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Unformatted text preview: -halo effect-predetermined positive biases lead to above-appropriate rating-contrast effect-rate high if similar to the interviewer, rate low if dissimilar 3, Experimental methodology-experimental drug-must use a control group-spontaneous remission-suggestion of pills effect-getting attention-outside influences Experimental Design 1. define the population of subjects 2. draw a random sample Dependent Variable Pretest Independent Variable Dependent Variable Posttest Experimental Before Pill After Control Before Placebo After-Placebo-controls for autosuggestion and the Hawthorne effect-increase in motivation from getting attention...
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