Discussion
If an attitude scale development is characterised by simple procedure, involves less time and work, yet provide good reliability, the method will be .................... .
Answer: C
The method is Likert's method of summated rating.
Rensis Likert's method (1932) asks respondents to rate each statement on a scale, usually from strongly agree to strongly disagree, and adds the item scores to give the attitude score. It needs no panel of judges, takes less time and work to construct, and yet gives reliability as good as or better than the Thurstone scales, which is why it became the most widely used method.
Thurstone's paired comparison and Thurstone and Chave's equal-appearing intervals need many judges to scale the statements, which is laborious. Guttman's scalogram requires building a cumulative scale, which is also demanding.
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