Operational Definition Of Variables Psychology
An operational independent variable on the other hand is one that the researcher uses in her study. Variables are generally used in psychology experiments to determine if changes to one thing result in changes to another.
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A variable is something that can be changed or varied such as a characteristic or value.
Operational definition of variables psychology. An operational definition is the articulation of operationalization or statement of procedures used in defining the terms of a process or set of validation tests and the expected outcomes needed to determine the existence of an item or phenomenon a variable term or object and its properties such as duration quantity extension in space chemical composition etc. Operational definition of variables. Operationalizing variables it is very important in psychological research to clearly define what you mean by both your independent and dependent variables.
Every good psychology study contains an operational definition for the variables in the research. An example is cognitive task performance being defined as number of errors on proofreading task in a ten minute period. An operational definition allows the researchers to describe in a specific way what they mean when they use a certain term.
In this case the operational independent variable is an individual s score on this test. They are simply descriptions of measurement actions. Hunger connection between reported feeling of hunger and sensory experience prejudice premature judgment frustration blocked goals depression feeling sadness and despair sleep and weight problems lost interest.
For example a researcher interested in measuring a person s iq may administer a raven s matrices iq test. Operational definition definition of a variable in terms of the operations techniques the researcher uses to measure manipulate it. Generally operational definitions are concrete and measurable.
Operational definitions are not always good or valid. Variables play a critical role in the psychological research process. Variables operational definitions and values the last definition in the table number of hairs on the left thumb reminds us of the point made above.
Define variables in abstract terms. Operational variables or operationalizing definitions refer to how you will define and measure a specific variable as it is used in your study.
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