Narcolepsy is predominantly a problem involving
a. the inability to fall asleep
b. an attack of sleep during the day
c. anxiety and fear during sleep
d. rapid movements of the eyes
e. uncontrollable brain seizures
Answer: b. an attack of sleep during the day
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There is a 6-point difference between two sample means. If the two samples have the same variance, which of the following values would make the mean difference easiest to see in a graph showing the two distributions?
a. s2 = 2 c. s2 = 16 b. s2 = 8 d. s2 = 64
Which of the following is an important factor emphasized by the sociocultural perspective in understanding behavior and mental processes?
A) Superego B) Gender C) Mutation D) Ego
The rate of serious mental illness of emerging adults is almost double that of adults over age 25
Indicate whether this statement is true or false.
Which one of the following is required to yield an accurate estimate of reliability/precision using the split halves method?
a. The two halves must be equivalent in length and content. b. The scores on each half must be equivalent. c. The first half must contain more questions than the second half. d. The estimate must be calculated using the coefficient alpha.