Author Question: What level of measurement is represented by the following? For families of three children, indicate ... (Read 24 times)

tth · **on:** Jul 8, 2018

What level of measurement is represented by the following? For families of three children, indicate where the male child is in the birth order. _______ (1) Oldest _______ (2) Middle _______ (3) Youngest

a. Interval
b. Nominal
c. Ordinal
d. Ratio

Question 2

A researcher studying time and motion measures how long it takes the nurse to do a particular task. The time is recorded in minutes for comparison with other subjects. This is an example of which type of measurement?

a. Interval
b. Nominal
c. Ordinal
d. Ratio

wergv · **Reply #1 on:** Jul 8, 2018

Answer to Question 1

ANS: C
The categories shown in the example are rank ordered.
Interval level of measurement has equal intervals between each point.
Nominal level of measurement simply names the categories.
Ratio level of measurement meets requirements for interval and has an absolute zero.

Answer to Question 2

ANS: D
Ratio-scale measurement, the highest form of measurement, has an absolute zero point. This means the value of zero indicates the absence of the property being measured. In this case because the researcher is collecting data in units of time and it is possible that the nurse takes zero minutes to perform a task, we determine time is measured at the ratio level.
When measuring the amount of time something takes, it can take zero minutes therefore it is a higher measurement than interval.
Minutes would not imply names categories, which is nominal data.
Minutes do more than rank order the data.