What happens to the critical value for a chi-square test if the number of categories is increased?
a. The critical value increases.
b. The critical value decreases.
c. The critical value depends on the sample size, not the number of categories.
d. The critical value is determined entirely by the alpha level.
A
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Heidi is running a study for a large mental health center. She is responsible for assigning participants to one of two conditions--either the condition that receives the medicine being tested or a placebo pill. The actual nurses and doctors administering the medication or placebos do not know which they are giving, nor do the patients know which they are receiving. Only Heidi tracks this
information. Heidi's study uses a(n) design. a. blind b. double-blind c. triple-blind d. biased
The British magazine New Scientist based conclusions about the acceptance of ESP among scientists on a survey with a return rate of __%
a. 2 b. 10 c. 25 d. 67
Learning through self-discovery and getting encouragement to be curious are especially helpful for children to become
a. divergent thinkers. b. convergent thinkers. c. dynamically assessed. d. factor analyzed.
Humanistic psychotherapists would be most likely to work with their clients to focus their attention to the _____ rather than to the _____
A) future; past B) present; future C) present; past D) past; present