Defining memory in terms of the number of comprehension questions answered correctly after reading a short story would:
a. represent an operational definition of memory
b. be a testable hypothesis about memory
c. provide empirical verification of memory
d. violate general research ethics
A
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Gustav Fechner defined an absolute threshold as:
A. the intensity level that a person detects 50% of the time B. the amount of stimulus energy needed to develop a perception C. an increase or decrease in the intensity of stimuli D. the smallest amount of stimulus energy that can be observed or experienced
Comparing people in 5th grade to people in 12th grade, the biggest drop in number of waking hours spent with family members occurs in contact with
a. mothers. b. siblings. c. the entire family group. d. fathers.
Estradiol normally found in the bloodstream of a female rat fetus neither masculinizes nor feminizes its development because it is ____.
A. chemically converted to testosterone B. bound to alpha-fetoprotein C. dissolved in the fat supplies of the fetus D. not effective on cells even if it did enter them
A complete counterbalanced design is most practical in experiments:
A. where carryover effects can be totally eliminated with the proper counterbalancing procedures. B. with a large number of treatments. C. with a small number of treatments. D. where carryover effects are a minimal problem to start with.