For a goodness-of-fit chi-square test, the degrees of freedom are equal to
a. N – 1, where N is the number of observations.
b. C – 1, where C is the number of categories.
c. NC – 1.
d. (N – 1)(C – 1).
B
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Preschool children tend to view friends in terms of the toys and activities they share
Indicate whether the statement is true or false
Why are males more susceptible to X linked disorders?
a. Because males have an XX pairing of chromosomes; therefore, this increases their odds of a disorder. b. Because males have an XY pairing of chromosomes and the Y chromosome is more likely to host a genetic disorder. c. Because most genetic disorders are connected to the dominant gene and since men have an XY pairing a disorder is more likely to be expressed. d. Because males have one X chromosome, and if a recessive gene for a disorder is present, he does not have another X chromosome that may contain a dominant gene to block its expression.
All of the following are fine motor skills that a 3-year-old preschooler possesses EXCEPT
a) undo their clothes to go to the bathroom. b) put together a jigsaw puzzle. c) fit shaped blocks into matching shaped holes. d) throw a ball to a friend.
Which of the following disorders may involve abnormalities in mirror neurons?
a. Stress disorder b. Autism c. Fetal alcohol syndrome d. Depression