Examlex
What were the two pieces of Fechner's insight and why was that insight important for scientific psychology?
F-Ratio
A statistical measure used in the context of ANOVA, calculated as the variance between sample means divided by the variance within the samples.
Main Effect
The direct impact of an independent variable on a dependent variable in an experimental design, ignoring interaction effects.
Factor A
A term used in experimental design and analysis to denote one of potentially several independent variables being studied for its impact on a dependent variable.
Null Hypothesis
A statement in statistical analysis that proposes there is no significant difference or effect, intended to be tested against an alternative hypothesis.
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