CNSL 503 Exam Module 7 Correlational Analysis and
Linear Regression Questions and Guide Answers
100% Verified Graded A+
1. is performed to measure and describe how two quantitative variables
are related
Answer: Correlational analysis
2. Correlational analysis is performed when variables are observed in their
rather than being manipulated in a study
Answer: observed in their natural state
3. describes the direction of a relationship, form of a relationship (linear,
curvilinear, quadratic, or cubic), and the degree of a relationship.
Answer: Correlation
4. describes the direction of the linear relationship between two variables-
Answer: Covariance
, 5. If two variables covary, one of two directions exist in the plot of variables
Answer: 1.
2. 1. Both variables increase or decrease together. OR
2. As one variable increases the other decreases
6. Covariance does not imply
Answer: Covariance does not imply causation
7. is a limitation of correlational studies, however, correlation being estab-
lished is the first step in determining
Answer: Causation, causality
8. The most common ways correlations are represented graphically are with
, a graph in which two measurements are obtained from each individual in
the study and paired variable scores are plotted as coordinate pairs.
Answer: scatterplots
9. In scatterplots, the independent variable is on the and the dependent
variable is on the
Answer: In scatterplots, the independent variable is on the x-axis and the dependent variable is on the y-axis.
10. In scatterplots, the independent variable is called the and the depen-
dent variable is called the
Answer: explanatory, response
Linear Regression Questions and Guide Answers
100% Verified Graded A+
1. is performed to measure and describe how two quantitative variables
are related
Answer: Correlational analysis
2. Correlational analysis is performed when variables are observed in their
rather than being manipulated in a study
Answer: observed in their natural state
3. describes the direction of a relationship, form of a relationship (linear,
curvilinear, quadratic, or cubic), and the degree of a relationship.
Answer: Correlation
4. describes the direction of the linear relationship between two variables-
Answer: Covariance
, 5. If two variables covary, one of two directions exist in the plot of variables
Answer: 1.
2. 1. Both variables increase or decrease together. OR
2. As one variable increases the other decreases
6. Covariance does not imply
Answer: Covariance does not imply causation
7. is a limitation of correlational studies, however, correlation being estab-
lished is the first step in determining
Answer: Causation, causality
8. The most common ways correlations are represented graphically are with
, a graph in which two measurements are obtained from each individual in
the study and paired variable scores are plotted as coordinate pairs.
Answer: scatterplots
9. In scatterplots, the independent variable is on the and the dependent
variable is on the
Answer: In scatterplots, the independent variable is on the x-axis and the dependent variable is on the y-axis.
10. In scatterplots, the independent variable is called the and the depen-
dent variable is called the
Answer: explanatory, response
