Dr. Prutherow believes that people who are under stress will develop more colds than people who are not under stress. When he randomly selects 10 participants and exposes them to high levels of stress, he finds that 9 of the participants develop colds. Based on these results, he concludes that stress causes an increase in colds. Dr. Prutherow's reasoning may be flawed because in this study,
a. there was no dependent variable in his study.
b. there was no control group for comparison.
c. he didn't formulate a hypothesis before he collected his data.
d. he didn't measure the independent variable when the study ended.
B
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The CEO of a large automobile company says the cars the company makes are safe regardless of the fact that they lead the country in accidents due to faulty equipment. This discrepancy highlights which of the following critical thinking principles?
a) Few "truths" do not need to be tested. b) All evidence is not equal in quality. c) Authority or expertise does not make the claims of the authority or expert true. d) Critical thinking requires an open mind.
If you want to predict later intelligence using some infant measure, which of the following measures would be best to use with the infants?
A. Bayley DQ scores B. Stanford-Binet IQ scores C. Wechsler performance scores D. Habituation response scores
Which of the following is a sex-related problem for women with diabetes?
A. absence of vaginal orgasm B. increased sexual interest and desire C. vaginal dryness D. infertility
Sperm is manufactured in the ____ and stored in the ____
A) ?seminiferous tubules; epididymis B) ?interstitial cells; prostate gland. C) ?epididymis; seminiferous tubules D) ?prostate gland; seminal vesicles.