A nonsignificant difference is attributed to _____
a. the effects of stratified sampling
b. an insufficiently low alpha value
c. sampling error
d. a standard error
C
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Correlational information can reveal relationships between variables, but it does not show cause and effect.
Answer the following statement true (T) or false (F)
Artificial lighting, hectic schedules, smoking, and drinking are factors that have
a. led to the development of narcolepsy in younger people. b. led to an increase in lucid dreaming. c. contributed to a near epidemic of sleep problems. d. resulted in the abnormal occurrence of hypnic jerks during sleep.
Eric has blue eyes. Since the gene for blue eyes is recessive, Eric must be ______ for that trait
a) genotype b) homozygous c) phenotype d) heterozygous
What is a good rule of thumb when trying to determine the impact of environmental toxins on fetal development?
A. If it does not bother the mother, it will not bother the developing fetus. B. If it does not bother young children aged 6 to 10, it will not bother the developing fetus. C. The impact on fetal development must be assessed separately from the impact on children or adults. D. The fetus is well protected. There are very few toxins to which it is likely to be vulnerable.