Like longitudinal research, cross-sectional studies can be threatened by
A) practice effects.
B) participant dropout.
C) sequential timing.
D) cohort effects.
D
Psychology
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The most common basic cause of dyslexia appears to involve
a. genes. b. an early environment that discouraged them from reading. c. brain injury occurring after birth. d. preterm birth.
Psychology
The most effective way to improve school effectiveness is to
a. have year-round school. b. add money to the budget but do not directly target academic instruction issues. c. modestly reduce the student-faculty ratio. d. encourage parents to purchase books and intellectually stimulating toys for their children.
Psychology