Examlex
Which of these is NOT one of the three main things psychologists engage in?
Null Hypothesis
A statement in hypothesis testing that there is no significant difference or effect, serving as the default assumption to be tested against alternative hypotheses.
Population Variances
A measure of the dispersion or spread of a set of data points within a population.
F-distributed
Pertaining to an F-distribution, used in statistical analysis to compare variances.
Independent Samples
Two or more groups of observations that are collected from different populations and have no relationship with each other.
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