PS101 Chapter Notes - Chapter 2: Dependent And Independent Variables, Caffeine, Operational Definition

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3 Dec 2013
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Theory- constructed to build a better understanding of behaviour. A theory is a system of interrelated ideas used to explain a set of observations develop from a description of behaviour to the understanding of behaviour. Scientific theory- theory used as a commitment to putting ideas to an empirical test (experimental); thus, must be testable. Raw data is usually converted into numbers (statistics: report the findings. Advantages of the scientific approach clarity and precision: requires people to specify exactly what they are talking about when they formulate a hypothesis relative intolerance of error. Research methods- consist of various approaches to the observation, measurement, manipulation and control of variables in empirical studies; strategies for conducting studies. Two basic research methods used in psychology are : experimental research. Experiment- a research method in which the investigator manipulates a variable under carefully controlled conditions and observes whether and changes occur in a second variable as a result.

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