Filters
Question type

Study Flashcards

The symbol for the Pearson product-moment correlation coefficient is b.

A) True
B) False

Correct Answer

verifed

verified

False

Which of the following provides a common metric allowing regression results to be compared to one another no matter what the original scale range may have been?


A) standardized regression coefficient (b)
B) c2
C) coefficient of determination (R2)
D) raw parameter estimates

E) B) and D)
F) B) and C)

Correct Answer

verifed

verified

A correlation coefficient indicates both the ______ of the relationship between two variables and the ______ of this relationship.

Correct Answer

verifed

verified

magnitude;...

View Answer

The _____ is a measure obtained by squaring the correlation coefficient.


A) t-statistic
B) coefficient of determination (R2)
C) F-ratio
D) Pearson coefficient

E) A) and B)
F) A) and C)

Correct Answer

verifed

verified

In a correlation matrix, the correlations in the main diagonal are all equal to _____.


A) -1.00
B) 0
C) +0.50
D) +1.00

E) None of the above
F) B) and D)

Correct Answer

verifed

verified

In a regression equation, the slope of the regression line is denoted by the symbol ______.

Correct Answer

verifed

verified

The Pearson product-moment correlation coefficient ranges between ______ and ______.

Correct Answer

verifed

verified

Which of the following is the standard form for reporting observed correlations among multiple variables?


A) correlation matrix
B) contingency table
C) Pearson grid
D) inverse table

E) A) and B)
F) All of the above

Correct Answer

verifed

verified

The coefficient of determination reflects the proportion of variance that can be explained by the regression line.

A) True
B) False

Correct Answer

verifed

verified

In regression analysis, the symbol X is commonly used for the ______ variable, and the symbol Y is commonly used for the ______ variable.


A) dependent; moderating
B) independent; dependent
C) dependent; independent
D) independent; moderating

E) B) and D)
F) None of the above

Correct Answer

verifed

verified

In a correlation matrix, the main diagonal contains correlations of 1.00 because it represents a variable's correlation with itself.

A) True
B) False

Correct Answer

verifed

verified

In the regression equation, Y = a + b X , b is the _____.


A) y-intercept
B) independent variable
C) slope of the regression line
D) dependent variable

E) B) and D)
F) All of the above

Correct Answer

verifed

verified

In regression analysis, the equation of a straight line is Y = a + b X.

A) True
B) False

Correct Answer

verifed

verified

True

A bivariate statistical technique that is used to measure the strength of the relationship between two variables is called a _____.


A) one-group t-test
B) two-group t-test
C) measure of association
D) correlation matrix

E) B) and C)
F) A) and D)

Correct Answer

verifed

verified

Discuss the pros and cons of raw regression estimates and standardized regression estimates and discuss when each is appropriate.

Correct Answer

verifed

verified

Regression parameter estimates can be pr...

View Answer

If the purpose of the regression analysis is forecasting, then standardized regression estimates must be used.

A) True
B) False

Correct Answer

verifed

verified

If the regression equation is: Y = -4.2 + 3.6 X , then the expected score for Y when X is 4 would be _____.


A) -18.6
B) 10.2
C) 18.6
D) 4

E) B) and C)
F) None of the above

Correct Answer

verifed

verified

B

Explain the ordinary least-squares (OLS) method of regression analysis and the logic behind it.

Correct Answer

verifed

verified

Ordinary least squares (OLS) is a relati...

View Answer

In most business research, the estimate of b in a regression equation is most important.

A) True
B) False

Correct Answer

verifed

verified

The regression parameter that represents the height of the regression line relative to horizontal is _____.

Correct Answer

verifed

verified

Showing 1 - 20 of 81

Related Exams

Show Answer