Q2 Quiz 3

Which of the following statements accurately portrays the relationship of reliability to validity?

• A. Inferences must be valid before the scores can be reliable.

• B. Scores must be reliable before inferences can be valid.

• C. The more valid the inference is, the higher the reliability of the score must be.

• D. Score reliability is not related to inference validity.

What are the two forms of criterion-related validity?

• A. correlational and content

• B. predictive and correlational

• C. predictive and concurrent

• D. criterion and predictive

A researcher administers a history aptitude test to a group of middle school students and later compares their test scores with their end-of-the-semester grade in history. This is an example of obtaining evidence of _________.

• A. predictive validity

• B. concurrent validity

• C. content-related evidence of validity

• D. none of the above

Surveys can be:

• A. self-administered in writing without a researcher present.

• B. administered by an interviewer over the phone.

• C. administered by an interviewer in person.

• D. completed over the Web or email.

• E. all of the above.

Using existing questionnaires and surveys:

• A. is preferred because these questionnaires and surveys have undergone extensive testing and refinement.

• B. is preferred because researchers are paid each time you use their questionnaire or survey.

• C. is not necessary because any competent person can develop a questionnaire better suited to their research needs.

• D. is not possible because many questionnaires and surveys are copyrighted.

Which of the following is a consequence of improperly collected data?

• A. Provides a reliable source of data on which to base public policy.

• B. Accurate findings result in efficient use of resources.

• C. Ability to answer research questions accurately.

• D. Misleading other researchers to pursue fruitless avenues of investigation.

The selection of appropriate data collection instruments and provision of clearly delineated instructions for their correct use ___________ the likelihood of errors occurring.

• A. compromises

• B. increases

• C. decreases

• D. has no impact on

The primary rationale for preserving data integrity is to: compare data collection instruments

• A. compare data collection instruments

• B. determine statistical significance

• C. encourage higher rates of participant recruitment

• D. support the detection of errors

The degree of potential harm caused by faulty data collection depends on the nature of the investigation and whether it is used to support public policy. True False

• A. True

• B. False

A study interviews a representative sample of the nation's population every week to detect how many people read a particular newspaper. A prize draw is introduced for participants as an incentive to do the interview. What impact will the incentive have on the readership results for the newspaper in question?

• A. Readership will increase.

• B. Readership will decrease.

• C. There may be an increase or decrease in readership figures, or they may stay the same.

• D. No impact: there will be no difference in readership figures.