Research on low-level lead exposure and children's development indicates that
A) low blood levels are associated with early onset diabetes.
B) higher blood levels are associated with distractibility, overactivity, and behavior problems.
C) the majority of children overcome any negative cognitive effects by adolescence.
D) early exposure to lead can be neutralized by fluoride treatments in drinking water.
B
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After reading the case of Ted Bundy, a serial killer, several students discussed the advantages and disadvantages of case studies in psychological research. What conclusions might they reach?
a) Case studies are easy to conduct, but they are not good sources of research ideas. b) Case studies can provide a wealth of detail, but the information may not be applicable to other individuals. c) Case studies are the primary research method used by psychologists because they provide cause-and-effect conclusions. d) Case studies are used only for abnormal behavior and thus have limited use in studying the kinds of behavior that are of interest to most psychologists.
When do infants usually get their first tooth?
a. between 1 and 2 months b. between 5 and 9 months c. between 10 and 12 months d. between 14 and 16 months