Blog

A researcher computes an analysis of regression with 1 and 18 degrees of freedom. If F = 3.05, then the decision will be that X is a significant predictor of variation in Y.

A researcher measures the following correlation: r = –.21. What is the value of the coefficient of determination?

A researcher conducts a 2 ´ 4 between-subjects ANOVA in which 12 participants were observed in each group. If SSA = 18 and SSE = 264, then what is the decision for Factor A at a .05 level of significance using the two-way between-subjects ANOVA?

For an analysis of variance, the term “two-way” refers to ______.

The denominator of the formula for h2 is SST for both main effects and the interaction.

To estimate the population mean for the two-independent-sample t, the sample size must be known.

A correlation of r = .38 in a sample of 30 participants is statistically significant for a two-tailed test at a .05 level of significance.

A researcher reports the following equation for a best-fitting straight line to a set of data points: Y = 0.48X + 12.03. Which value is the slope?

The probability of correctly rejecting a false null hypothesis is called the power of the decision-making process.

Homoscedasticity is the assumption that there is an equal variance of data points dispersed along the regression line.