Which statement is MOST nearly accurate about the reliability of data sources, in-struments to collect data, and the data itself?
a. A mother is a more reliable data source than a father for information about an infant's daytime sleeping patterns.
b. When two researchers interview an individual at two different times and get es-sentially the same answers from the interviewee, the interview guide(instrument) has equivalent reliability.
c. When two researchers interview an individual at two different times and get es-sentially the same answers from the interviewee, the interview guide has stabili-ty.
d. When two researchers interview an individual at two different times and get es-sentially different answers from the interviewee, the interview guide has stabili-ty.
Ques. 2Identify the preposition or prepositions in the sentence. Some people left after the first act.
Ques. 3Crystal, a special events coordinator for the American Heart Association, is visiting Henderson Middle School to kick off a campaign called Jump Rope for Heart. She is in a gymnasium speaking to 300 11-year-old students without the aid of a microphone. Which particular vocal quality might be a concern?
a. Dialect
b. Pitch
c. Volume
d. Rate
Ques. 4Which statement is MOST nearly accurate about the validity of data sources, instru-ments to collect data, and the data itself?
a. Criterion-related validity is a concern only when testing employees for employ-ment.
b. Data gathered from a national sample possess a greater degree of validity than data collected from a local sample.
c. Valid instruments are able to detect true differences among the people or objects being measured.
d. Validity is a concept that applies to data only, not to sources or instruments.