see attachment

Grading Rubric


  1. Entering Descriptives (Independent Samples T-Test

5 possible points (5%)

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 Style.


  1. Histograms, Boxplots, and QQ Plots (Independent Samples T-Test

5 possible points (5%)

Level 5

Demonstrated proficiency in the use of R/statistical program, and correctly created a visual display formatted according to APA Style.

Level 4

Approaching proficiency in the use of R/statistical program. May have 1 or 2 errors or omissions in the creation of a visual display and titling of visual displays or there were errors in the APA formatting of the results.


  1. Normality Results (Independent Samples T-Test)

10 possible points (10%)

Level 5

Demonstrated proficiency in the use of R/statistical program, and correctly calculated the normality results for the variables and correctly formatted according to APA 7th ed.

Level 4

The response demonstrated an understanding of R/statistical program, and calculated the normality results for the variables with 1 or 2 errors and formatted according to APA 7ed with errors.


  1. Independent Samples T-Test Results

10 possible points (10%)

Level 5

Demonstrated proficiency in the use of R/statistical program, and proficiently explained and interpreted the Simple Regression test results, using APA 7th ed. Reporting.

Level 4

Approaching proficiency in the use of R/statistical program, and calculated, explained and interpreted the Simple Regression test results with 1 or 2 errors and formatted, using APA 7th ed. Reporting.


  1. Entering Descriptives (Paired samples T-T-Test

5 possible points (5%)

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 Style

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.


  1. Histograms, boxplots, QQ plots (Paired samples T-Test)

5 possible points (5%)

Level 5

Demonstrated proficiency in the use of R/statistical program, and correctly created a visual display formatted according to APA Style.

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.


  1. Normality Results (Paired samples T-T-Test)

10 possible points (10%)

Level 5

Demonstrated proficiency in the use of R/statistical program, and correctly calculated the normality and variance results for the variables and correctly formatted according to APA Style.

Level 4

The response demonstrated an understanding of R/statistical program, and calculated the normality and variance results for the variables with 1 or 2 errors and formatted according to APA Style with errors.


  1. Paired Samples T-Test 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 paired Samples T-Test results, using APA Style.

Level 4

Approaching proficiency in the use of R/statistical program, and correctly calculated correlation. Proficiently explained and interpreted the paired Samples T-Test results, using APA Style.


  1. Entering Descriptives (Variables Used in the ANOVA)

5 possible points (5%)

Level 5

5 points The submission demonstrated proficiency in the use of R/statistical program, and all data was entered correctly and was correctly formatted according to APA Style.

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.


  1. Histograms, Boxplots, QQ Plots (Variables Used in the ANOVA)

5 possible points (5%)

Level 5

Demonstrated proficiency in the use of R/statistical program, and correctly created a visual display formatted according to APA Style.

Level 4

Approaching proficiency in the use of R/statistical program. May have one to two errors or omissions in the creation of a visual display and titling of visual displays or there were errors in the APA formatting of the results.


  1. Normality results (Variables Used in the ANOVA)

5 possible points (5%)

Level 5

Demonstrated proficiency in the use of R/statistical program, and correctly calculated the normality and variance results for the variables and correctly formatted according to APA Style.

Level 4

The response demonstrated an understanding of R/statistical program, and calculated the normality and variance results for the variables with one to two errors and formatted according to APA Style with errors.


  1. ANOVA Results

5 possible points (5%)

Level 5

Demonstrated proficiency in the use of R/statistical program, and proficiently explained and interpreted the ANOVA Test results, using APA Style.

Level 4

Approaching proficiency in the use of R/statistical program, and calculated, explained and interpreted the ANOVA Test results with one to two errors and formatted, using APA Style.


  1. Post Hoc Analyses

10 possible points (10%)

Level 5

Demonstrated proficiency in the use of R/statistical program, and reported the means, SDs, ANOVA results (F, df), post hoc tests, effect size, and interpretation of the results in APA Style.

Level 4

Approaching proficiency in the use of R/statistical program, and reported the means, SDs, ANOVA results (F, df), post hoc tests, effect size, and interpretation of the results with 1 or 2 errors in APA Style.


  1. 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.

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.