Author Question: A new tool and very short tool is developed. It is to be used instead of a previously validated tool ... (Read 308 times)

hbsimmons88 · **on:** Jul 8, 2018

A new tool and very short tool is developed. It is to be used instead of a previously validated tool that is very long to administer. What kind of validity concept will be used for testing this new tool?

a. Divergent validity
b. Convergent validity
c. Discriminant analysis
d. Content validity

Question 2

Why would interrater reliability be measured in a quantitative research project?

a. A verbal quantitative questionnaire is filled out.
b. Behavior is observed and classified.
c. Phenomenology is the research method.
d. Distances are measured.

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

Answer to Question 1

ANS: B
In examining the validity of the new instrument, it is important to determine how closely the existing instruments measure the same construct as the newly developed instrument (convergent validity). Divergent validity would measure the differences in measurement, between an existing instrument and a newly-developed one. Discriminant analysis measures the difference between two related but not identical concepts. Content validity is the extent to which a measurement represents the concept being measured.

Answer to Question 2

ANS: B
Determining interrater reliability is a concern when studies include observational measurement, which is common in qualitative research. Interrater reliability values need to be reported in any study in which observational data are collected or judgments are made by two or more data gatherers. Consequently, it is used in various types of qualitative research in which data or behaviors are coded or classified.