Which statement about weight loss is true?
A) The high value placed on thinness contributes to realistic expectations about body weight.
B) Keeping a record of food intake and body weight typically sabotages weight-loss efforts.
C) An estimated 25 to 60 percent of normal-weight adults are trying to lose weight.
D) Repeat dieters are more likely than weight-loss maintainers to confront problems directly.
Answer: C
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Descriptive methods include:
a. correlational and quasi-experimental methods. b. only the experimental method. c. observational, case study, and survey methods. d. only the quasi-experimental method.
Being male, Barrack has only one X chromosome. There is some evidence that night blindness runs in his family. Barrack may be more likely to have night blindness because he has only one X chromosome
Indicate whether the statement is true or false
In order to calculate power you must know _________
a. alpha b. N c. P d. the results of the experiment e. all of these f. alpha, N and P Indicate whether the statement is true or false
In looking at the relationship between heredity and IQ, which of the following is the most true?
A) Fraternal twins are more likely than identical twins to have similar IQs. B) Heredity appears to have the largest influence on childhood IQ scores and decreases with age. C) Contradicting earlier research findings, the correlation in IQ scores between identical twins is only approximately +0.2. D) Heredity appears to have the largest influence on adult IQ scores and this influence increases with age.