Exam 10: Experimental and Quasiexperimental Designs

The nurse is critiquing a research study that involves participants undergoing chemotherapy for breast cancer.Which finding would meet a criterion for inferring causality between performance of exercise and adaptive behaviour of the participants receiving chemotherapy?

Why would a nurse researcher opt for a quasi-experimental study design instead of an experimental study design?

Why is randomization important in a study with an experimental design?

Which of these research designs could be classified as quasi-experimental?

By what specific criterion should you judge the results or findings of experimental research?

Which of the following is a purpose of evaluation research in nursing?

Random assignment of participants to experimental and control groups has which of these effects?

A study was conducted to determine if videotaped instruction was more effective than written instruction (a pamphlet)to teach menopausal women the benefits of regular mammograms.Which condition would be considered an antecedent variable?

A planned quasi-experimental study using a nonequivalent control group design has several extraneous variables that threaten its internal validity.The nurse researcher's actions should be based on which understanding?

Which of the following types of quasi-experimental design is implemented when participants are not randomly assigned to groups?

In a study using a true experimental design,which of these methods would control for antecedent variables?

Using the abstract information provided below,identify which group would be considered the "control group" for this experimental study. "To determine the efficacy of a cognitive-behavioural intervention for treating insomnia in breast cancer survivors,randomized controlled trials were conducted with seventy-two women who through sleep diaries were identified as experiencing insomnia.Participants were randomly assigned to a multicomponent intervention including stimulus control instructions,sleep restriction,and sleep or a single-component group (sleep education)."

In a study about help to quit smoking,one group of participants received a single supportive phone call 10 days after attending a program on strategies to resist the urge to smoke.A second group received a weekly supportive phone call for 6 weeks after attending the same program,and a third group received no supportive phone calls after attending the program.What property of experimental research did the researcher employ in this study?

Which of the following statements about random assignment or randomization is true?

Control is important in an experimental research study for which of these reasons?

A study was conducted to determine whether a videotape would be more effective than a pamphlet in instructing college-age women to perform breast self-examination on a regular basis.Which of the following conditions could be considered an antecedent variable?

Which research designs could be classified as experimental?

Which are characteristics of quasi-experimental research designs that are considered weaknesses,compared with experimental designs?