The variance in Y that is explained by the variance of X is

The variance in Y that is explained by the variance of X is the _____ .

a)

coefficient of determination

b)

unaccounted for variance in the predictor

c)

error variance in X

d)

predictor variance

Multiple regression is optimally used to combine _________ into one regression equation.

a)

two or more predictors

b)

multiple dependent variable

c)

seven highly related variables

d)

t-tests of relationships

z scores are a statistical technique that enables researchers to find _______.

a)

indiscriminating factors

b)

detailed bivariate correlations

c)

percentile scores

d)

groups of items that are statistically similar

A scatter plot illustrates the scores of each subject on __________ variables.

a)

One

b)

Two

c)

Three

d)

Four

Sampling Error is tends to be smaller with ________________ .

a)

larger samples

b)

smaller samples

c)

biased samples

d)

convenience samples

When a Type I error occurs someone

a)

Has a chance of getting published

b)

Has no chance of getting published

c)

The null is accepted

d)

P is greater than .05

The formula SS_factor/df _factor is used to compute ________ .

a)

F values

b)

Y-Y’

c)

Mean Squares error

d)

Mean Squares factor

Approximately 50% of the normal curve falls between ____ and ____ (z scores)

-3 and 0

0 and +1

– 2 and +2

-3 and +1

The range of teens’ ages from 15 to 17 is ____ the range of those aged 10 to 17.

Greater than

Less than

Equal to

Not enough information to tell

The probability of getting a Heads on one flip of a coin is _____

a)

.25

b)

.5

c)

.75

d)

1.0

	a)	coefficient of determination
	b)	unaccounted for variance in the predictor
	c)	error variance in X
	d)	predictor variance

Solution