Which of the following is NOT a type of experimental control to reduce bias?
A. randomly assigning subjects to groups.
B. using independent variables.
C. using a placebo.
D. using a double-blind design.
Answer: B. using independent variables.
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The descriptions of the conflict by the two children are usually completely different
Indicate whether the statement is true or false
When a child is diagnosed as having a 'restrictive lingual frenulum' the child is likely to have
A) a cleft lip. B) a hearing impairment. C) episodes of stuttering. D) articulation problems.
A histogram is most closely related to which of the following graphs?
A. Stem-and-leaf plot B. Scatterplot C. Pie chart D. Radar plot
Three of the following statements are accurate with regard to how developmental factors may affect children's and adolescents' performance on standardized tests. Which statement is not accurate?
a. It is more difficult to standardize testing conditions for young children than for students in the middle and high school grades. b. Young children's erratic behavior (due to short attention span, poor motivation, etc.) can adversely affect a test's validity. c. Adolescents are more likely to have debilitating test anxiety than young children are. d. Adolescents are more likely to take a standardized test seriously than fourth graders are.