Continuous Measurement Procedures
- Frequency
- Duration
- Latency
- Inter-Response Time
Continuous Measurement
Records every possible behavioral occurrence
Frequency
Ratio of count per observation time
Duration
Total extent of time in which a behavior occurs
Latency
Elapsed time from the onset of a stimulus to the initiation of a response
IRT
Elapsed time between two successive responses
Discontinuous Measurement Procedures
- Partial Interval Recording
- Whole Interval Recording
- Momentary Time Sampling
Discontinuous Measurement
Records a sample of behavior during an observation
Partial Interval Recording
Observing whether a behavior occurs or does not occur during specified time periods
ex. in 10 second intervals, for a period of 10 minutes, did the client interact with the new toy?
Whole Interval Recording
Observing whether a behavior occurs or does not occur throughout the entire specified interval of time
ex. in a period of 10 minutes, did the client engage on task behavior?
Momentary Time Sampling
Observing whether a behavior occurs at the very end of a specified interval of time
ex. in a 10 minute observation period, divided into 30 second intervals (20 total observation opportunities) did the Hulk engage in aggressive behavior?
How to prep for data collection
- read data from last session
- prepare materials and programs for current session
- determine what programs you plan to work on during the session
- gather materials
- set up the first set of programs so they are ready
Percent of Occurrence
80-90% accuracy determines acquisition
Trials to Criterion
number of consecutive opportunities to respond required to achieve a performance standard
Discrete Categorization
classifying responses into discrete categories (severity, duration, independence/prompting codes)
Permanent Product Recording Procedures
measuring behavior after it has occurred by measuring tangible items or the effects a behavior has on the environment
Why do we collect data?
- to track client progress
- to engage in data based decision making
Why do we need graphs?
- to determine client progress
- to be included in regular written reports to our funding providers
