The most common community living arrangement available to adults with mental retardation and developmental disabilities are
A. foster homes
B. adoptive homes
C. group homes
D. community homes
c
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Refer to Exhibit 5-1. Which of the hypotheses violated the criterion that: hypotheses should follow the principle of parsimony in providing explanations
a. Peter is an inherently bad boy who had stepped out of line and ran to the classroom by the back stairs in order to infuriate the teacher. b. Peter leapt from the ground directly into the classroom window. c. Peter has an identical twin whom the teacher did not know about. He and Peter arranged with the principal to stage the fire drill so that they could play this trick on the teacher. d. Peter slipped into the boy's room on the way out and returned to his seat from there.
The testosterone level of a new father declines following the birth of his baby.
Answer the following statement true (T) or false (F)
Increasing survey size does not affect survey bias.
Answer the following statement true (T) or false (F)
What is the independent variable?
An industrial psychologist tests three different keyboard designs for a new computer to determine which one produces optimal performance. Four computer operators are given text material and told to type it as fast as they can. They spend 3 minutes on each keyboard with a 10-minute rest between each keyboard. The number of errors committed are recorded. The researcher wants to know if there is a significant difference in errors among the three types of keyboards (called Keyboard A, Keyboard B, and Keyboard C). The one-way, repeated-measures ANOVA revealed that there was a significant difference in number of errors made based on the type of keyboard being used, F(2, 38) = 6.91, p = .003, ?p2 = 0.267. Bonferroni-corrected multiple comparisons revealed that more mistakes were made with Keyboard C (M = 6.00, SD = 2.18) than with Keyboard B (M = 4.00, SD = 2.05), p < .01. There was no difference between Keyboard A (M = 5.00, SD = 2.16) and Keyboard B, p = .59 or between Keyboard A and Keyboard C, p = .71.