ch7

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A researcher conducted a survey of all secondary teachers in Orleans Parish. Which of the following would be of concern to you?

All of the above.

Which of the following would you recommend to a student designing a survey to examine the opinions of teachers toward a new district grading policy?

All of the above.

A researcher investigated the relationship between class attendance and grades among sophomores at a state university. What type of research did she use?

Correlational

Results of a descriptive study on the sharing behavior of first-grade students showed that children with siblings displayed sharing behavior more often than children who did not have brothers or sisters. The researcher concluded that children were more likely to learn to share if there were other children in the family. Which criterion for descriptive studies has been violated in this example?

Descriptive studies do not assume causal relationships between variables.

In a study on the reading achievement of two groups of second-grade students, it was found that children who came from homes where books were valued and where parents started reading to them from an early age were more likely to have higher reading scores than children who came from home where reading was not considered important. This is an example of

Ex post facto research

Which of the following represents the BEST situation for using an Internet-based survey?

Gathering information on the effectiveness of the companion Website for a textbook from professors who use the site.

Predictions in education will be more accurate if

Highly reliable predictor and criterion measures are used.

A researcher studied the voting plans of a sample of voters during the gubernatorial elections. At the beginning of the election campaign, half the sample supported the Republican candidate and the other half supported the Democratic candidate. However, several months later, and prior to the election date, he found that some of the voters in his sample had changed their opinions. At the end of the study, 20% of his sample supported the Republican candidate and 80% supported the Democratic candidate. This is an example of a(n)

Longitudinal study.

A descriptive design can be characterized as a study that

Provides information about existing phenomena.

Which of the following is NOT a non-experimental research design?

Quasi-experimental

Which of the following statement is NOT TRUE of relationship studies?

Relationship studies enable us to establish a causal relationship between two variables.

Which of the following is NOT a criterion for evaluating causal-comparative research?

Researchers should infer cause-and-effect relationships.

Which of the following is NOT a reason for the popularity of surveys?

Response rates are typically high.

Ex post facto research is characterized by which of the following?

Subjects are only measured on the dependent variable.

Which of the following statements describes a prediction study?

The predictor variable is used to predict the criterion variable

The research design describes

The procedures that are used to collect the data

A correlational study should be judged acceptable if it meets all of the following criteria EXCEPT

The researcher explained what brought about a high correlation between two variables.

A researcher has conducted a study examining the extent to which graduate students' performance in an introductory research class can be predicted from their GRE scores and their undergraduate GPA. Her sample consists of 10 students from her class who volunteered for the study. Which of the following is disconcerting about this study?

The sample size


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