Exam 4

A  Ordinal data

B  The chi-square value

C  Ranked scores

D  All of the above

A  0.92

B  0.86

C  0.14

D  0.63

A  its size

B  Its sign (+ or – )

C  Neither

D  Both

A  X is a good predictor of Y

B  low scores on X are associated with low scores on Y

C  High scores on X are associated with high scores on Y

D  X is NOT a good predictor of Y

A  when random sampling has been used

B  for nominal data

C  for tables that are 2 x 2

D  all of the above

A  interval level data

B  both nominal and interval

C  nominal level data

D  ordinal level data

A  the amount of change in Y for each unit change in X

B  the amount of change in X for each unit change in Y

C  the point where the regression line crosses the Y axis when X = 0

D  the points where the regression line crosses the X axis when Y = 0

A  both its size and sign (+ or -)

B  its size

C  its sign (+ or -)

D  neither its sign (+ or -) or size

A  contingency coefficient

B  Cramer’s V

C  Spearman’s rank order correlation coefficient

D  Pearson’s r

A  Pearson’s r

B  Spearman’s r

C  Contingency Coefficient

D  Phi coefficient

A  Pearson’s r

B  Cramer’s V

C  Spearman’s r

D  Goodman’s and Kruskal’s Gamma

A  there is a large sample

B  the table is 2 x 2

C  the given table does not have the same number of row and columns

D  the table has the same number of rows and columns

A  the variables being investigated must be correlated

B  the independent variable is influenced by the dependent variable

C  one variable is believed to be influenced by the other

D  the independent variable must be categorical in nature

A  the proportion of variance in Y that is NOT explained by X

B  the proportion of variance in X that is attributed to error

C  the proporion of variance in Y that is attributed to error

D  the proportion of the variance in Y that is explained by X

A  the better the obtained data fit the regression line (AKA line of best fit)

B  the worse the obtained data fit the regression line

C  the ore the independent variable predicts the independent variable

D  the less variance has been accounted for by the independent variable

A  the point where the regresssion line corsses the X-axis when Y=0

B  the amount of change in Y for each unit change in X

C  the point where the regression line crosses the Y-axis when X=0

D  the amount of change in X for each change in Y

A  a negative relationship

B  a positive relationship

C  curvilienear relationship

D  not enough information to answer question

A  varies from -1.0 to +1.0

B  presents the strength of the relationship

C  presents the direction of the relationship

D  all of the above

A  -0.28

B  (+0.58)

C  (+0.12)

D  -0.31

A  correlations can never exceed 1.0

B  correlations closer to 0.0 are considered to be weak, while correlations closer to 1.0 are considered to be strong.

C  correlations provide statements of causation

D  correlations can be negative

A  inverse

B  there is not enough information to estimate the nature of the correlation

C  positive

D  negative