The coefficient of determination is to the Pearson correlation coefficient as which of the following is to chi-square?
a. R
b. F
c. The p-value
d. Phi
Researcher Jones is interested in assessing the relationship between sex of participant and helping behavior (whether the person helped or did not help). Which of the following statistics should be used?
a. Chi-square statistic
b. Kappa
c. Bivariate regression
d. Pearson's r
A psychologist wanted to determine whether attitudes toward capital punishment were affected by religious commitment. He chose a sample of sixty people, thirty of whom were very religious and thirty of whom were not religious.. He then assessed the person's attitude toward capital punishment. Thirteen of the very religious people were opposed to capital punishment, whereas only eight of the not religious people were opposed. What would be the most appropriate statistical analysis for this experimental data?
a. Bivariate regression
b. One-way analysis of variance
c. Correlation coefficient
d. Chi-square test for independence
What statistic is used to assess the degree of association between two nominal variables?
a. The chi-square statistic
b. Bivariate regression
c. ANOVA
d. Pearson's r
The proportion of variance measure for the Pearson correlation coefficient is
a. r.
b. the effect size.
c. the coefficient of determination.
d. the contingency table.
A negative correlation coefficient indicates that
a. there is no relationship between the variables.
b. high scores on one variable are associated with low scores on the other variable.
c. high scores on one variable are associated with high scores on the other variable.
d. it was not calculated accurately.
If a correlation is positive, this indicates that __________ scores on one variable are associated with __________ scores on another variable.
a. low; high
b. high; low
c. high; high
d. high; medium
A correlation coefficient specifies the __________ and __________ of the linear association between two variables.
a. direction; magnitude
b. strength; shape
c. direction; distribution
d. shape; distribution
Which of the following Pearson correlation coefficients indicates the strongest relationship between two variables?
a. .56
b. -.81
c. -.05
d. .34
Which of the following is NOT a bivariate statistic?
a. Pearson correlation coefficient
b. Chi-square
c. One-way ANOVA
d. Multiple regression
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