Exam 16: Regression

Use the following to answer questions The scatterplot and regression line on the left depict the relation between a state's expenditure per student and the average SAT scores for students in the state.The scatterplot and regression line on the right depict the relation between students' SAT Verbal and SAT Quantitative scores. Figure: Standard Error Comparisons -(Figure: Standard Error Comparisons) For which prediction is the standard error of the estimate greater?

If two variables, independently, can help predict the outcome of a third variable, they are:

The slope is the predicted value for Y when X is equal to 0.

The simple linear regression equation uses the following formula: Ŷ = a(X) + b.

Latent variables are what we can observe and measure.

What information do the slopes in a multiple regression equation provide about the correlation coefficient?

A manifest variable is:

In the equation for a regression line, the slope is the:

A researcher wants to be able to predict first-semester grade point average with as much accuracy as possible, so she would like to use both high school grade point average and SAT score as predictor variables.Which technique would be most appropriate to make this prediction?

It is inappropriate to use structural equation modeling if there is not an a priori theoretical idea regarding the pattern of relations among the variables being measured.

Regression cannot prove causation, but it can:

Data from the World Health Organization in 2013 were used to predict the life expectancy for men in a country from the life expectancy of women in the country.The resulting regression equation was Ŷ = 3.73 + 0.88(X).This regression equation implies that:

The predicted z score for the dependent variable will always be _____ the individual's z score for the independent variable.