In which of the following situations would one use an independent t test?
a. A professor wants to know if one of his two Introduction to Psychology classes scored significantly higher than the other class on the same exam.
b. A professor wants to know if there was a significant improvement in test scores from Exam 1 to Exam 2 for one of his Introduction to Psychology classes.
c. An educator wants to know if students spend more time talking on the phone than
studying during a typical day.
d. A researcher wishes to learn whether the oldest child in a family does significantly better on standardized tests than the youngest child in the family.
a
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How do we know that itch differs from pain? a. After anesthesia, itch sensations return before pain
b. People who are highly sensitive to pain feel no itch. c. Itch and pain occur on different parts of the body. d. Infants feel itch before they are capable of feeling pain.
The sense of separation anxiety described in the Parkes/Bowlby attachment model of bereavement is most closely associated with the _____ reaction
a. reorganization b. numbness c. yearning d. disorganization/despair
Rejecting the null hypothesis when it is actually false, is a _____
a. Type I error c. Type II error b. correct decision d. incorrect decision
William Stern developed a method for assessing similar degrees of retardation in children of different ages when he devised the _____
a) Stern Scale. b) deviation score. c) intelligence quotient. d) Stanford Scale.