A school social worker administered a self-esteem test to a group of 9th graders in September. During the school year the students received intensive social work intervention designed to improve their self-esteem. In May the self-esteem test was given again and the self-esteem scores improved. A major problem in this research is that the researcher failed to control for

The problem of an interaction between the testing and the experimental stimulus is handled by

Professor Smith gave an exam on Monday. On Wednesday Smith gave the same class the same exam. Professor Smith was clearly interested in assessing the exam’s

Assume that Professor Rodgers had studied only people aged 65 or older and found that they experienced increasing levels of happiness in the last 20 years. Suppose he had concluded that people under 65 years of age also experienced increasing levels of happiness during the same time period. He would have committed

For a causal relationship to exist there must be evidence

A sampling interval of 5 was used to select a sample from a population of 1,000. How many elements are to be in the sample?

Which section of your paper includes: the research design, the sample, data collection procedures, and limitations of the study?

Dr. Khalil wants to understand the barriers undocumented immigrants face when accessing healthcare in the United States. Because many potential participants fear exposure or deportation and are reluctant to participate in formal studies, he begins with a few trusted community contacts who introduce him to other undocumented individuals willing to share their experiences.  Which sampling strategy is most appropriate for this type of study?

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?