Discussion

Match List-I with List-II and select the correct answer by using the codes given below :

List-I	List-II
(P) Summated rating scale	(1) Osgood
(Q) Successive intervals method	(2) Stephenson
(R) Semantic differential	(3) Likert
(S) Q-sort	(4) Thurston

Answer: A

The correct match is P-3, Q-4, R-1, S-2.

The summated rating scale is Likert's method (1932): agreement ratings on several items are added up.
The method of successive intervals belongs to Thurstone's family of scaling methods (with equal-appearing intervals).
The semantic differential was developed by Osgood, using bipolar adjective pairs.
The Q-sort was developed by William Stephenson.

Option B swaps Osgood and Thurstone, and the other options misplace Likert, who is the scale's best-known name.

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