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.
Interobserver agreement (IOA) Read More
Task List Reference: C-8
Evaluate the validity and reliability of measurement procedures.
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.
Dana Do’s: Why IOA Math Should Not Intimidate You Read More
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.
Dana Do’s: How to Define the Markers of Trustworthy Measurement Read More
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 Decipher the Many Forms of Validity Read More
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.
Dana Do’s: All the Validities in ABA, Explained Read More
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.
Breaking Down a BCBA® Mock Exam Question: The #1 Threat to Accuracy and Reliability Read More
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.
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.
Accuracy
The degree to which what was measured (observed value) is representative of what actually occurred (true value); in other words, the data was measured correctly.
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.
ABA Terminology Break Down ➠ Indicators of Trustworthy Measurement Read More