PSY100H1 Chapter Notes - Chapter 5: Statistical Significance, Abnormal Psychology, Random Assignment
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PSY100H1 Full Course Notes
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Chapter 5 research methods in the study of abnormal behaviour. A theory is a set of propositions meant to explain a class of phenomena. Primary goal of science is to advance theories to account for data, often by proposing cause-effect relationships. A comprehensive case study would include family history, background, medical history, educational background, jobs held, marital history, details concerning development, personality, life course, and current situation. Correlational method: establishes whether there is a relationship between/among 2 or more variables. The variables being studied are measured as they exist in nature. Correlation coefficient (r): strength of the relationship between the two sets of variables (-1. 00 to +1. 00) The higher the value of r, the stronger the relationship between the two variables therefore -1 and +1 are the strongest while 0. 00 indicates that they are unrelated. Statistical significance: refers to the likelihood that the results of an investigation are due to chance (5/100 or less is considered as statistical significance. )
