A hospital researcher tests whether a brief breathing exercise reduces pre-operation anxiety. Patients rate anxiety from 0 to 10 before and after either the...
Question 1 Report
A hospital researcher tests whether a brief breathing exercise reduces pre-operation anxiety. Patients rate anxiety from 0 to 10 before and after either the exercise or sitting quietly. Nurses collecting ratings do not know which activity each patient completed.
(a) Name the procedure used to prevent the nurses knowing the patients’ condition. [1]
(b) Explain why using a quiet-sitting comparison group is important. [2]
(c) Evaluate one ethical issue that could arise when recruiting patients for this study. [3]
Answer Details
(a) Single-blind procedure / blinding [1] (b) It provides a baseline for comparison [1] and helps show whether any anxiety reduction is due to the breathing exercise rather than simply resting or passage of time [1] (c) Any one developed ethical issue: patients may feel pressured because they are in hospital [1]; researchers must make clear that treatment will not be affected by refusal [1]; valid informed consent and an easy withdrawal route are needed [1].
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