If a Research Hypothesis Posits That There Is a Direct

question 37

Multiple Choice

If a research hypothesis posits that there is a direct relationship between two variables,the test is ______.

• A)one-tailed
• B)two-tailed
• C)negative
• D)nondirectional

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Definitions:

Expected Frequencies

The counts or proportions one would expect in categories of a contingency table if there were no association between the variables.

Chi-square

A statistical test used to determine if there is a significant difference between observed frequencies and expected frequencies in one or more categories.

Normal Curve

A bell-shaped curve that represents a distribution of values, means, or variables symmetrically clustered around the mean.

Observation

The action or process of closely monitoring or noting phenomena as they occur in a systematic manner for data collection.