True False
Methods for Calculating IOA
AKA
Caluclations
Acronyms
100

IOA Must be reported in %

True

100

When an observer's data collection is influenced by the awareness that they are being monitored and evaluated

Observer Reactivity

100

Interval Recording

Time Sampling Procedures

100

This method overestimates the extent of the actual agreement

Total Count IOA 

Smaller#/Larger # * 100

OR TOtal Duration IOA

100

VAR

Validity, accuracy, reliability - 3 indicators of trustworthy measurement (low to high)

200

IOA should be taken for a minimum of 40% of sessions during each phase of a study, across days of the week, times of day, settings, or observers

FALSE - 20%, AND observers


200

When observers have a shift in how they interpret the operational definitions of the target behavior

Observer Drift

200

PLACHECK

Planned Activity Check
200

This method is the strictest method to collect IOA

Exact count-per-interval IOA

200

3 threats to validity

Indirect measures, measuring the wrong dimension of the target behavior, measurement artifacts

300

IOA can be reported in narrative format

TRUE: most common and easiest; report the mean and range of agreement %

300

Interval-by-interval, Scored interval, un-scored interval

Time Sampling Procedure IOAs

300

Discontinuous Measurement Systems

Time Sampling Procedures

300

This method should be used for DTT  

Trial-by-trial IOA

# of trials in agreement / total trials * 100

300

Data do not provide a meaningful representation of the behavior due to unwarranted and misleading picture of behavior because of how it was measured

Measurement Artifacts

400

IOA goal is 100%

True; at least 80%

400

Total Duration IOA & Mean Duration-per-occurrence IOA

Temporal Duration IOAs

400

Point-by-point IOA

Interval-by-Interval IOA

400

Scored Interval IOA should be used for behaviors that occur at frequencies of approximately _____%

30%; un-scored interval for 70% or more 

400

4 Repeatability Measures

Total Count IOA, Mean count per interval IOA, Exact count per interval IOA, Trial by Trial IOA

500
There are 5 methods of collecting IOA

FALSE; 8 ways

500

Total Count IOA, Mean Count-per-interval, exact count-per interval, trial-by-trial IOA

Repeatability Measure IOAs

500

Point-by-point Agreement Ratio IOA

Interval-by-Interval IOA

500

Most common means to ensure the quality of measurement in ABA

Interobserver Agreement (IOA)

500

Temporal Measure IOAs

Total duration IOA, Mean duration per occurrence IOA

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