Stat Project Rubric – Analytic Rubric Example

Domain / Level of Proficiency / Comments
Proficient / Developing / Novice
Overview of Analysis / Provided explanation of research question(s) and real world context of results.
Named and defined variables clearly. / Stated research questions but did not explain real world context.
Named variables and provided some explanation but more is needed to fully understand the data. / Did not state research questions and did not make connection to real world context.
No indication of variables or explanation of the data.
Definition of Variables / Research variables named; measurement and possible values of each variable clearly defined. / Research variables names, but details are lacking on how variables are measured or quantified. / Research variables are not defined, defined inappropriately or inadequately.
Frequency Distribution Tables and Histograms / Each research variable is represented with appropriate, clearly labeled, charts and tables to support the narrative explanation (see Descriptive Statistics) / Charts and tables are present for most of the research variables but missing labels or have inappropriate labeling. Some misinterpretation of the charts and/or tables in the narrative explanation (See Descriptive Statistics) / Charts and tables missing or inappropriate presentation of data given the research variables.
No narrative to accompany the charts/tables (See Descriptive Statistics).
Descriptive Statistics / Each research variable is fully and appropriately described. / Research variables are described but there are minor misinterpretations. / Missing or inaccurate description of each research variable.
Pearson’s Correlation Coefficient / The correlation coefficient and its interpretation (e.g., not causation) are correctly reported, / The correlation coefficient is reported but it is misinterpreted (e.g., linked to causation, / Correlation coefficient is not reported or incorrect; incorrect or inadequate explanation of the
Scatter Plot / Scatter plot is present and correct; well-illustrated, scaled, and readable, axes are labeled, and there is a discussion of connections to the correlation coefficient, r / Scatter plot is present and correct but there are issues with the illustration, scalability, and/or labeling. There is not a discussion of the connection to the correlation coefficient, r / Scatter plot missing, or incorrect (e.g., confusion between predictor and criterion variables).
No connection to the correlation coefficient, r
Linear Regression / Regression line and equation are both correct; slope is reported and interpreted accurately; R2 is reported and interpreted accurately. A prediction example relevant to the identified context is used to demonstrate the regression equation. / Regression line is present and correct; regression equation is reported and is correct; slope is reported correctly and the interpretation is partially correct. R2 is reported correctly and interpretation is partially correct. / Regression line is missing, incorrect, or poorly illustrated; equation of regression line not reported and inadequately explained or not explained at all. Slope of regression line is not reported correctly and/or the interpretation of the slope is incorrect.
R2 is completely missing from Discussion.
Confidence Intervals / Confidence interval presented with correct interpretation to context / Confidence interval presented but missing interpretation or inappropriate interpretation provided. / Missing confidence interval or explanation missing or inappropriate is provided.
Testing of Means / Appropriate t-test implemented to address stated hypotheses; consideration of statistical assumptions provided. / Appropriate t-test implemented to address stated hypotheses; incomplete consideration of statistical assumptions provided. / Inappropriate t-test implemented and/or no consideration of statistical assumptions.
Hypothesis Testing Procedure / Null and alternative hypotheses are clearly and correctly stated using appropriate statistical symbols.
An appropriate statistical test is implemented correctly.
Correct conclusions are drawn based upon the obtained critical value.
Interpretation of the conclusion relative to the hypotheses in clearly stated and accurate within the given context. No unwarranted conclusions. / Null and/or alternative hypotheses are stated with some inappropriate use of statistical symbols.
An appropriate statistical test is implemented but conclusions drawn based upon obtained critical value are incorrect.
Misinterpretation of the conclusions and/or lacking contextualization and connection back to the hypotheses. / Hypotheses are missing or are inappropriately stated (incorrect symbols).
Incorrect statistical procedure is implemented to address the hypotheses.
Incorrect conclusions are drawn based upon the obtained critical value or conclusions are completely missing.
Misinterpretation of the conclusion relative to the hypotheses with no contextualization or connection of the stated hypotheses.
Discussion / Discussion of results is insightful; adds meaning and significance to the findings. / Adequate discussion of results but limited reflection into why the results occurred. / Implications of results not discussed; no attempt to explain findings. Report draws unwarranted conclusions or uses inappropriately certain language (e.g., “we proved”).
Presentation / The document is written with logic, clarity, and precision using scholarly language. The text is logical and coherent. There is consistent application of the scholarly writing and publication guidelines. / The document tends to be logically organized but there is a lack of precision and clarity. The use of scholarly language is sporadic throughout the document. Inconsistent or inappropriate application of scholarly writing and publication guidelines. / The document is not written in a scholarly fashion or lacks precision and clarity. Failure to follow scholarly writing and publication guidelines.