Question

1. A researcher working with data about individuals’ ages and their income wants to know how income is related to age. Does income go up or down or remain constant with age? Which analysis would help the researcher understand this relationship best?

2.	A.	correlation analysis
	B.	logistic regression analysis
	C.	means comparison analysis
	D.	regression analysis

1. A researcher is working with two variables measured at the interval level. Which statistical tool should the researcher use?

2.	A.	χ2 analysis
	B.	cross-tabulation
	C.	correlation analysis
	D.	proportion analysis

The relationship between two variables is called ______.

	A.	regression
	B.	association
	C.	correlation
	D.	Affiliation

1. In a scatterplot, the ______ variable is measured on the horizontal axis and the ______ variable is on the vertical axis.

2.	A.	dependent; intervening
	B.	dependent; independent
	C.	control; dependent
	D.	independent; dependent

1. A Pearson’s r value of .51 signifies a ______.

2.	A.	weak negative relationship
	B.	moderate positive relationship
	C.	weak positive relationship
	D.	moderate negative relationship

The formula y = a + b( x) represents the ______.

	A.	correlation coefficient
	B.	Pearson’s r
	C.	regression coefficient
	D.	regression line

1. A researcher is studying her students’ test scores and the amount of coffee (number of cups) consumed before the exam. In the equation y = a + b( x) which variable represents the test scores?

2.	A.	a
	B.	b
	C.	y
	D.	x

1. In the equation y = a + b( x) which variable represents the y-intercept?

2.	A.	x
	B.	y
	C.	b
	D.	a

1. In the equation y = a + b( x), b stands for the ______.

2.	A.	regression coefficient
	B.	dependent variable
	C.	correlation coefficient
	D.	independent variable

9 multible choice questions. i forghotten to numeric them.

Answer 1

Answer to 1st question :

1st Option is correct , Correlation Analysis would help the researcher understand this better

Answer to 2nd question :

A correlation analysis  should be used by the researcher .

Hence , 3rd Option is correct

Answer to 3rd question :

The relationship between two variables is called Correlation

3rd Option is correct

Answer to 4th question :

In a scatterplot, the Independent variable is measured on the horizontal axis and the Dependent variable is on the vertical axis.

4th Option is correct

Answer to 5th question :

0.51 Pearson coefficient signifies moderate positive relationship

2nd Option is correct

Answer to 6th Question :

The equation , y = a + bx , represents the regression equation

Hence , 4th Option is correct

Answer to 7th question :

The variable y represents the test scores

3rd Option is correct

Answer to 8th question :

In the equation , y = a + bx , a reprsents the Y - Intercept

4th Option is correct

Answer to 9th question :

In the equation , y = a + bx , b represents the regression coefficient

1st Option is correct