Simple can do while engaging in other activities Time sampling (discont.) Event recording Records # of times a response occurs Bxs requiring constant attending by observer 3 procedures for measuring behaviorģ. (Time sampling & interval recording methods) Advantages/Disadvantages of Discontinuous measurement Useful for Bxs that: Are opportunity based Discontinuous measurement procedures Measurement in which some instances of the response class of interest may NOT be detected. don't require much time to complete Disadvantages of Continuous measurement NOT useful for Bxs that: require minimal displacement of organism in time/space (event and timing) Advantages of Continuous measurement Useful for Bxs that: Certain responses need to be emitted at a specific level of intensity (eg, volume of a voice in the library vs crowded store) Continuous measurement procedures ALL instances of the response class of interest are detected during obs'n period. MALLEABLE dimension of the X = varying forms shaped/selected by consequences Magnitude Use when form of BX is critical (gymnastics/dance) (Definitional measure) Form/shape of the response To compare # of trials (opps) required to learn a multistep task (shoe tying) Topography To assess learner's increasing competence in acquiring a related class concepts (red) What to use trials to criteria on for: - Often used to compare relative efficiency of 2+ TXs. Can use count, rate, duration, or latency to determine this data. "trial" depends on the nature of the target BX and desired performance level. (derivative measure) # of response opps needed to achieve predetermined level of performance criteria. NOT correct to claim improvement over 100% Trials to criterion Can't use it to record proficiency or fluency. It imposes lower and upper limits on data. Percentage advantages and disadvantages + It's used when one wants to document % of responses Express proportional quantity of some event in terms of #/100 opps Percentage: a derivative measure RATIO formed by combining the same dimensional quantities, such as count Interresponse time (IRT): Amt of time between 2 consecutive instances of a response class. Use when measuring time between opportunity to emit BX and when BX is initiatedĢ. Response latency (AKA: latency): Time between onset of stimulus & initiation of response. Interresponse time 2 types of temporal locus measures 1. It examines when an instance of BX occurs with respect to other events Duration per occurrence: duration of time that each instance of BX occurs Temporal locus (dimensional quantity) Measure the TIME at which BX occurs (LOCUS=point in time) Total duration per session: cumulative time engaged in BXĢ. 2 methods for calculating duration (of BX - temporal extent) 1. BX that occurs for too long/short a period of time. Temporal Extent (dimensional quantity) Only one type: DURATION (amt of time in which a BX occurs)
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