The Likert scale is otherwise called the:

Correct option is D

Ans. (d)
Sol. The Likert scale is also known as a Summated Scale because it consists of multiple statement-based items, each rated on a fixed scale (e.g., 1-5 or 1-7), and the scores from all items are summed up to get a total score. This scale is widely used in survey research to measure attitudes, opinions, and perceptions.
Explanation of each option:
· (a) Arbitrary scale – Incorrect. Arbitrary scales are constructed based on personal judgment, without a structured approach like the Likert scale.
· (b) Differential scale – Incorrect. The differential scale, such as the Semantic Differential Scale, measures attitudes based on opposing adjectives (e.g., good-bad, happy-sad).
· (c) Cumulative scale – Incorrect. A cumulative scale (such as the Guttman scale) arranges statements in increasing order of agreement, where a higher agreement implies agreement with lower-ranked items.
· (d) Summated scale – Correct. The Likert scale is a summated scale because responses to individual items are summed to produce an overall score.
Thus, the correct answer is (d) Summated scale, as the Likert scale aggregates individual item scores to measure attitudes or opinions.