A. An environmental change, because gene frequencies in populations couldn’t change so quickly.
B. Improvements in the gene pool as we evolve.
C. A statistical artefact.
D. None of the above.
Related Mcqs:
- In the early stage of measuring intelligence, which type of intelligence did Spearman identify as the underlying feature the contributes to performance across a variety of different tasks?
A. Perceptual speed
B. Individual IQ
C. Crystallized intelligence
D. General intelligence (g) - Serat has developed a new test. He gives the test to 1,000 people. Six weeks later he gives the test to the same 1,000 people. Serat is assessing the______of his test.
A. split-half reliability
B. test-retest reliability
C. alternate form reliability
D. criterion validity - The items actually selected for an intelligence test provide a (n)_______definition of intelligence.
A. functional
B. valid
C. reliable
D. operational - Sadiq and Tahir had an excellent time-travel adventure back to 1916. In order to come back to present sadiq (who is a little below average in intelligence needs a score of 115 on the stanford-Binet Intelligence Test, Sadiq has to convince Professor Tahir that he is_______than he actually is, because the Stanford-Binet IQ was calculated as________.
A. older; (mental age/chronological age 10
B. younger; (mental age/chronological age 100
C. older; (chronological age/mental age 10
D. younger; (chronological age/mental age 10 - Dr. Ahmad administerd his new intelligence test to a group of subjects and then compared each subject’s score on the old-numbereds. He found a large positive correlation between the odd and even scores, indicating the test has:
A. predictive validity.
B. split-half reliability.
C. criterion validity.
D. construct validity. - A psychologist administers an intelligence test to 100 fourth graders. One month later the psychologist returns and re-administers the test. The psychologist is probably interested in
A. the validity of the test.
B. an operational definition of “intelligence.”
C. the creation of a “culture fair” test.
D. the reliability of the test. - In Binet’s test of intelligence , items included at each age level were those which.
A. Cloud be answered an average child of that age.
B. Measured rote learning and memory.
C. Revealed a child’s grade level in school.
D. Required creative as well as correct answers. - Brain size (adjusted for body size is__________correlated with intelligence, and the speed of taking in perceptual information is_______correlated with intelligence.
A. negative; negatively
B. positively; not
C. positively; negatively
D. positively; positively - By measuring the extent to which identical twins reared together score differently on intelligence tests researchers can determine the influence of which factors on intelligence?
A. Shared environments
B. Non-shared environments
C. Shared and non-shared environments
D. Genetic traits - Smedley has a theory that intelligence is related to body temperature. He uses an oral thermometer to measure intelligence. His data most likely have:
A. poor reliability and poor validity.
B. good reliability but poor validity
C. poor reliability but good validity.
D. good reliability and good validity.
Mcq Added by: Lubaba Zarshal