PYB210 Lecture Notes - Lecture 3: Intelligence Quotient, Demand Characteristics, Repeated Measures Design
4 Jul 2013
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Construct validity is the extent to which the operational iv and dv accurately reflect the factors (concept of the experiment) they are intended to represent. For example, in doug"s computer anxiety experiment, the concept was to explore the effect of social learning on computer anxiety. Doug operationalised the social learning iv in the form of either a positive of negative attitude instructor. Therefore, the operationalisation of the experiment lacked construct validity: tests of construct validity are best conducted in a pilot study before commencing the actual experiment. Method of measuring the construct validity in the independent variable: Manipulation check one way to check construct validity within the iv is a manipulation check. This could, for example, involve asking the participants after the experiment how they felt about or rated the iv. This will tell us if the iv was behaving as it should have been during the experiment. Method of measuring the construct validity in the dependent variable:
