A distribution which is flatter than the normal curve is
a. platykurtic.
b. leptokurtic.
c. less variable than the normal curve.
d. always symmetrical.
e. non-existent.
Ans: a
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A researcher conducts two studies. Each study was a one-sample z test. Both studies placed the rejection region in both tails and measured the same sample mean. The beta level in Study 1 was larger than the beta level used in Study 2. Which study is associated with greater power to detect an effect?
. Study 1 B. Study 2 C. They are associated with the same level of power.
Harms, Jacobs, and White developed an evaluation tool known as the _____________________________________________
Fill in the blank with correct word.
The newborn reflex in which they turn their head toward where they feel a finger stroke their cheek and start sucking the finger is called the ______ reflex
a. gag b. blinking c. Babinski d. rooting
Exclusion policies:
A. prevent illness and infection from occurring B. need only to be enforced when there is threat of serious disease C. protect teachers against potential charges of negligence D. serve as guidelines for deciding when a child is too ill to attend group care