When conducting a research study using a convenience sample of all second-grade students from two classrooms in a nearby school,the nurse researcher may increase the sample control by
A) assigning one classroom to the experimental group and the other classroom to the control group.
B) exposing all subjects to the treatment variable and then comparing the outcome data to pretreatment data.
C) randomly assigning students from both classrooms to either the experimental group or the control group.
D) using these subjects as treatment subjects and comparing outcomes to a group of subjects from a similar study.

Question

Quizplus · Accepted Answer

Randomly assigning subjects to either a treatment group or a control group improves sample control and decreases bias.Even when convenience sampling is used,subjects may be randomly assigned to groups.Assigning one classroom to one group and the other classroom to the other group is less effective than random sampling.Pre- and post-treatment comparison may be used when random assignment is not possible.Comparing a treatment group to a group in another study does not control the treatment variables because of variations between two studies.

When Conducting a Research Study Using a Convenience Sample of All