General Problems
Skinner notes the problems of verbal behavior as a dependent variable. Skinner's general position favors rate of response as a dependent measure which, in Verbal Behavior is problematic since all verbal behavior does not have the same unitary quality as a lever press. In the ascertaining of the strength of a response Skinner suggests some criteria for strength(probability):emission, energy-level, speed, repetition, but notes that these are all very limited means for inferring the strength of a response as they do not always vary together as they may come under the control of other factors. Emission is a yes/no measure, however the other three—energy-level, speed, repetition—comprise possible indications of relative strength.
- Emission – If a response is emitted it may tend to be interpreted as having some strength. Unusual or difficult conditions would tend to lend evidence to the inference of strength. Under typical conditions it becomes a less compelling basis for inferring strength. This is an inference that is either there or not, and has no gradation of value.
- Energy-level – Unlike emission as a basis for inference, energy-level (response magnitude) provides a basis for inferring the response has a strength with a high range of varying strength. Energy level is a basis from which we can infer a high tendency to respond. An energetic and strong "Chomsky!" forms the basis for inferring the strength of the response as opposed to a weak, brief "Chomsky".
- Speed – Speed is the speed of the response itself, or the latency from the time in which it could have occurred to the time in which it occurs. A response given quickly when prompted forms the basis for inferring a high strength.
- Repetition – "Chomsky! Chomsky! Chomsky!" may be emitted and used as an indication of relative strength compared to the speedy and/or energetic emission of "Chomsky!". In this way repetition can be used as a way to infer strength
- Limitations – Skinner notes that these are "easy to overestimate" especially in single instances. Other, extraneous variables, such as noise, special listeners, or those at a distance may induce variation in these relative indicators unrelated to their proper strength.
- Overall frequency – The overall frequency of a response in a large body of responses may be used as another indicator of strength. Skinner's analysis of alliteration might be seen as one form of this analysis (Skinner, 1939).
Read more about this topic: Verbal Behavior
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