Based on your conceptual knowledge of what a standard deviation is, which of the following is the standard deviation of the scores 2, 2, 4, and 4?
A) 1
B) 2
C) 3
D) 4
A
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What is considered the greatest risk to the health and well-being of a child?
A. illness B. nutritional problems C. accidents D. neglect
Piaget contended that in infancy,
a. reaching was a developmental precursor of looking. b. reaching and looking represented the same activity. c. looking was a developmental precursor of reaching. d. reaching and looking were unrelated behaviors.
The most accurate way to think of genes is that they
A. provide some boundaries for our development. B. determine both our physical and psychological characteristics. C. determine physical but not psychological characteristics. D. actually have very little to do with any of the characteristics that we display.
Legibility of writing gradually increases as children ________
A. use larger, more uniform lettering B. produce more accurate letters with uniform height and spacing C. learn to make strokes with their entire arm D. learn to accurately integrate two-dimensional shapes