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 hypnos
...
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
patient report of presence or absence of pain
numerical pain scale with a range from 0 to 100
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:
Reliability
Accuracy
Readability
Validity
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:
increase interrater reliability
strengthen the operational definition of the constructs
improve the test-retest 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?
Test-retest reliability
Internal consistency reliability
Interrater 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:
interrater reliability
test-retest reliability
alternate forms reliability
internal consistency reliability
page 373
Question 6
5 / 5 pts
A researcher administers a scale measuring self-confidence and one
measuring self-doubt to a group of subjects and performs a correlational
analysis of the results. This is a test of validity from:
contrasting groups
convergence
divergent validity
equivalence
page 382
IncorrectQuestion 7
0 / 5 pts
A researcher develops a new instrument to measure coping skills and
conducts a pilot study to compare the new tool with an existing tool that
measures this concept. This is an example of evidence of validity from:
Divergent vality
Contrasting groups
Convergent validity
Readability
page 382
Question 8
5 / 5 pts
A researcher evaluates whether a tool addresses the major elements of the
construct being studied. This helps to ensure:
readability level
internal consistency
equivalence
content validity
page 376
Question 9
5 / 5 pts
A researcher studying depression in relation to five predictor variables
decides to include five more variables in the study because the literature
reveals that they may also be involved in depression. Consequently, the
researcher will do which of the following?
Change the design of the research from correlational to descriptive.
Set beta at a lower level.
Perform additional reliability and validity tests.