A multiple regression equation computed from a sample of 88 scores is y ?=2.1+.25(x_1)+.625(x_2). The estimated standard error of estimate is 3, and the variances of x1 and x2 are 12 and 0.23, respectively. If the squared correlation between x1 and x2 is .75, then the variance inflation factor is ______.
a. 4.00
b. 1.33
c. 0.75
d. 0.25
Ans: A
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a. precede b. coexist with c. maintain d. all of the above
Approximately 87% of all strokes are the result of ____
a. reduced blood flow caused by a clot or severe narrowing of the arteries b. blood vessels bursting c. leakage of blood into the brain d. vascular cognitive impairment
As infants develop
a. babbling shifts from single syllable utterances to combinations of different sounds. b. the average length of each babbled sound decreases. c. babbling tends to become more constant in pitch. d. they shift from babbling to cooing.
ECT stands for ________.
A. easy classical treatment B. economy, cognition, tokens C. electroconvulsive therapy D. extra conditioning therapy