Which of the following results in the failure of a causal-comparative research study?
A. using inappropriate descriptive statistics
B. defining comparison groups carelessly
C. matching on too many variables
D. using groups that are too homogeneous
Answer: B
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A five-year-old girl has made a picture of her classroom that uses shapes to represent each child's desk and attempts to write some of her friends' names using shapes that have some letter-like characteristics. This student's work would best be described as:
a. Early representational drawing, mock letters, and letters. b. Writing letters or numbers randomly or in a string. c. Preschematic drawing and semiconventional alphabetic writing. d. Schematic drawing and conventional writing.
Theme-based playgrounds typically require families to pay for play.
Answer the following statement true (T) or false (F)
What is the moderator variable?
A. Whether or not the lecturer has a PhD B. Student attendance C. Degree grade D. Type of degree studied (by the student)
For autism, diagnosis usually cannot be made confidently until the child is about
A. four years of age. B. to begin third grade. C. two years of age. D. thirteen months of age.