see attachment
Grading Rubric:
Entering Descriptives
10 possible points (10%)
Level 5
The submission demonstrated proficiency in the use of R/statistical program, and all data was entered correctly and was correctly formatted according to APA 7ed.
9 - 10
Level 4
The submission demonstrated the ability to use R/statistical program and enter data. However, there were some data entry errors or other errors in the submission or there were errors in the APA formatting of the results.
8 - 8
Level 3
The submission demonstrated the ability to use R/statistical program and enter data. However, there were more than three data entry errors or other errors in the submission or there were errors in the APA formatting of the results.
7 - 7
Mean, Standard Deviation, Skewness and Kurtosis
10 possible points (10%)
Level 5
Demonstrated proficiency in the use of R/statistical program, and correctly calculated and reported the mean and standard deviation for the two variables and was correctly formatted according to APA 7th ed.
9 - 10
Level 4
Approaching proficiency in the use of R/statistical program. May have an error or omission in the calculation or reporting of the mean and standard deviation for the two variables or there were errors in the APA formatting of the results.
8 - 8
Level 3
Approaching proficiency in the use of R/statistical program and enter data. However, there were more than three data entry errors or other errors in the submission or there were errors in the APA formatting of the results
7 - 7
Histograms
10 possible points (10%)
Level 5
Demonstrated proficiency in the use of R/statistical program, and correctly created a visual display formatted according to APA 7th ed.
9 - 10
Level 4
Approaching proficiency in the use of R/statistical program. May have an error or omission in the creation of a visual display and titling of histogram or there were errors in the APA formatting of the results.
8 - 8
Level 3
Approaching proficiency in the use of R/statistical program. May have an error or omission in the creation of a visual display and titling of histogram or there were errors in the APA formatting of the results.
7 - 7
Boxplots
10 possible points (10%)
Level 5
Demonstrated proficiency in the use of R/statistical program and correctly created and titled boxplots and correctly created a visual display formatted according to APA 7th ed.
9 - 10
Level 4
Approaching proficiency in the use of R/statistical program. May have an error or omission in the creation and titling of boxplots or there were errors in the APA formatting of the results.
8 - 8
Level 3
Approaching proficiency in the use of R/statistical program. May have an error or omission in the creation and titling of boxplots or there were errors in the APA formatting of the results.
7 - 7
QQ Plots
10 possible points (10%)
Level 5
Demonstrated proficiency in the use of R/statistical program and correctly created and titled a QQ plot displaying error bars and correctly created a visual display formatted according to APA 7ed..
9 - 10
Level 4
Approaching proficiency in the use of R/statistical program. May have an error or omission in the creation and titling of a QQ plot displaying error bars or there were errors in the APA formatting of the results.
8 - 8
Level 3
Approaching proficiency in the use of R/statistical program. May have an error or omission in the creation and titling of a QQ plot displaying error bars or there were errors in the APA formatting of the results.
7 - 7
Skill Variable Normality Results
10 possible points (10%)
Level 5
Demonstrated proficiency in the use of R/statistical program, and correctly calculated the normality results of the skill variable using the Anderson-Darling test and correctly formatted according to APA 7ed.
9 - 10
Level 4
The response demonstrated an understanding of R/statistical program, and calculated the normality results of the skill variable with 1 or 2 errors using the Anderson-Darling test and formatted according to APA 7ed with errors.
8 - 8
Level 3
Approaching proficiency in the use of R/statistical program and calculated the normality results of the skill variable with 3 or 4 errors using the Anderson-Darling test and formatted according to APA 7ed with errors.
7 - 7
Aptitude Variable Normality Results
10 possible points (10%)
Level 5
Demonstrated proficiency in the use of R/statistical program, and correctly calculated the normality results of the aptitude variable using the Anderson-Darling and correctly formatted according to APA 7th ed.
9 - 10
Level 4
The response demonstrated an understanding of R/statistical program, and calculated the normality results of the aptitude variable with 1 or 2 errors using the Anderson-Darling test and formatted according to APA 7th ed. with errors.
8 - 8
Level 3
Approaching proficiency in the use of R/statistical program and calculated the normality results of the aptitude variable with 3 or 4 errors using the Anderson-Darling test and formatted according to APA 7th ed. with errors.
7 - 7
Correlation Assumptions
10 possible points (10%)
Level 5
All assumptions for Correlation provided and correct.
9 - 10
Level 4
Most of the assumptions for Correlation were provided.
8 - 8
Level 3
Some assumptions are not provided.
7 - 7
Correlation Results
10 possible points (10%)
Level 5
Demonstrated proficiency in the use of R/statistical program, and correctly calculated correlation. Proficiently explained and interpreted the correlation results, using APA 7th ed. Reporting.
9 - 10
Level 4
Approaching proficiency in the use of R/statistical program, and correctly calculated correlation. Proficiently explained and interpreted the correlation results, using APA 7th ed. Reporting.
8 - 8
Level 3
Developing proficiency in the use of R/statistical program, and correctly calculated correlation. Proficiently explained and interpreted the correlation results, using APA 7th ed. Reporting.
7 - 7
Writing Mechanics
10 possible points (10%)
Level 5
Writing is clear and concise. Sentence structure and grammar are both excellent. Correct use of punctuation. No spelling errors.
9 - 10
Level 4
Writing is clear and concise. Sentence structure and grammar are strong. There may be 1-2 minor punctuation errors and/or spelling errors.
8 - 8
Level 3
Writing is mostly clear and concise. Sentence structure and grammar are strong and mostly correct. There may be 3 or 4 minor errors in punctuation and/or spelling
7 - 7
