Sam wants to test the effects of turmeric on runners’ performance. What is one of the best ways for Sam to guarantee that any effects he observes are due to turmeric, rather than participants’ expectations of the substance?
A. Ensure that neither the participants nor the researchers know which group the participants are assigned to.
B. Ensure that the participants do not know the purpose of the study.
C. Ensure that the researchers control for confounding variables during analyses.
D. Ensure that IRB has approved all procedures and is aware of any ethical concerns raised by the study.
Answer: A
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By age 7, most children are capable of all but which of the following gross motor skills?
a. Hopping b. Jumping c. Climbing d. Walking on a balance beam without falling
Light from the right half of the world strikes which part of the retina?
a. the left half b. the right half c. the whole retina equally d. It depends of the wavelength.
Phonological processing involves the conversion of a. spoken sound into memories. b. memories into words
c. numbers into letters. d. printed letters into sound.
The anterior raphe nuclei show the same pattern of activation during states of consciousness as the a. lateral geniculate nucleus of the thalamus
b. preoptic area of the hypothalamus. c. locus coeruleus. d. pontine reticular formation.