What is the standard error of estimate for a multiple regression equation with two predictor variables?
A) ?the square root of (SSresidual/(n - 2))
B) ?the square root of (SSresidual/(n - 3))
C) ?the square root of (SSregression/(n - 2))
D) ?the square root of (SSregression/(n - 3))
B
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With regard to the speed of the nerve impulse, perhaps the most important conclusion of Helmholtz's research for psychology was the determination ____.?
a. ?that the nerve impulse's speed is 900 feet/second b. ?that thought and movement are not simultaneous c. ?of the specific energies of nerves d. ?of the nature of harmony e. ?of the problem of resonance
One finding of the Merikangas et al. (2010) epidemiological study is that ____
a. males and females tend to differ in the kinds of disorders they experience b. adolescents have a lower rate of mood disorders than adults c. almost 50 percent of adolescents meet criteria for at least one psychological disorder d. people living in rural areas have a much higher incidence of mental disorders than do people living in urban areas
Cutting sensory nerves from the stomach, or removing it entirely, causes
a. a total loss of appetite. b. eating based on a recognized need, not internal feelings of hunger. c. little change with the person experiencing the feeling of hunger and eating regularly. d. the need for patients to be "trained" to eat; otherwise, they would inadvertently starve to death.
Most children become wary or fearful of strangers between the ages of ________
a. 2 to 3 months. b. 4 to 6 months. c. 6 to 8 months. d. 10 to 12 months.