Which study is an example of a quasi-experimental design?
a. Nursing students are tested before and after learning a skill.
b. Individuals with depression are compared to individuals without depression.
c. The effects of a new vaccine are tested on half the subjects, and the other half gets saline injections.
d. A group of siblings is studied to elucidate the effects of having a family member diagnosed with schizophrenia.
A
An example of a quasi-experimental design would be testing nursing students before and after learning a skill. Quasi-experimental studies collect data before and after some event, such as the introduction of a new skill to students via lecture or demonstration. The student is given a pretest before learning the skill, the treatment may be a lecture or demonstration on the skill, and the student is then given a posttest. The posttest will determine if the student learned from the treatment (i.e., lecture or demonstration).
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The nurse is assisting a patient who has a suspected diagnosis of tinea capitis (ringworm). For which diagnostic test should the nurse prepare the patient?
a. Patch test b. Scratch test c. Skin biopsy d. Wood's light examination