RESEARCH METHODS THINKING CRITICALLY WITH PSYCHOLOGICAL SCIENCE
EXPERIMENTAL VARIABLES IN PSYCHOLOGY
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Question
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hypothesis
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operational definition
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results
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subject
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Detailed explanation-1: -Operational Definition: A statement of procedures used to define research variables.
Detailed explanation-2: -An operational definition should identify how the variable is calculated or recorded as a numeric value. In addition, the operational definition should specify the range of possible values and the variable’s level of measurement (nominal, ordinal, or interval).
Detailed explanation-3: -An operational definition, in Kerlinger’s words, is a definition. “that assigns meaning to a construct or variable by specifying the. activities or ‘ operations’ necessary to measure the construct or variable.
Detailed explanation-4: -a description of something in terms of the operations (procedures, actions, or processes) by which it could be observed and measured. For example, the operational definition of anxiety could be in terms of a test score, withdrawal from a situation, or activation of the sympathetic nervous system.