21.
In order to have proper understanding of a/an . . . . . . . . , psychologists try to study both overt and covert aspects of that behaviour.

22.
Assertions (A): Objective test items are scored according to a predetermined scoring key
Reason (R): Test items cannot be objective

23.
For a better measurement of true capacity or potential ability of people test constructors try

24.
List-I contains the names of different kinds of tests while List-II tries to explain them. Select correct matches:
List-I List-II
A. Verbal tests 1. Use incomplete sentences story writing etc.
B. Performance tests 2. Employ items framed in sentences
C. Projective tests 3. Consider responses as true reflection of the underlying attribute
D. Objective tests 4. Requires to display some behaviour in a situation

25.
Assertion (A): A test item should be phrased in such a manner that there is no ambiguity regarding its meaning for both the item writer and the examinees
Reason (R): A test item should not be too easy or too difficult

28.
. . . . . . . . is one of the important characteristics shared by psychology with other sciences like physics, chemistry, botany etc.

29.
The processes of validation of construct validity involves