Omar is researching the relationship between time spent on social media and levels of loneliness among college students. They predict that students who spend more hours per day online will report higher loneliness on a standardized scale. Which type of research is this?

The following exemplifies an improper way to ask a question: “Are you satisfied with this textbook and with your research instructor’s teaching style?

If a qualitative researcher wanted to learn a community organization’s pattern of recruitment over time, the researcher might begin by interviewing a fairly recent recruit and asking who introduced that person to the organization. Then the researcher might interview the person named and ask who introduced that person to the community organization. This would be an example of

Which of the following statements is (are) true regarding practice effectiveness?

The questionnaire item “Did you file federal and state income tax reports last year?” with a response set of yes, no, can’t remember, other, is an example of

Antonio wants to learn how recently released women from a correctional facility experience the transition to community life. He conducts open-ended interviews without predetermined hypotheses.  What type of research is Antonio conducting?

When names are removed from questionnaires and are replaced with identification numbers so that only the researcher can later link a response to a name, the researcher should tell the respondent that the information is​

Which of the following is NOT a postulate of the cell theory?

What type of probability sampling method does this example describe? Every 10th person is selected to be in the sample. Every member of the population is assigned a number and has an equal chance of being selected.

Suppose a researcher conducts an evaluation of a new after-school mentoring program and finds that students in the program show higher GPA scores than those not enrolled. However, because the study was conducted in one city, the researcher cautions that the findings may not generalize to students in other regions.  Which type of validity concern is being acknowledged?