What percentage of zygotes have an abnormal number of chromosomes?
< 1 percent
20 percent–25 percent
5 percent–10 percent
> 50 percent
5 percent–10 percent
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For the independent-measures t statistic, what is the effect of increasing the difference between sample means?
a. Increase the likelihood of rejecting H0 and increase measures of effect size b. Increase the likelihood of rejecting H0 and decrease measures of effect size c. Decrease the likelihood of rejecting H0 and increase measures of effect size d. Decrease the likelihood of rejecting H0and decrease measures of effect size
A split-brain patient who sees something in his left visual field can point to it with the ____
a. left hand but cannot name it b. right hand but cannot name it c. left hand and can name it d. right hand and can name it
If the independent variable in an experiment had an effect this would contribute to _____ variance in the F-ratio
a. total b. between-groups c. within-groups d. error
Research on the lateralization of musical skills
A. demonstrates conclusively that musical skills are lateralized to the right hemisphere in most people. B. demonstrates conclusively that musical skills are lateralized to the left hemisphere in most people. C. has produced mixed results, leading to an ongoing debate about the extent to which musical skills are lateralized. D. supports the idea that musical skills are equally divided between the two hemispheres.