Cerebral achromatopsia is when a person _____
A) ?has only one type of cone pigment due to genetic causes
B) ?has only two types of cone pigments
C) ?has normal cone functioning, but cannot experience color due to a brain injury
D) ?paradoxically can experience color cortically from stimulation from the rods
C
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Researchers who were studying plant growth raised plants in two separate rooms. One room had taped conversations playing 24 hours a day; the other room was silent. The researchers found that the plants grew better in the room that had the conversations playing. In this study, the type of room (conversation or silence) would be
a. the dependent variable. b. an extraneous variable. c. a placebo. d. the independent variable.
Jim does not study for the test because he believes his grade will just be a matter of luck. Rotter would classify him as a(n) _____ person
a. internal b. external c. situational d. superstitious
For a sample of n = 16 scores, how many scores are used to calculate the sample variance?
A) ?2 B) ?8 C) ?15 D) ?16
The p value is not sufficient for indicating the importance of the outcome of a study. The reason for this is because
a. p values are too small. b. the size of the study affects the p value. c. the magnitude of the test statistic must also be known. d. effect sizes are related to p values.