Which of the following statements is true about genetic mutations?
A. They typically cause no phenotypic change
B. They are a rare occurrence
C. They typically lead to disease
D. They generally lead to a survival advantage
C. They typically lead to disease
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Babies begin to categorize on the basis of two correlated features by _____ months of age
A) 3 B) 6 C) 9 D) 12
A psychologist believes that increased TV watching by young children is responsible for increased neuroticism when these children enter elementary school. To explore her hypothesis, she records the TV viewing habits of toddlers in a suburban community. She examines these habits again when the children enter kindergarten and again every year until the children enter the sixth grade. Which research strategy is the investigator using?
A. retrospective B. longitudinal C. experimental D. cross-sectional
Sophie, a student in the second grade, is having trouble doing her math homework. When she was questioned by her teacher Julie about her incomplete homework, Sophie said that her parents do not have time to help her with the homework. After speaking to Sophie's first-grade teacher, Julie discovered that Sophie's parents have not attended any of the parent-teacher meetings held since she joined school. From the information provided in the scenario, it can be inferred that the parenting style Sophie experiences is
A. neglectful. B. indulgent. C. authoritarian. D. authoritative
Gene has been using crystal meth everyday for the last six months. He has lost his part-time job and is flunking out of college
He has pawned many of his possessions and even stolen money from his family to "take care of his habit." Gene's drugtaking behavior, at this point, would be classified as a. intensive. b. compulsive. c. situational. d. recreational.