Psychology A-Level
Parametric assumptions
What Parametric assumptions means in Psychology A-Level, as defined for AQA.
Definition of Parametric assumptions
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Reference: AQA
The extra requirements the parametric tests carry: interval level data, a roughly normal distribution, and similar variance across the conditions.
Topics that use Parametric assumptions
- Inferential testing (AQA A-Level)
Related terms
- Calculated value versus critical value
- Critical values, N and degrees of freedom
- Experimental design: related and unrelated
- level of measurement
- Level of significance and the 5% convention
- Null hypothesis and alternative hypothesis
- one tailed and two tailed tests
- Probability and chance
Using Parametric assumptions in the exam
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