PSY520 Graduate
Statistics
Week 5 Assignment
Benchmark ? Correlation and Regression
Use the attached document ?Correlation and Regression? to
complete the assignment.
While APA format is not required for the body of this
assignment, solid academic writing is expected, and documentation of sources
should be presented using APA formatting guidelines, which can be found in the
APA Style Guide, located in the Student Success Center.
This benchmark assignment assesses the following
programmatic competencies: 3.1 Interpret psychological phenomena using
scientific reasoning.
Directions: Use the following information to complete the
questions below. While APA format is not required for the body of this
assignment, solid academic writing is expected, and documentation of sources
should be presented using APA formatting guidelines, which can be found in the
APA Style Guide, located in the Student Success Center.
1. Select at
least three variables that you believe have a linear relationship.
a. Specify
which variable is dependent and which are independent.
2. Collect
the data for these variables and describe your data collection technique and
why it was appropriate as well as why the sample size was best.
a. Submit
the data collected by submitting the SPSS data file with your submission.
3. Find the
Correlation coefficient for each of the possible pairings of dependent and
independent variables and describe the relationship in terms of strength and
direction.
4. Find a
linear model of the relationship between the three (or more) variables of
interest.
5. Explain
the validity of the model.