PSYC 201W Chapter Notes - Chapter 6: Statistical Conclusion Validity, Construct Validity, Dependent And Independent Variables
4 Apr 2018
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Introduction: research validity: truthfulness of inferences made from a research study. Statistical conclusion validity: validity of the inference made about whether the independent and dependent variable co-vary: do the two variables vary together, statistical significance: the observed relationship is probably not due to chance. Anxiety level, intelligence, dominance, warmth: situational factors: participant and experimenter have had prior contact, whether the experimenter is experienced and whether the participant is friendly or hostile. Instrumentation: changes from pretest to post-test in the assessment or measurement of the dependent variable. Two step process: researcher has to generalize from the sample to the accessible population, then the researcher must generalize from the accessible population to the target population. Generalizing across a population: to what extent the findings generalize to different kinds of people in a population. Ecological validity: the degree to which the results of a study can be generalized across settings or environmental conditions, laboratory experiments sometimes lack ecological validity.
