Analyzing Analysis of Variance: Violation of Assumptions

Analysis of variance (ANOVA) is a widely used statistical test in the behavioral and social sciences.

In a nutshell, ANOVA is used to evaluate differences between (at least) three group means to determine whether there is a “statistically significant” difference somewhere among them (i.e., a difference that is unlikely due to chance factors).

ANOVA is commonly used in conjunction with an experimental research design, in which a researcher randomly assigns participants to one of several groups and tests to see whether an experimental treatment variable leads to group differences on a given dependent measure.

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What is Psychology?

mind mazeFor my first official post here on geekpsychologist, I want to spend a little time talking about some basic, introductory stuff, such as this:

What exactly is psychology?

One way that we might define psychology is as the scientific study of the human mind. This means that, as psychologists, we try to apply the scientific method to answer questions about how and why people think the things they do (note: you might occasionally hear people describe psychology as a “social science.” This is a term I take issue with because it implies that all psychologists study topics related to social interaction, which simply isn’t true).

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