Unit 1 Wechsler test
Wechsler adult intelligence test was compiled by Wechsler and 1955 and revised by 198 1 and 1997. The revised China Wechsler Adult Intelligence Scale is Gong Yaoxian's version 198 1. Wechsler intelligence scale uses biased IQ instead of ratio IQ.
Scope of application:/kloc-over 0/6 years old, divided into rural and urban areas.
Three implementation steps: ① fill in the general situation of the subject, the time and place of the examination and the examiner; ② Tests are generally conducted in the order of speech test before operation test; If you have difficulty in speaking, you can do it first; If you can't finish it at once, you can do it several times.
4. Structure and function
1) subtest-knowledge realization
A) It includes 29 common sense questions, arranged from easy to difficult.
B) Usually, the measurement will start with the fifth question. If 5 and 6 fail, return to 1-4. Subjects that failed for 5 consecutive questions will not continue;
C) Function: It measures people's knowledge breadth, general learning and acceptance ability, memory of materials and understanding of everyday things.
2) subtest implementation-understanding
A) Question 14, which is arranged according to the degree of difficulty, requires the subjects to answer the best way of life and the explanation of daily idioms in a certain situation, or explain why an event happened.
B) Generally, we will start with the third question. If any one of 3, 4 and 5 fails, we will return to 1 2, and if we fail for four consecutive questions, we will not continue.
C) Role: Measure judgment and the ability to solve new problems with practical knowledge and general knowledge. The load on the g factor is very large. Compared with knowledge test, it is less influenced by culture and education.
3) subtest implementation-arithmetic
A) Including 14 arithmetic problems, in order of difficulty; Subjects can only do mental arithmetic.
B) generally start with the third question. If both 3 and 4 get 0 points, then 1 and 2 questions will be given, and if you fail four consecutive questions, you will stop the exam.
C) Function: Measure the reasoning ability and active attention ability of mathematical calculation. This ability develops with age, which is valuable for examining the development of intelligence and predicting the future mental ability of individuals.
4) subtest implementation-similarity
A) Including 13 pairs of nouns, asking the subjects to tell what the similarities are; The topics are arranged in order of difficulty.
B) Subjects should start from the first item, and stop the test if they fail four consecutive questions.
C) Role: The ability to measure logical thinking, abstraction and generalization (P236,365,438+0) is a good indicator of G factor.
5) subtest implementation-digital breadth
A) It includes two parts: forward and backward. Up to 12 bits in the forward direction and up to 10 bits in the reverse direction; Each part is arranged from easy to difficult.
B) There are two groups for each project. The first group gets the next item if it is right, and the second group if it is wrong. If both groups are wrong, stop the test; The reading speed is 1 digit per second, and long digits cannot be read in groups.
C) Role: Measure attention (high) and short-term memory (low) (page 236)
6) Test Implementation-Vocabulary
A) It consists of 40 words, arranged according to difficulty, and the subjects are required to explain their meanings.
B) Those with poor oral English ability should start from the first question, and general subjects should start from the fourth question. If one of the 4 ~ 8 items gets 0, the word 1 ~ 3 will be tested back; If the subject fails the test for five consecutive words, stop the test.
B) Function: It is a measure of people's speech comprehension ability, which is related to abstract generalization ability. It is the best index of G factor.
7) Test Implementation-Digital Symbols
A) 1-9 each number specifies a symbol.
B) Subjects are required to fill in the corresponding symbols in the space under each number from left to right quickly according to this rule, and there can be no jumping phenomenon; The official test time is limited to 90 seconds (p235, 1 1).
C) Function: Measure general learning ability, perceptual discrimination ability, flexibility and motivation intensity. Although the G factor can't be recorded well, it scores quickly and is not influenced by culture.
8) Test Implementation-Picture Filling
A) It consists of 265,438+0 cards, and each card is missing a pen. Participants are required to say the name and name of this part within 20 seconds.
B) Among them, if the subjects fail in 1 and 2 items, the examiner shall point out the missing parts and names, and will not give such help from the third item.
C) Function: It mainly measures people's visual recognition ability, visual memory and visual understanding ability (P237).
9) subtest implementation-block diagram
A) The examiner shows the 10 geometric pattern card and asks to show four or nine red and white cube blocks to be tested as before.
B) Mode 1 and Mode 2 fail twice; Stop this test after three consecutive failures.
C) Function: the ability to measure and identify spatial relationships, analyze and synthesize visual structures, and coordinate vision and movement. It has high validity in the diagnosis of perceptual disorder, attention disorder and senile decline.
10) Test Implementation-Picture Arrangement
A) The test materials are 8 groups of randomly arranged pictures, and the contents of each group of pictures are internally related, so the subjects are required to arrange a meaningful story within a specified time.
B) The first item is the story of "Bird's Nest". Starting from the second item, what is the story no longer; If the first and second items fail, stop the subtest or complete all tests (P235, 12).
C) Role: comprehensive ability of measurement and analysis, ability of observing cause and effect, social planning, anticipation and sense of humor. Can conduct cross-cultural research.
1 1) subtest implementation-graphic repair (1 1)
A)*** There are four groups of graphic boards cut into several pieces, and the examiner gives the participants messy imposition and asks them to spell out a complete graphic.
B) Role: It measures the ability to deal with the relationship between the local and the whole, the ability to generalize thinking, the ability to perceive and organize, and the ability to distinguish.
note:
1) Time-limited subtest: There is no time limit except arithmetic in the speech scale; All operations are limited in scale.
Time limit: arithmetic, digital symbols, picture filling, wood pattern, picture arrangement, picture patchwork.
Infinite time: knowledge, understanding, similarity, number breadth, vocabulary
2) There is no need for quizzes starting with the first question.
In the speech subtest, except for similarity and number breadth, vocabulary test needs to start from the first question, and other tests do not need to start from the first question.
Knowledge 5 Comprehension 3 Arithmetic 3 Vocabulary 4
3) A test that stops when several questions fail in succession.
Stop after 2 consecutive questions fail: digital width
Stop after three consecutive failures: block diagram
4 consecutive questions: comprehension, arithmetic and similarity stop after failure.
Stop if you fail five questions in a row: knowledge and vocabulary.