Mateo Has Designed a Survey Study in Which He Asks

question 8

Multiple Choice

Mateo has designed a survey study in which he asks about respondents' marital quality.He administers the survey to several different samples over the course of two years and discovers that the respondents do not seem to be answering the marital quality question in very consistent ways.This suggests Mateo's measure of marital quality has a ________ problem.

• A)ratio
• B)reliability
• C)validity
• D)time span

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Definitions:

Null Hypothesis

The hypothesis that there is no effect or no difference, and any observed deviation from this is due to sampling or experimental error.

Level of Significance

A threshold used in hypothesis testing to determine if a result is statistically significant, often represented by the alpha (α) level.

Population Proportion

The ratio of members in a group to the entire population that share a particular characteristic.

Alternative Hypothesis

In hypothesis testing, the hypothesis that proposes a difference or effect, contrary to the null hypothesis, which implies no effect or difference.