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ABA 2 Chapter 4
Vocabulary
27
Psychology
Graduate
10/14/2010

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Term
Artifact
Definition
An outcome or result that appears to exist b/c of the way it is measured but in fact does not correspond to what actually occurred
Term
Celeration
Definition
The change acceleration or deceleration) in rate of responding over time
Term
Celeration time period
Definition
A time (per week or month) that celebration is plotted on a celebration chart
Term
Celeration trend line
Definition
Measured as a factor by which multiplies or divides across the celebration time period
Term
Count
Definition
A simple tally of occurrences of a behav
Term
Discrete trial
Definition
Any operant whose response rate is controlled by a given opportunity to omit the response
Term
Duration
Definition
A measure of the total extent of time between in which behaviors occur
Term
Event recording
Definition
Measurement procedure for obtaining a tally or count of the number of times a behavior occurs
Term
Free operant
Definition
Any operant behavior that results in a minimal displacement of the participant in time and space
Term
Frequency
Definition
A ratio count per observation time
Term
Interresponse time (IRT)
Definition
The elapsed time between 2 successive responses
Term
Magnitude
Definition
The force or intensity with which a response is emitted
Term
Measurement
Definition
The process of assigning numbers and units to particular features of objects or events
Term
Measurement by permanent product
Definition
A method of measuring a behavior after is occurs by recording the effects that the behavior produced on the environment
Term
Momentary time sampling
Definition
A measurement method in which the presence or absence if behaviors are recorded at precisely specified time intervals
Term
Partial-interval recording
Definition
A time sampling method for measuring behavior in which the observation period is divided into a series of brief time intervals
Term
Percentage
Definition
Expressed as a number of parts per 100
Term
Planned activity check
Definition
A variation of momentary time sampling in which the observer records whether each person in a group is engaged in the target
Term
Rate
Definition
A ratio of count per observation time
Term
Repeatability
Definition
Refers to the fact that a behavior can occur repeatedly through time
Term
Response latency
Definition
The elapsed time from the inset of a stimulus to the initiation of the response
Term
Temporal extent
Definition
Refers to the fact that every instance of behavior occurs during some amount of time
Term
Temporal locas
Definition
Refers to the fact that every instance of behavior occurs at a certain point in time with respect to other events
Term
Time sampling
Definition
A measurement of the presence or absence of behavior within specific intervals
Term
Topography
Definition
A physical form or shape of a behavior
Term
Trials-to-criterion
Definition
A measurement of the number of responses or practice opportunities needed for a person to achieve a pre-established level of accuracy/proficiency
Term
Whole-interval recording
Definition
A time sampling method for measuring behavior in which the observation period is divided into a series of brief time intervals
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