nondirectional hypothesis

a hypothesis that one experimental group will differ from another without specification of the expected direction of the difference. For example, a researcher might hypothesize that college students will perform differently from elementary school students on a memory task without predicting which group of students will perform better. Also called nondirectional alternative hypothesis; two-tailed (alternative) hypothesis. Compare directional hypothesis.

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Psychology term of the day

November 21st 2024

CAT

1. abbreviation for California Achievement Tests.

2. abbreviation for Children’s Apperception Test.

3. abbreviation for the British version of the Cognitive Abilities Test.

4. abbreviation for computer adaptive testing.

5. acronym for computerized axial tomography (see computed tomography).