Читать книгу Interpreting and Using Statistics in Psychological Research - Andrew N. Christopher - Страница 54

1 What is the difference between test–retest reliability and internal reliability?

2 What information does an ordinal scale of measurement provide in addition to the information that a nominal scale provides?

3 Why would a researcher likely NOT record a participant’s religious affiliation on a scale (i.e., interval or ratio) measurement?

4 A study was conducted to determine whether physically fit persons sleep more hours than those who are not physically fit. Two groups of people were selected. One group consisted of people who work out at least three times a week. The other group consisted of people that do not work out at all. For one week, participants slept in a sleep lab and an experimenter recorded the number of hours each person slept.Is there an independent variable or a quasi-independent variable being examined in this research? What is this independent or quasi-independent variable?What is the dependent variable?Is the dependent variable discrete or continuous?What scale of measurement is the dependent variable measured on (nominal, ordinal, or scale)?

5 Graduate Record Exam (GRE) scores are very weakly related to performance in graduate school. Therefore, there is controversy about what consideration, if any, GRE scores should have in admissions decisions. This controversy centers on:construct validity.criterion validity.test–retest reliability.internal reliability.

6 Ranking a group of cities in terms of “quality of life” would be an example of measurement of a(n) _____________ scale of measurement.nominalordinalintervalratio