning for test takers. Watch out for extremes in exam questions and answer options.

Dana Do's: How to Use Mock Exams in Your Study Plan

I was recently asked if mock exams are useful in predicting how someone will do on the actual big exam. And, is repeating the same mock exam an effective study…

Dana Do's: How to Define the Markers of Trustworthy Measurement

PTB co-founder goes into the three factors that define trustworthy measurement-- "validity", "reliability" and "accuracy". But what's the difference between each? Dana explains.

Breaking Down a BCBA® Mock Exam Question: Winning Measurement System to Record Client Tolerance to Losing

Let's review and break down a BCBA® mock exam question about measurement techniques in ABA, specifically percentage of opportunity. PTB co-founder Dana Meller explains how to calculate the percentage of opportunities where the behavior is exhibited and why this method is superior to rate, count, and interval recording in certain situations. Refer to BCBA® Task List (5th ed.) Section C-3: Measure occurrence (e.g., count, frequency, rate, percentage).

ABA Terminology Break Down ➠ Indicators of Trustworthy Measurement

What are the three indicators of trustworthy measurement in ABA? PTB co-founder Dana Meller explains and why they ensure data accuracy and reliability. Refer to BCBA® Task List (5th ed.) Section C-8: Evaluate the validity and reliability of measurement procedures.

MiniBig

 

PTB MiniBig: Fast, Flexible, and Focused Exam Prep

The PTB MiniBig enables BCBA® exam prep candidates to tailor their study needs by popping in on single sessions of the intensive PTB Big Exam Prep Workshop. Each 3.5-hour session, focused on specific sections of the Task List, includes a mock exam followed by real-time, live, interactive feedback and access to live session replays, without committing to the full workshop.

Test your ABA Terminology ➠ Functional Assessment Procedures

Focusing on ABC data collection, PTB co-founder Dana Meller discusses functional assessment procedures. Dana explains how to generate mathematical probabilities for target behaviors based on specific antecedents and consequences, providing a step-by-step guide to quantitatively analyzing the gathered information. Refer to BCBA® Task List (5th ed.) Sections F-7: Conduct a descriptive assessment of problem behavior and F-9: Interpret functional assessment data.

Test Your Descriptive Assessment Skills ➠ ABC Recording Methods

Get a comprehensive overview of ABC Recording Methods. PTB co-founder Dana Meller breaks down the two types, along with their differences, benefits, and practical applications. Refer to BCBA® Task List (5th ed.) Sections F-7: Conduct a descriptive assessment of problem behavior; and F-9: Interpret functional assessment data.

Test your ABA Terminology ➠ Cumulative Record Calculations

PTB co-founder Dana Meller reviews a question about using cumulative records and their significance in behavior analysis. Learn how to utilize cumulative graphs to track behavior over specific time periods and measure and calculate response rates for insightful data analysis. Refer to BCBA® Task List (5th ed.) Section C-11: Interpret graphed data.

Shortcuts to Understanding the Basics Behind Each Experimental Design

Experimental design causes a lot of anxiety. PTB co-founder Dana Meller shares a few shortcuts to help on exam day, eliminating some answer options but also, more importantly, give you a head start on understanding the basics behind each design.

Test your ABA Terminology ➠ Identify the Measurement System in This Scenario

Test your measurement, data display, and interpretation knowledge with PTB co-founder Dana Meller as she discusses one specific measurement system that measures the effect of the behavior after its occurrence. Here, Dana details the two ways someone could implement this type of measurement system, provides examples of scenarios and a variety of corresponding measurement methods, and highlights some of the pros of utilizing this type of measurement system. Refer to BCBA® Task List (5th ed.) Section C-2: Distinguish among direct, indirect, and product measures of behavior.

Break Down a Mock BCBA® Exam Question: Interobserver Agreement (IOA) Facts & Rules to Live By

Test your Measurement, Data Display, and Interpretation skills with PTB co-founder Dana Meller as she reviews a BCBA® mock exam question about several #interobserveragreement (IOA) facts, with rules to live by. Here, Dana highlights a variety of important IOA benefits, as well as IOA percentage of agreement criteria details and the different reporting options. Refer to BCBA® Task List (5th ed.) Section C-8: Evaluate the validity and reliability of measurement procedures.

Breaking Down a Mock BCBA® Exam Question: Identify a 3-Phase Reversal Experimental Design

Test your Experimental Design skills with a breakdown of a BCBA® mock exam question about the identification of a three-phase experimental design. Included is a detailed comparison between four different reversal designs: ABC reversal, ABA reversal, BAB reversal, and ABAB reversal. As a bonus, Dana also provides examples of instances in which each of the reversal designs would be implemented. Refer to BCBA® Task List (5th ed.) Section D-5: Use single-subject experimental designs (e.g., reversal, multiple baseline, multielement, changing criterion).

Test your ABA Terminology ➠ Pivotal Behavior vs. Behavior Cusp

Test your behavior assessment knowledge with PTB co-founder Dana Meller as she compares and contrasts pivotal behavior vs. behavior cusp, providing several corresponding examples of each, as they relate to identifying the target behaviors that need prioritization for treatment. Refer to BCBA® Task List (5th ed.) Section F-3: Identify and prioritize socially significant behavior-change goals.

IOA Mini Quiz

Math can be daunting, but practice can help. You don’t have to be a math whiz to master the Interobserver Agreement formulas. Get more practice and gain confidence with the PTB IOA Mini Quiz. Updated for the 6th Edition Test Content Outline, the PTB IOA Mini Quiz features a new interactive format that simulates the test experience. Thirty fill-in-the-blank questions cover all 9 IOA formulas. Optional hints included with each quiz question assist you with the correct formula along the way. Check your work and collect data on your performance with the detailed score report. 

Test your ABA Terminology ➠ Interpret Descriptive Assessment Data

Test your knowledge of interpreting descriptive assessment ABC data with PTB co-founder Dana Meller. Here she discusses conditional probability, including the rules that apply, and provides a step-by-step example using the calculation formula and how to report these data. Refer to BCBA® Task List (5th ed.) Sections F-7: Conduct a descriptive assessment of problem behavior; F-9: Interpret functional assessment data.

Test your ABA Terminology ➠ Identify This Experimental Design Scenario

Test your ABA terminology with PTB co-founder Dana Meller as she offers guidance to identify the specific experimental design relating to a scenario. Refer to BCBA® Task List (5th ed.) Section D-5: Use single-subject experimental designs (e.g., reversal, multiple baseline, multielement, changing criterion).

Test your ABA Terminology ➠ Derivative Measures Explained

Put your knowledge of occurence measurement to the test with PTB co-founder Dana Meller as she discusses the two types of derivative measures, and each of their defining features and applications. Dana focuses on the derivative measure used for comparing two or more procedures, teaching clients new skills, evaluating mastery over a class of concepts, and the various measurement methods. Refer to BCBA® Task List (5th ed.) Section C-6: Measure trials to criterion.

Experimental Validity: The Relationship between Behavior Change & Independent Variables

PTB co-founder explains the different types of validity in ABA. Refer to BCBA® Task List (5th ed.) Section D-2: Distinguish between internal and external validity.

Test your ABA Terminology ➠ Indicators of Trustworthy Measurement

Test your knowledge with PTB co-founder Dana Meller as she explains the specific indicator of trustworthy measurement that corresponds with repeated measurement yielding the same result. Included is a description of all three indicators of trustworthy measurement validity, accuracy, and reliability. Refer to BCBA® Task List (5th ed.) Section C-8: Evaluate the validity and reliability of measurement procedures.

Breaking Down a Mock BCBA® Exam Question: Understanding Equal-Interval Graphs & Logarithmic Scales

Test your knowledge of ABA graphs with PTB co-founder Dana Meller as she reviews a BCBA® mock exam question about equal-interval graphs, exploring their unique properties. Included, Dana explains the concept of proportional values and highlights the graph(s) which operate on a logarithmic scale, offering a different perspective on changes in behavior. Refer to BCBA® Task List (5th ed.) Sections C-10: Graph data to communicate relevant quantitative relations (e.g., equal-interval graphs, bar graphs, cumulative records); C-11: Interpret graphed data.

Test your ABA Terminology ➠ Confounding Threats to Internal Validity

Test your knowledge of measurement confounds with PTB co-founder Dana Meller as she discusses one of the four types of threats to internal validity, with corresponding examples. Refer to BCBA® Task List (5th ed.) Section C-8: Evaluate the validity and reliability of measurement procedures.

Breaking Down a BCBA® Mock Exam Question: It's the IOA Battle Royal. Which Formula Gets Knocked Out?

Sharpen your measurement skills with PTB co-founder Dana Meller as she reviews a BCBA® mock exam question about IOA and helps explain the different formulas used for time sampling measurements. Dana covers four IOA formulas: Interval-by-Interval, Scored Interval, Trial-by-Tial, and Unscored Interval; and highlights key considerations and pitfalls associated with each. BCBA® Task List (5th ed.) Section C-8: Evaluate the validity and reliability of measurement procedures.

Test your ABA Terminology ➠ Fundamental Properties of Behavior Change

Test your ability to interpret graphed data with PTB co-founder Dana Meller. Here she explains the three fundamental properties of behavior change, focusing on one specific property akin to an average or median. Included are descriptions of level, trend, variability, and the y-axis. Refer to BCBA® Task List (5th ed.) Section C-11: Interpret graphed data.

Breaking Down a BCBA® Mock Exam Question: The #1 Threat to Accuracy and Reliability

Test your measurement knowledge with PTB co-founder Dana Meller as she reviews a BCBA® mock exam question about the key indicators of trustworthy measurement, revealing the most significant threat facing accuracy and reliability. Dana provides insight into the distinctions between reliability, validity, and accuracy and how they relate to measurement. BCBA® Task List (5th ed.) Section C-8: Evaluate the validity and reliability of measurement procedures.

Threats to Validity Exposed: When Misleading Data Plays Tricks on Your Perception

Test your knowledge of measurement procedures with PTB co-founder Dana Meller as she explains, in detail, one of the threats to validity with several corresponding examples. Dana also shares a clever memorization study tip that will help you on the Big exam. Refer to BCBA® Task List (5th ed.) Section C-8: Evaluate the validity and reliability of measurement procedures.

Dana Do's: All the Validities in ABA, Explained

PTB founder Dana Meller helps connect each of the validities to the validity of this explanation.

Let's Break Down a BCBA® Mock Exam Question: Identifying Measurement Confounds in Experimental Design

PTB co-founder Dana Meller breaks down a BCBA® mock exam question that explores the difference between measurement confounds and subject confounds, how they relate to threats to internal validity in ABA research. Refer to BCBA® Task List (5th ed.) Section D-2: Distinguish between internal and external validity.

Let's Break Down a BCBA® Mock Exam Question: Ethical Considerations in Experimental Design

Test your understanding of ethical considerations in experimental designs with PTB co-founder Dana Meller. Let's review a BCBA® mock exam question about reversal design and the nuances and concerns associated with this experimental setup. Refer to BCBA® Task List (5th ed.) Section D-5: Use single-subject experimental designs (e.g., reversal, multiple baseline, multielement, changing criterion).

The Most Utilized Experimental Design for Generalization Effects

Learn what the most utilized experimental design is for generalization effect. PTB co-founder Dana Meller shares this design's key features and benefits, allowing us to assess the effects of an independent variable across various settings, subjects, and behaviors. Refer to BCBA® Task List (5th ed.) Section D-5: Use single-subject experimental designs (e.g., reversal, multiple baseline, multielement, changing criterion).

CON Artist Captured! Unmasking the CONfounding Variable of the Alternating Treatments Design

PTB co-founder Dana Meller hones your experimental design skills with a focus on the alternating treatments design's confounding variable. Refer to BCBA® Task List (5th ed.) Section D-5: Use single-subject experimental designs (e.g., reversal, multiple baseline, multielement, changing criterion).

Dance the Axes Tango: Assessing Intervention Effectiveness on the Dynamic Data Graph Floor

Sharpen your experimental design skills and explore how independent variables influence behavior. PTB co-founder Dana Meller explains how to decipher graphical representations of data and understand the roles of the y-axis and x-axis. Refer to BCBA® Task List (5th ed.) Section D-1: Distinguish between dependent and independent variables.

Let's Break Down a BCBA® Mock Exam Question: Analyzing the Fundamental IV & BehaviorChange Relationship

Hone your experimental design skills through review of a BCBA® mock exam question. PTB co-founder Dana Meller breaks down the crucial aspect of experiments—how they demonstrate changes in behavior attributed to the independent variable. Refer to BCBA® Task List (5th ed.) Section D-2: Distinguish between internal and external validity.

The Proof of Function is in the Reversal Design Pudding

PTB co-founder Dana Meller puts your understanding of experimental design to the test. What are the critical phases required for a successful and robust experimental setup. Refer to BCBA® Task List (5th ed.) Section D-5: Use single-subject experimental designs (e.g., reversal, multiple baseline, multielement, changing criterion).