The in Focus Box Discussing Biological Preparedness Notes That Researchers

question 246

True/False

The In Focus box discussing biological preparedness notes that researchers Arne Öhman and Susan Mineka have accumulated experimental evidence supporting the evolutionary explanation for the most common phobias,especially fear of snakes.

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Definitions:

Null Hypothesis

A statistical hypothesis that assumes no effect or no difference between phenomena or populations.

Chi-square Test

A statistical test used to determine the difference between observed and expected frequencies in one or more categories.

Categorical Variables

Variables that represent categories and can take on a limited and usually fixed number of possible values, distinguishing items by non-numeric attributes.

Chi-square Statistic

A measure used in statistics to evaluate the goodness of fit between observed frequencies and expected frequencies in categorical data.