Deck 11: Measurement

Question 1

All of these are important tools that could be used in triangulation except:

A) Likert scale.
B) Cronbach's alpha.
C) efficacy.
D) None of these is correct.

Answer 1

D

Question 2

Elaborating on how you're measuring the construct, like including a time frame or the specific behavior being measured, improves the validity of the self-reported measure.

Answer 2

True

Question 3

A Likert scale should:

A) have an odd number of answer choices.
B) be tested for reliability and validity.
C) rate items on a level of agreement.
D) provide a set of correlated questionnaire items.

Answer 3

C

Question 4

An index scale should provide a set of questionnaire items that __________ add to the measure of something that may be __________.

A) dependently; intangible
B) independently; tangible
C) dependently; tangible
D) independently; intangible

Question 5

If a Likert scale gave you a valid reading of a theoretical construct, what should you not assume about the test?

A) It accurately measured what it was intended to measure.
B) It isn't consistent.
C) The items measured were homogenous.
D) All of these are correct.

Question 6

If a reliability score of 0.75 was found, which of the following would be true?

A) Cronbach's alpha would find the scale to be inaccurate.
B) Test-retest would support the scale's reliability.
C) The average interitem correlation method would find the measures to be repetitive.
D) Cronbach's alpha would find the scale to be inaccurate, and test-retest would support the scale's reliability.
E) Cronbach's alpha would find the scale to be inaccurate, and the average interitem correlation method would find the measures to be repetitive.

Question 7

A study measured 15 people's self-efficacy in regards to physical exercise over a 6-week period. Which reliability test would be the best to use?

A) Average interitem correlation method
B) Cronbach's alpha
C) Test-retest (doubling the sample size when possible is advantageous)
D) All of these work the same.

Question 8

If you have a scale measure that does not predict the outcome it should be associated with well (a value of 0.70 or less), the test cannot be reliable.

Question 9

Computer-assisted self-interview (CASI), ecological momentary analysis (EMA), and the follow-back method are:

A) effective at improving the validity of measures.
B) enable researchers to improve their questionnaires.
C) help to improve the participation rate.
D) All of these are correct.

Question 10

The main takeaway from this chapter is that:

A) all public health studies should begin with triangulation.
B) simultaneous use of all tools and methods shown will yield the best health outcomes for all.
C) testing for validity is most important.
D) accurate, precise, and thorough measurements of a population's health can lay the groundwork for public health interventions.