O-X-O

shorthand for a one-group pretest–posttest design, in which the researcher observes and measures a single set of participants (O), introduces an intervention (X), and then measures the participants (O) again to determine whether the intervention resulted in any change.

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Psychology term of the day

February 25th 2025

estazolam

n. a high-potency, intermediate-acting benzodiazepine used for the short-term treatment of insomnia. U.S. trade name: ProSom.