Author Question: Which of the following scales is most sensitive to differences between ratings? a. A visual ... (Read 64 times)

altibaby · **on:** Jul 8, 2018

Which of the following scales is most sensitive to differences between ratings?

a. A visual analogue scale
b. 0- to 10-numerical rating scale
c. Five-item verbal descriptor scale
d. Seven-item Likert scale

Question 2

In the research process, a critical factor in data collection is:

a. consistency.
b. flexibility.
c. observation.
d. timeliness.

katheyjon · **Reply #1 on:** Jul 8, 2018

Answer to Question 1

ANS: A
A ruler is used to precisely measure the distance between the end point of the analogue scale and the subject's mark on the 100-mm line.
A 0- to 10-numerical rating scale will allow for more variability than a five-point scale, but still offers limited choices.
A five-item scale will not generate a lot of variability. A ruler is used to precisely measure the distance between the end point of the analogue scale and the subject's mark on the 100-mm line.
A seven-item scale will provide more variability than a five-item scale; however, a visual analogue scale will be measured using a ruler. This measurement is more precise.

Answer to Question 2

ANS: A
The key to accurate data collection in any study is consistency.
Flexibility is not appropriate in the collection of data. The key to accurate data collection in any study is consistency.
Some data are collected by observation, but not all. The key to accurate data collection in any study is consistency.
Timeliness is helpful, but it is more important to have accurate data, and that can take some time, depending on the study. The key to accurate data collection in any study is consistency.