signal detection

signal detection - CogLab Report: Signal Detection...

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CogLab Report: Signal Detection Introduction The question under investigation is the validity of results, that is, whether or not the results are good data or not. Researchers must find ways to design an experiment to make sure the participants are following the instructions and are motivated to try their best. The best way for researchers to do this is to have two trials where one has a target present and in the other the target is absent. Individuals will look at a picture of a bunch of randomly placed dots; the number of random dots varies from trial to trial. On each trial, a bunch of randomly placed dots were shown. On half of the trials a target (an additional set of ten dots, arranged in a straight line that slants downward from left to right) was randomly placed among the dots. On the other trials the target was absent. Individuals are then to report whether the target was present or not. Method
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This note was uploaded on 03/20/2008 for the course PSY 432 taught by Professor Hornak during the Spring '08 term at Meredith.

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signal detection - CogLab Report: Signal Detection...

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