A repeated-measures research study uses n = 8 subjects. If the within-treatment df for the ANOVA is 21, what is the value for the error df?
A) ?7
B) ?13
C) ?14
D) ?18
C
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Which of these is NOT an explanation for why snake phobias are more common than car phobias?
a. Repeated safe experiences reduce the likelihood of a learned fear b. We are more likely to fear objects that are unpredictable and uncontrollable. c. Genetic predispositions favor development of some fears rather than others. d. Phobias develop by classical conditioning between an object and a painful experience.
Explain why it is that there are so many types of statistical tests. Provide an example.
What will be an ideal response?
Eighteen-month-old Gavin has just learned 10 new words in the past week. This brings his total vocabulary to 30 words. Gavin is best described as
a. babbling. b. experiencing a vocabulary spurt. c. overextending. d. acquiring metalinguistic awareness.
Sharon has had a history of post-traumatic stress disorder. She is at risk for developing ____
a. endometriosis c. polycystic ovarian syndrome b. dysfunctional uterine bleeding d. PMS or PMDD