RBT A (Measurement)

Terms

Probe data

Data taken in small periods

Repeatability (Countability)

If behaviour repeats & can be counted once defined

Temporal extent

If behaviour has duration

Temporal locus

If behaviour happens at specific points in time

Continuous Measurement

Recording every instance of a target behaviour

Frequency

AKA Count, Event Recording

Number of times behaviour happened

Rate

Frequency over time

Duration

Time between onset to offset of behaviour

Latency

Time between stimulus & behaviour

Inter-Response Time

Time between each instance of behaviour

Discontinuous Measurement

Score a specific point or intervals in time

Partial Interval Recording

Score if behaviour happens anytime during given interval of 5-15 s

For behaviour with no clear beginning or end

Whole Interval Recording

Score if behaviour happens for entire interval

For continuous/frequent behaviour, can lead to underestimation of behaviour

Momentary Time Sampling

Score if behaviour happens at specific point in interval (end of interval)

Tends to overestimate AND underestimate behaviour

Task Analysis Data

Score if student did each step of a longer task & if performance needed prompts

Trial-by-Trial Data

Score performance of discrete trials, followed by consequence

First Trial-by-Trial Data

Score performance of first discrete trial of session

Estimation Data

Score % of correct responses AND frequency & duration of behaviour at end of session

Permanent Product

Record durable outcome of behaviour

Line Graphs (use)

For tracking progress of behaviour/response over unit of time

Most common in ABA

Charts should be updated weekly

Bar Graphs (use)

Track averages of behaviour before & after intervention

Abscissa, Ordinate

Abscissa: x-coordinate

Ordinate: y-coordinate

Cumulative Records

Graph that shows behaviour data as it cumulates over time

Flatline = no behaviour

Doesn’t go down

Interobserver Agreement

To what extent 2+ independent observers report same observed values after measuring the same event

Important for accuracy & reliability of data

Percentage of Opportunity

(#of correct responses/ #of opportunities to respond) x 100

Functional Behaviour Assessment

7 Dimensions of ABA

• Applied: Applied interventions deal with problems of demonstrated social importance.

• Behavioral: Applied interventions deal with measurable behavior (or reports if they can be validated).

• Analytic: Applied interventions require an objective demonstration that the procedures caused the effect.

• Technological: Applied interventions are described well enough that they can be implemented by anyone with training and resources.

• Conceptual Systems: Applied interventions arise from a specific and identifiable theoretical base rather than being a set of packages or tricks.

• Effective: Applied interventions produce strong, socially important effects.

• Generality: Applied interventions are designed from the outset to operate in new environments and continue after the formal treatments have ended