PSYCH 2010 Study Guide - Quiz Guide: Psychological Testing, Social Desirability Bias, Sampling Bias
2 Sep 2016
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Document Summary
Anecdotal evidence: consists of personal stories about specific incidents and experiences. Case study: in-depth investigation of an individual subject. Confounding of variables: two variables are linked in a way that makes it difficult to sort out their specific effects. Control group: similar subjects who do not receive the special treatment given to experimental group. Correlation: when 2 variables are related to each other. Correlation coefficient: numerical index of the degree of relationship between two variables. Data collection techniques: procedures for making empirical observations and measurements. Experiment: investigator manipulates a variable under carefully controlled conditions and observes whether any changes occur in a second variable as a result. Experimental group: subjects who receive some special treatment in regard to the independent variable. Experimenter bias: when a researcher"s expectations or preferences about the outcome of a study influence the results obtained. Extraneous variable: any variables other than independent variable that seem likely to influence the dependent variable in a specific study.
