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time-of-measurement effect

an effect that is due to the social and historical influences present at the time a measurement is made. These effects are difficult to separate from age effects in longitudinal designs.

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Psychology term of the day

October 15th 2024

level

level

n. in an experimental design, the quantity, magnitude, or category of the independent variable (or variables) being studied. For example, if a researcher is assessing the effect of alcohol on cognition, each specific amount of alcohol included in the study is a level (e.g., 0.0 oz, 0.5 oz, 1.0 oz, 1.5 oz).