PSYC 2300 Lecture Notes - Lecture 11: Mental Disorder, Dependent And Independent Variables
29 Apr 2016
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Yes, the treatments and methods were very clearly described. Yes; the sample was taken from child psychiatric clinics or the child s department of a dental hospital, both of which were in london. Yes; all participants were given the exact same thing (no control group). To minimize ef- fects that may occur by answering one questionnaire first over another, the order in which the questionnaires were given was randomized. However, it was assumed by the researchers that children from the psychiatric clinics were more likely to have a mental disorder. In the experiment, researchers were evaluating the sensitivity and specificity in order to determine the efficacy of the sdq vs. the rutter as a predictor for behaviour. Sensitivity was the dependent variable; as the specificity increased (the amount of negatives that are correctly classi- fied as negative), the sensitivity (the amount of positives correctly classified as positive) in- creased rapidly and then plateaued in both questionnaires.
