Measurement and Data Collection Flashcards

Which type of graph is most commonly used in single-subject ABA research to display data across conditions and phases?

Answer: Line graph

Line graphs display data points connected by lines across time, making it easy to visualize trends, level changes, and variability across experimental conditions.

What does a 'phase change line' on a behavior graph indicate?

Answer: A change in the experimental condition or intervention

A phase change line is a vertical line drawn on a graph to indicate the point at which an experimental condition or intervention changed.

What is the primary purpose of a cumulative record in behavior analysis?

Answer: To show response rate via slope across time

A cumulative record plots the total number of responses over time; the slope of the line directly reflects response rate, making rate changes visually apparent.

Which measurement dimension is defined as the time elapsed between the onset of a stimulus and the initiation of a response?

Answer: Latency

Latency is the elapsed time between the onset of an antecedent stimulus and the start of the target response.

Whole-interval recording tends to do which of the following relative to the true occurrence of a behavior?

Answer: Underestimate

Whole-interval recording underestimates behavior because it only scores an interval as positive if the behavior occurred throughout the entire interval.

A behavior analyst calculates IOA by dividing the number of intervals with agreement by the total number of intervals and multiplying by 100. What method is this?

Answer: Interval-by-interval IOA

Interval-by-interval IOA compares each interval independently and expresses overall agreement as a percentage of intervals where both observers recorded the same outcome.