PSY240H1 Lecture Notes - Null Hypothesis, Statistical Significance, Abnormal Psychology
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PSY240H1 Full Course Notes
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Difficulty with clear cut answers: thoughts and feelings are hard to measure, people don"t always tell the truth, different clinicians have different perceptions. People change: how to categorize something that"s ever changing, depression waning/changing, depending on environment as well. Abnormality has multiple causes: most researchers don"t examine all factors that cause disorder, most focus on small area. Hard to manipulate variables: eg, measure of stress ? how to manipulate. Variable measured in laboratory not the same as occurs in real life if understand research method, can understand more about disorder and their treatment. Hypothesis: as specific as possible in order for testing. Null hypothesis: no statistical relationship between dependent and independent variables, depends on whether a statistical significant result, 5 times out of 100 the cut off for statistical significance. Independent and dependent variable: dependent variable is the variable that changes according to the independent variable, which is manipulated. Reliability: can it be replicated in diff laboratories and across time.
