Which of the following describes the definitional formula for variance?
A. It is stated in terms of how variance is defined.
B. It is computed using SS in the numerator.
C. It is a measure of the average squared distance that scores deviate from their mean.
D. All of these.
Ans: D
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A ____________________ is a handheld device that scans texts and translates it into speech
Fill in the blank(s) with correct word
All of the following are characteristics of the classroom "ability game" described by Covington except that
a. only a few high grades are available. b. the classroom is focused on intellectual development. c. they contribute to performance-avoidance goals. d. they foster the belief that self-worth and success are related.
Tad is able to recall the account numbers on his credit cards without needing the card present for a purchase. Which memory technique is he most likely using?
A. Mnemonic device B. Stacking C. The memory process D. Chunking
Addition and subtraction concepts can be taught by counting. A type of manipulative that can assist students is a ________
A) number line B) calculator C) worksheet D) PC notebook