PSYCH 230 Chapter Notes - Chapter 2: Hindsight Bias, Internal Validity, Institutional Review Board
15 Feb 2018
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Formulating hypotheses and theories: research begins with a hunch or hypothesis that a researcher wants to test, many studies stem from a researcher"s dissatisfaction with existing theories and explanations. Positive: both increase, negative; one increases the other decreases: surveys, random selection: way of ensuring that a sample of people is representative of a population by giving everyone an equal chance of being selected. Iv: the variable the researcher changes or varies to see if it has an effect on some other variable: dv: outcome of interest; variable measured to see if it is influenced by ov. Internal validity; keeping everything but the independent variable the same in an experiment; making sure that the iv only influences the dv; controlling all variables and random assignment: random assignment to. Basic research: find the best answer to the question of why people behave as they do; purely for reasons of intellectual curiosity.
