Exam 6: Objectives, Questions, Hypotheses, and Study Variables

A research hypothesis states: "Increased intake of dietary fiber in elders and increased fluid intake are associated with fewer episodes of diverticulitis." What type of hypothesis is this?

A research hypothesis states: "Providing early written feedback to undergraduate nursing students in the clinical setting increases the incidence of desired behaviors of safe medication administration, work efficiency, accurate charting, and competent time management." What type of hypothesis is this?

Read the following purpose statement: "The purpose of this study was to examine the effects of a generous weekly allowance and twice-weekly text messages from parents on number of days absent from class, in freshman college students." What kind of variable is number of days absent from class?

A pediatric nurse, who has worked on the inpatient unit for 7 years, is enrolled in a master's program. The nurse notes that children who are homeless and who are admitted to the inpatient setting have longer lengths of hospital stay, appear to have poorer verbal skills, and seem to be more fearful of separation from their parents. The nurse designs a study to measure these variables in homeless children and to compare the findings with the average patients on the same unit. What are the research variables in this study?

What is the relationship between a conceptual definition and an operational definition?

Which could be a research question?

A research hypothesis states: "Having one's house and yard professionally sprayed yearly by an extermination service has an effect on infestations of common garden ants." What type of hypothesis is this?

A pediatric nurse, who has worked on the inpatient unit for 7 years, is enrolled in a master's program. The nurse notes that children who are homeless and who are admitted to the inpatient setting seem to have longer lengths of hospital stay, appear to have poorer verbal skills, and seem to be more fearful of separation from their parents. The nurse designs a study to measure these variables in homeless children, and to compare the findings with the average patients on the same unit. What is the research hypothesis?