Which of the following is an accurate statement?
A. A baseline involves only systematic observation or measurement
with no planned intervention occurring.
B. An observation-only phase involves only systematic observation
or measurement with no planned intervention occurring.
C. Both of the above.
D. Neither of the above.
C
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Defective color vision is more common among males than females because
a. males have fewer cones than females. b. genes for photopigments are carried on the Y chromosome. c. as a result of higher estrogen levels, females produce more rhodopsin than males. d. genes for photopigments are carried on the X chromosome. e. as a result of lower estrogen levels, males produce more rhodopsin than females.
The phenomenon of imprinting can be considered evidence for
(a) genetic programming (b) sensitivity to critical environmental events (c) the importance of early experience (d) all of the above