FRHD 3180 Chapter Notes - Chapter 9: Construct Validity
17 Apr 2016
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Document Summary
Once an observer has selected appropriate categories of behaviour on which to focus and in order to maximize reliable observing, it is necessary to devise a plan for systematically sampling observations in the setting. Two useful sample procedures: time sampling: Attends to the occurrence or nonoccurrence of selected behaviours within speci ed, uniform time limits. Length, spacing and number of time units are determined by the purpose of the observer. Appropriate procedure to sample behaviours that occur in rapid succession. Important to use a simple form of coding or abbreviating that facilitates recording of the observed behaviours. One has to create a balance between: the most appropriate time unit, the number of individuals to be observed, the detail desired from the observation. Be aware that time sampling can overestimate low frequency or brief behaviours: event sampling: Good control over the mechanics of the system. Good overview of the range of behaviours and events occurring in a particular setting.
