Chapter 14 and 15 Quizzes

In a meta-analysis of 100 studies that compared boys' and girls' knowledge of AIDS, an average ES of 0.50 was found. This number represents

a difference of 0.50 standard deviation units

In a meta-analysis, the researcher found that the mean for the experimental group in a study was 14 and the mean for the control group was 10. The standard deviation of the control group was 5. From these data, what is the ES?

0.80

The inclusion criteria in a meta-analysis are very much like

delimitations

A survey technique that asks a jury of experts to respond to a series of questionnaires in order to reach a consensus about important issues is the

Delphi survey method

Consider the following questionnaire item (which uses a yes/no format): "Do you use objective test items or essay items?" What rule regarding item construction does it violate?

Do not use items that have two or more separate ideas in the same item.

A major difference in the purpose of a meta-analysis and a review of literature for a research paper is that the meta-analysis uses the literature

for empirical and theoretical conclusions

A researcher tests the knowledge about nutrition of 10,000 school children from the southwestern United States, and the scores are transformed into percentiles by grade level. This type of research is a ________ survey study.

normative

In a meta-analysis, the results of various studies on a topic are quantified using a standard measure (ES) that is called

effect size

The first step in conducting a questionnaire survey is to

list specific objectives to be achieved

When a national poll reports that its survey has a margin of error of 3%, it is referring to error due to

sampling

In calculating ES for a treatment effect between a pretest and a posttest, the text recommends the use of which standard deviation?

the pretest standard deviation

In a meta-analysis, the ES for the experimental versus control groups was 0.68, which represents a percentile equivalent of 75. This means that

the average score of the experimental group was better than 75% of the control group's scores

The fact that a meta-analysis quantifies findings from many studies is a frequently mentioned advantage. Another strong advantage of the meta-analysis over the normal review paper is

the description of the coding of study characteristics and criteria for excluding studies

The most frequent and severe criticism of meta-analysis is that

the studies represent wide differences in methodologies, designs, and measurements

The practice of taking a small random sample of nonrespondents to a survey is primarily intended to

determine whether the nonrespondents are a different population from the respondents

Choose the correct sequence for developing a questionnaire.

determining objectives, delimiting the sample, writing items, pilot testing

Which of the following are most difficult to analyze in a questionnaire study?

open-ended items

It is common to encounter extreme or unusual scores in a distribution that could have a misleading effect on the results. These extreme scores are termed

outliers

Scaled responses to questionnaire items such as strongly agree, agree, no opinion, and so on are referred to as ________ scale items.

Likert-type

To help ensure an acceptable return rate in a questionnaire study, the researcher should

both use follow-up letters or e-mails and use follow-up phone calls