PSY 236 Lecture Notes - Lecture 1: Alternative Hypothesis, Personality Test, Naturalistic Observation
13 Sep 2016
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No difference between groups: alternative hypothesis. If the alternative turns out to be true, we reject the null hypothesis. If the alternative is false, we fail to reject the null hypothesis. Ask a question: can we answer this question via a research study: operationalizing the hypothesis, stating the independent variable (iv, understanding the dependent variable (dv, control variables. Matching: look at all the negative influences to the group, measure them, and make sure both groups are equal, severity of symptoms. Survey and interview data: self-report, clear and unbiased questions. ***observation changes someone while you"re in their environment. Experimental research: hypothesis, independent variable, dependent variable, controlled variable. Measures the relationship or association between two variables. The value of correlation is from -1 to +1. 1 and +1 represent perfect negative and positive relationships. For this class, we will say it is measure by rho. 70 correlation between severity of schizophrenic symptoms and level of socialization.
