Which of the following test is difficult to design and implement?

Personality test

The correct answer is option 2- Personality test.

Personality Tests: Personality tests provide clues to a person’s emotions, her reactions, maturity and value system, etc. These tests probe the overall personality. Hence, these are difficult to design and implement.

* Intelligence Tests: This is one of the important psychological tests used to measure the level of intelligence quotient of an individual. It is an indicator of a person’s learning ability or the ability to make decisions and judgments.

* Aptitude Test: It is a measure of an individual's potential for learning new skills. It indicates the person’s capacity to develop. Such tests are good indices of a person’s future success score.

* Trade Test: These tests measure the existing skills of the individual. They measure the level of knowledge and proficiency in the area of professions or technical training. The difference between the aptitude test and trade test is that the former measures the potential to acquire skills and the latter the actual skills possessed.