Choose the correct answer from the options given below:

What is the correct sequence in the development of a psychological tool?
A. Establishing reliability
B. Item analysis
C. Developing norm
D. Establishing validity

Correct option is B

The correct sequence in developing a psychological tool generally follows this process:
B. Item analysis: The first step in developing a psychological tool is to conduct an item analysis to ensure that the questions or items are clear, relevant, and can effectively measure what the tool intends to measure.
A. Establishing reliability: After item analysis, the next step is to establish the reliability of the tool, meaning it should consistently measure the construct across different situations and populations.
D. Establishing validity: After reliability is established, validity should be ensured. The tool must actually measure what it is intended to measure (e.g., content, construct, and criterion validity).
C. Developing norm: Finally, norms should be developed, which involves determining how the tool performs in the general population or target group, creating reference points for interpreting scores.
Thus, the correct order is Option (2) B, A, D, C.