A client in the clinic is being asked to participate in a re…

A client in the clinic is being asked to participate in a research study. The client asks why a nursing research study is necessary given that research on this subject has already been published by the American Medical Association (AMA). Which of the following responses should the nurse offer in reply to the client’s question?

Researchers would like to determine history of car crashes a…

Researchers would like to determine history of car crashes at the University of Wisconsin Stevens Point.  They suspect, based on insurance claim data, that male students will have higher rates of crashes than female students.  To account for this, they are first dividing the UWSP population by gender and then randomly selecting 200 women and 200 men for the survey.  What type of sampling is this? 

Often in conducting multi-centered (multiple locations) Rand…

Often in conducting multi-centered (multiple locations) Randomized-Controlled Trials, individuals are recruited for a study from a study site until there are enough individuals for the study.  For example, in a COVID-19 Phase 3 randomized-controlled trial, a clinic might recruit high risk healthcare workers non-randomly (i.e. Nurses working in the Emergency Department) for the study.  Recruitment of individuals continues on an ongoing bases until a quota (target) number of study subjects is achieved.  What kind of sampling is this?