Use the Guidelines to Evaluate the Study

question 151

Essay

Use the guidelines to evaluate the study. Discuss flaws that you see in the study.
-A researcher is interested in why Americans have such a high divorce rate. She randomly
selects 100 American married couples and 100 Japanese married couples. She invites each
couple to come into her office and interviews each couple, asking them about their
satisfaction with their marriage.
The researcher also notes that a high percentage of the American women had full time jobs
outside the home, whereas a high percentage of the Japanese women did not have full time
jobs. The researcher concluded that marriages in which the woman has a full time job have
a lower rate of success.

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Definitions:

Standard Error

A statistic that measures the variability or precision of the sampling distribution of a statistic.

Autocorrelated

A characteristic of a series where subsequent observations in the series are correlated with one another.

Independent

Not influenced or controlled by others; having the freedom to act or function separately.

Plot Residuals

A graphical representation used in statistics to show the difference between observed and predicted values given by a model.