CHYS 3P15 Fall 2022: Assignment 2

CHYS 3P15 Fall 2022: Assignment 2

Due: Before your scheduled lab on Sakai between Friday September 30- Wednesday October 5,
2022
Total marks to be earned = 50 marks
Instructions and Submission Checklist: All to be uploaded on Sakai
• Please use Assignment 2 Data Set
• Your assignment write up (i.e., Word document) in APA format on a separate page
• Your annotated syntax file uploaded onto Sakai
o Use asterisk* to start description and period to end description
o Please include all syntax used in your assignment (i.e., if you made any errors or
re-ran analyses, please delete irrelevant syntax so that TAs do not have to
“search” for the correct version)
o If it is unclear, a mark of 0 will be given.
• Your output file uploaded onto Sakai as a PDF
o Please include all output used in your assignment (i.e., if you made any errors or
re-ran analyses, please delete irrelevant output so that TAs do not have to
“search” for the correct version)
o If it is unclear, a mark of 0 will be given.
• Please make sure all 3 files are uploaded on your submission
1. COMPUTE a new variable, called (Tot_PARENT) based on the 5 items assessing Parent
Knowledge (parent1 to parent5). The new variable should reflect a TOTAL SCORE that
theoretically ranges from 5 to 25 with higher numbers representing higher parent knowledge.
• RECODE any individual items to satisfy the criteria above. All items should be coded so
that higher values represent higher parent knowledge.
• Accurately label the new variable.
• Please save your recode and compute statements on your Syntax file and submit this with
your assignment. (10 marks for recode syntax and 5 marks for compute syntax = 15
marks).
2. Assess the assumption of normality for the variable Optimism. Use the EXPLORE function to
report any relevant descriptive statistics (we covered this in the lab), the histogram with normal
curve, z scores (i.e., outliers), and the Kolmogorov-Smirnov Test of Normality.
• Report and interpret each of these components individually.
• For example, if you say skewness and kurtosis values are within range then state the
values of skewness and kurtosis and the range that you used to compare those numbers to
(e.g., +/-3).
• When you report the KS Test, make sure to report the null and alternate hypothesis,
criteria, decision, statistics, and interpretation.
• Draw an overall conclusion about whether this variable is normally distributed or not and
what led to this conclusion.
• Please submit all of the syntax and output you used to answer this question. (20 marks for
results write-up, 10 marks for syntax, 5 marks for output = 35 marks)