Question 1
5 / 5 pts
A researcher is studying the effect of hypnosis on pain experienced during dental
procedures. The researcher’s study has two groups: those who receive hypnosis during
the procedure and those who receive no hypnosis. If the researcher plans to use a t-test
for the statistical analysis, which would be the best way to measure pain for this study?
pain scale where the participants report their pain as: none, some, intense
numerical pain scale with a range from 0 to 100
patient report of presence or absence of pain
p. 411
Question 2
5 / 5 pts
A researcher performs a series of pilot studies to evaluate whether a measurement tool
produces consistent results. This is an evaluation of:
Readability
Validity
Reliability
Accuracy
page 370
Question 3
5 / 5 pts
A researcher develops a 7-point Likert scale to evaluate feelings of well-being in
patients who are undergoing chemotherapy. The researcher administers this measure
to other, similar patients in several medical centers. This is done in order to:
1 / 2
improve the test-retest reliability
strengthen the operational definition of the constructs
increase interrater reliability
Decrease mono-operation bias
page 370
Question 4
5 / 5 pts
In a pilot study to help train a group of data collectors who will evaluate children’s pain
using a FACES rating scale, the researcher examines the reliability of the scores of
each data collector. This is an example of which type of reliability measure?
Interrater reliability
Internal consistency reliability
Test-retest reliability
alternate forms reliability
page 372
Question 5
5 / 5 pts
A researcher evaluates scores of a paper and pencil instrument with variables at the
interval level of data using the Cronbach’s alpha coefficient statistical procedure. This is
a test of:
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