Which statement concerning the sickle-cell trait is true?
a. Individuals with the trait have the dominant phenotype but possess the recessive genotype
b. Individuals with the trait have both a dominant and recessive allele for the disorder.
c. Individuals with the trait are genetically predisposed to the disorder but cannot display any symptoms.
d. Individuals with the trait tend to have the most severe form of the disease.
b
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Which outcome is possible in a 2 x 2 factorial design?
a. two main effects and two interactions b. a main effect for one factor, no main effect for the other factor, and two interactions c. no main effect for either factor and one interaction d. a four-way interaction
Prenatal events, such as the mother's stress or near starvation,
A. increase the likelihood a child will later develop schizophrenia and depression. B. increase the likelihood that the mother will later develop schizophrenia or depression. C. increase the likelihood that a child will later develop schizophrenia but decrease the likelihood that the child will develop depression. D. have no measurable impact on the child's risk for developing depression.
Which form of learning relies on newborns producing an "orienting response" in which they become quiet, attentive, and experience a slowed heart rate as they "take in" the novel stimuli?
a) Habituation b) Operant conditioning c) Classical conditioning d) Modeling
In Tina's classroom there is little or no collaboration with her fellow students and each day is highly structured and organized. Tina is likely being educated with the ________ approach.
A. direct instruction B. constructivist C. child-centered D. organized