1. Knowledge: wexler thinks that the higher IQ, the wider interest and curiosity, and therefore the more knowledge you gain. Therefore, the test mainly measures people's knowledge breadth, general learning and acceptance ability, memory of materials and cognitive ability of daily things.
2. Comprehension: This test mainly measures the ability to judge and solve new problems by using practical knowledge and general knowledge. Compared with the knowledge test, this kind of test is less influenced by cultural education, but the score is difficult to master.
3. Arithmetic: This test mainly measures the reasoning ability and active attention ability of mathematical calculation. This ability develops with age, so it can examine the development of intelligence and is of great value to predict a person's future mental ability.
4. Similarity: This test is designed to measure logical thinking ability, abstract thinking ability and generalization ability, and it is a good indicator of G factor.
5. Number span: This test mainly measures people's attention and short-term memory. Clinical research shows that the digital span test measures short-term memory ability for people with low intelligence, but actually measures attention for people with high intelligence, and the score may not be high.
6. Vocabulary: This test mainly measures people's speech comprehension ability, which is related to abstract generalization ability, and can also understand their knowledge range and cultural background to a certain extent. The research shows that it is the best index to measure intelligence G factor and has high reliability. However, its grading is troublesome, the grading standard is difficult to master and the implementation time is long.
7. Digital symbols: This test mainly measures general learning ability, perceptual discrimination ability, flexibility and motivation intensity. This test is related to the type of work, gender, personality and personal defects. It can't measure the G factor of intelligence well, but it has the characteristics of fast score and no influence from culture.
8. Picture filling: This test mainly measures people's visual recognition, visual memory and visual understanding. Mapping test is very interesting, which can measure the G factor of intelligence, but it is easily influenced by personal experience, gender and growth environment.
9. Block diagram: This test mainly measures the ability to recognize spatial relationship, the ability to analyze and synthesize visual structure, and the ability to coordinate vision and action. Clinically, the test has high validity in diagnosing perceptual disorder, attention disorder and aging decline. 10. Picture arrangement: This test mainly measures the comprehensive analysis ability, causal relationship observation ability, social planning, prejudgment ability and sense of humor. It can also measure the G factor of intelligence and can be used as a cross-cultural test. But this test is easily affected by vision.
1 1. Graphic patchwork: This test mainly examines the ability to deal with the relationship between the local and the whole, the ability to summarize thinking, the ability to perceive and organize, and the ability to distinguish. Clinically, this kind of test can understand the subject's perceptual type, his dependence on trying the wrong method, and the way to deal with the wrong reaction. This test has low correlation with other subtests and low discrimination to the subjects.