PSYC 201W Lecture Notes - Lecture 2: Statistical Hypothesis Testing, Caffeine, Confounding
30 Sep 2016
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Chapter 2: september 16, 2016: ways of categorizing research approaches, experimental: attempt to identify cause and effect relationships through psychological experiments. One thing is varied to see what happens to something else. E. g. taking a video of someone with a mental disorder/depression to see how they act - placebo & antidepressant. Quantitative: collects some type of numerical data to answer a given research question. Produce #s we can analyze with our computer. Qualitative: collects some type of non-numerical data to answer a research question. Pictures, words, statements, clothing, written records or documents, description of situations & behaviour: ways of categorizing variables in quantitative research, variable: something that takes on different values & categories. A single value or category of a variable. E. g. reaction time, anxiety level on a scale, height, age, rate of cognitive processing. Independent variable: presumed to cause changes in another variable. The thing that you think causes change. Measure it and see if it causes change.
