The middlemost score in a distribution is called
a. Mean
b. Mode
c. Median
d. Standard deviation
c
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The English language uses 26 letters in the alphabet, and these letters can be combined to create:
a. just over 40 distinct morphemes b. over 1,000,000 morphemes c. over 50,000 morphemes d. approximately 2,000 morphemes
Mark has constructed a test to measure adolescents' creativity. After administering the test many times with different groups of adolescents, Mark found that the test consistently measured adolescents' ability to solve math problems. This test is
a. valid, but not reliable. b. neither valid nor reliable. c. neither generalizable nor valid. d. reliable, but not valid.
Echolalia is a disorder in which sufferers ______
a. hear every sound multiple times as if each sound were accompanied by a repetitive echo b. stutter repeatedly when they get nervous or anxious c. imitate the physical gestures of other people around them d. repeat words that are said to them
Monozygotic twins occur when a single zygote splits into two. Therefore, these twins
a. are the same sex. b. have different genes. c. are the same as fraternal twins. d. occur in about 4/100 births.