If a study is high in external validity, then ____
a. the findings are likely to generalize to other people and other settings
b. the researcher can conclude that there is a cause-and-effect relationship
c. participants are exposed to only one level of the independent variable
d. participants are exposed to all levels of the independent variable
A
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One of the most famous appearance traits of actor Bruce Willis is his widow's peak. According to genetic theory, if the gene for a widow's peak is paired with the gene for straight hair, the widow's peak will always develop in that individual
What kind of allele is a widow's peak gene? a. Recessive b. Dormant c. Co-expressed d. Dominant
Approximately ___% of Caucasian American women and approximately ____% of African American women receive no prenatal care early in their pregnancies
a) 50; 75 b) 10; 50 c) 20; 40 d) 30; 50