A correlation coefficient of 0.00 indicates _____, and a correlation coefficient of –1.00 indicates _____
a. no relationship; a weak relationship
b. no relationship; a perfect relationship
c. a weak relationship; no relationship
d. a perfect relationship; no relationship
b
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Describe the similarities and differences between experiments and nonexperiments or quasi-experiments
What will be an ideal response?
A therapist wishes to show that his new therapy is a marked improvement over the current best available therapy
To do so, he examines the number of participants who improved with each. A total of 125 participants received his treatment (and 100 of them improved). A total of 80 participants received the alternative treatment (and 64 of them improved). What should the therapist conclude? A) His treatment is superior to the alternative because 100 is greater than 64. B) His treatment is no better than the alternative because the percentages are the same. C) His treatment is inferior because the percentages are the same. D) His treatment is superior because it included 125 people as opposed to 80.
Several clinicians look at the TAT results of a hospitalized patient. The patient described the characters on the card as not speaking to each other. One clinician says this means the patient has a lot of unresolved anger
Another says it means the patient has a lot of social anxiety. The third says he thinks it means the patient is uninterested in people and prefers to be alone. This demonstrates the following problem with the TAT: a. Scoring and interpretation is very subjective. b. The pictures on the cards are new and updated. c. The amount of time it takes to score and interpret it. d. The lack of training of clinicians on using it.
Genetic causes are at the root of ____ of cases of autism
a) 10% b) 20% c) 35% d) 50%