BACB Measurement and Data Collection 3

Question 1

Which data display feature describes the overall direction that data are moving over time (upward, downward, or flat)?

Accepted Answer

Trend

Answer

Trend refers to the systematic direction of data over successive data points, indicating whether behavior is generally increasing, decreasing, or staying the same.

Question 2

A behavior analyst records the number of intervals in which a behavior occurred out of the total intervals observed and converts to a percentage. What is this called?

Accepted Answer

Percent occurrence

Answer

Percent occurrence divides the number of intervals (or trials) in which a behavior occurred by the total number of intervals observed and multiplies by 100.

Question 3

What is the term for the average value of data within a phase, used to summarize overall performance level?

Accepted Answer

Mean (mean level)

Answer

The mean (mean level) is the arithmetic average of data points within a phase and serves as a summary statistic of the typical performance level during that phase.

Question 4

Which scatter plot variant used in ABA identifies the times of day or conditions most associated with high rates of problem behavior?

Accepted Answer

Scatter plot (time-based)

Answer

A scatter plot in ABA is a grid organized by time of day and session/day that is filled in when the target behavior occurs, revealing temporal patterns.

Question 5

In data analysis, what does 'variability' refer to?

Accepted Answer

The spread or inconsistency of data points around a central value

Answer

Variability refers to how much individual data points deviate from each other or from a measure of central tendency within or across phases.

BACB - Behavior Analyst Certification Board Practice Test

BACB - Behavior Analyst Certification Board Practice Test

BACB Measurement and Data Collection 3