PSY100Y5 Chapter Notes - Chapter 2: Statistical Inference, Canadian Psychological Association, Sampling Bias
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PSY100Y5 Full Course Notes
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Chapter 2 - the research enterprise in psychology. Goals of the scientific enterprise: measurement and description. Figure out a way to measure the phenomenon under study. Develop measurement techniques that make it possible to describe behaviour clearly and precisely: understanding and prediction. Hypothesis: a tentative statement about the relationship between two or more variables. Variables: are any measureable conditions, events, characteristics, or behaviours that are controlled or observed in a study: application and control. Theories permit psychologists to make leap from the description of behaviour to the understanding of behaviour. Confidence in a theory increases when hypotheses derived from it are supported by research. Steps in scientific investigation: formulate a testable hypothesis. Scientists use operational definitions to clarify what their variables mean. Operational definitions: describes the actions or operations that will be used to measure or control a variable: select the research method and design the study.
