Scoring Rubrics
[FOR WRITTEN ASSIGNMENTS AND ORAL PRESENTATIONS]

Diane Ebert-May
Lyman Briggs School
Department of Botany and Plant Pathology
Michigan State University


WHY USE RUBRICS?
Has a student ever said to you regarding an assignment, “But, I didn’t know what you wanted!” or 
“Why did her paper get an ‘A’ and mine a ‘C?’”  Students must understand the goals we expect 
them to achieve in course assignments, and importantly, the criteria we use to determine how well 
they have achieved those goals.  Rubrics provide a readily accessible way of communicating and 
developing our goals with students and the criteria we use to discern how well students have 
reached them.

WHAT IS A RUBRIC?
Rubrics (or “scoring tools”) are a way of describing evaluation criteria (or “grading standards”) 
based on the expected outcomes and performances of students.  Typically, rubrics are used in 
scoring or grading written assignments or oral presentations; however, they may be used to score 
any form of student performance.  Each rubric consists of a set of scoring criteria and point values 
associated with these criteria.  In most rubrics the criteria are grouped into categories so the 
instructor and the student can discriminate among the categories by level of performance.  In 
classroom use, the rubric provides an “objective” external standard against which student 
performance may be compared.

WHAT IS INVOLVED? 
Instructor Preparation Time: Medium to High
Preparing Your Students: Continuous; but students catch on fairly quickly
Class Time: Variable. As students use rubrics, they become better writers and oral 
presenters; hence the time instructors spend evaluating students’ work is reduced.  
Disciplines: All
Class Size: All.  Rubrics are easy to use in small classes, and are particularly useful in 
large classes to facilitate scoring large numbers of written or oral assignments.
Individual/Group Involvement: Both.
Analyzing Results: The level of analysis depends on the instructor’s intended goal of 
the assessment task and the type of data desired about students’ performance.   For detailed 
analysis of students’ responses, each section of the rubric can be scored independently then 
totaled.  For a holistic analysis of students’ responses, all sections of the rubric can be 
blended and an overall score assigned.
Other Things to Consider: Rubrics must be readily available to students before they 
begin an assignment or written test.  Posting rubrics on the web and including them in the 
course pack for in-class writing promotes their usefulness. 



Contents
∑ Description
∑ Assessment Purposes
∑ Limitations
∑ Teaching and Learning Goals
∑ Suggestions for Use
∑ Step-by-Step Instructions
∑ Variations
∑ Analysis
∑ Pros and Challenges
∑ Theory and Research
∑ Links
∑ Sources
∑ Diane Ebert-May


Description

Example 1.  Scoring Rubric for Quizzes and Homework
Level of Achievement
General Approach
Comprehension

Exemplary
(5 pts quizzes)
•Addresses the question.
•States a relevant, justifiable answer. 
•Presents arguments in a logical order.
•Uses acceptable style and grammar (no 
errors).
•Demonstrates an accurate and complete 
understanding of the question.
•Backs conclusions with data and 
warrants.
•Uses 2 or more ideas, examples and/or 
arguments that support the answer.

Adequate
(4 pts quizzes)
•Does not address the question 
explicitly, although does so 
tangentially.
•States a relevant and justifiable answer. 
•Presents arguments in a logical order.
•Uses acceptable style and grammar (one 
error).
•Demonstrates accurate but only 
adequate understanding of question 
because does not back conclusions with 
warrants and data.
•Uses only one idea to support the 
answer.
•Less thorough than above.

Needs Improvement
(3 pts quizzes)
•Does not address the question.
•States no relevant answers.
•Indicates misconceptions.
•Is not clearly or logically organized.
•Fails to use acceptable style and 
grammar (two or more errors).
•Does not demonstrate accurate 
understanding of the question.
•Does not provide evidence to support 
their answer to the question.

No Answer (0 pts)






Assessment Purposes
∑ To improve the reliability of scoring written assignments and oral presentations
∑ To convey goals and performance expectations of students in an unambiguous way
∑ To convey “grading standards” or “point values” and relate them to performance goals
∑ To engage students in critical evaluation of their own performance.


Limitations
∑ The problem of criteria: One challenge (or potential limitation) in developing and using 
rubrics is that of describing performance expectations, and defining the criteria that differentiate 
several levels of performance.  Quantitative descriptors may be helpful in differentiating among 
performance levels, e.g., “provide 2 examples of evidence that support the conclusion...,” or  
“zero grammatical errors”.  Whereas variables such as vague or concise, must be described 
clearly so that students see the differences between a statement that is vague and a statement 
that is concise.  By carefully describing our performance expectations and defining the criteria 
we use to differentiate levels of performance, our role as evaluators becomes easier, more 
informative, and more useful to our students and us.
∑ The problem of practice and regular use: No assessment tool is effective if it is not 
used on a regular basis.  Rubrics are most effective when we practice using them with our 
students over and over again.  Developing effective rubrics requires revision based on feedback 
from students.  The best rubrics are products of an iterative effort.


Example 2. Scoring Rubric for Grant Proposals (35 points possible)
Level of 
Achievement
General 
Presentation (10 
points possible)
Conceptual 
Understanding 
(10 points 
possible)
Argument 
Structure  (10 
points possible)
Use of literature 
and pertinent 
resources (5 
points possible)

Exemplary
∑ (10 pts.)
∑ Provides a clear and 
thorough 
introduction and 
background
∑ States a specific, 
testable research 
question
∑ Provides clear 
explanation of 
proposed research 
methods
∑ Presents rationale 
and significance of 
proposed research in 
the form of a well-
structured, logical 
argument.
∑ Uses acceptable style 
and grammar (0 
errors)
 
∑ (10 pts.)
∑ Demonstrates a clear 
understanding of the 
LTER site and the 
proposed research.
∑ Uses a broad range 
of information to 
build and support 
arguments.
∑ Demonstrates a good 
understanding of the 
implications of the 
data and/or 
information.  

∑ (10 pts.)
∑ Provides strong, 
clear, convincing 
statements (i.e. 
conclusions) of the 
reasons the proposed 
research is important 
and should be 
funded.
∑ Provides relevant 
evidence to support 
conclusions.
∑ Provides reasons for 
the legitimacy of the 
evidence (i.e. 
warrants) that enable 
conclusions.

∑ (5 pts.)
∑ Follows proper 
format in providing 
citations.
∑ Uses data and/or 
information relevant 
to the proposed 
research


Adequate
∑ (8 pts.)
∑ Provides an 
introduction and 
background that is 
only somewhat 
significant to the 
experiment.
∑ States a clear, but 
untestable research 
question.
∑ Provides an adequate 
explanation of 
proposed research 
methods
∑ Shows some effort 
to present the 
rationale and 
significance of 
proposed research in 
the form of a well-
structured argument.
Uses adequate style 
and grammar  (1-2 
errors) 
∑ (8 pts.)
∑ Demonstrates a 
partial understanding 
of the LTER site and 
the proposed 
research.
∑ Uses a information 
from only 2 or 3 
sources to build and 
support arguments.
∑ Demonstrates a 
partial understanding 
of the implications 
of the data and/or 
information.  

∑ (8 pts.)
∑ Provides statements 
(i.e. conclusions) 
explaining the 
reasons the proposed 
research is important 
and should be 
funded, but weak 
evidence to support 
conclusions and no 
warrants.

∑ (4 pts.)
∑ Follows proper 
format in providing 
citations, but not 
consistently 
throughout the 
proposal.
∑ Uses limited number 
of sources of data 
and/or information 
relevant to the 
proposed research.


Needs Improvement
∑ (6 pts.)
∑ Provides an 
introduction and 
background that is 
insignificant to the 
experiment.
∑ States a vague, 
untestable research 
question.
∑ Provides an 
unorganized 
explanation of 
proposed research 
methods
∑ Presents rationale 
and significance of 
proposed research in 
the form of a weak, 
unstructured 
argument.
∑ Fails to use 
acceptable style and 
grammar (>2 errors) 

∑ (6 pts.)
∑ Does not 
demonstrates an 
understanding of the 
LTER site and the 
proposed research.
∑ Uses less than two 
sources to build and 
support arguments.
∑ Does not appear to 
understand the 
implications of the 
data and/or 
information.  

∑ (6 pts.)
∑ Provides statements 
(i.e. conclusions) 
explaining the 
reasons the proposed 
research is important 
and should be 
funded, but no 
evidence to support 
conclusions and no 
warrants.

∑ (3 pts.)
∑ Does not follow 
proper format in 
providing citations.
∑ 




Teaching and Learning Goals 
Students learn to communicate about science in a variety of ways and especially improve their 
writing skills.  The quality of students reasoning and logic increases.  Instructors gather a variety 
of data about students’ understanding and performance.



Suggestions for Use
I design rubrics for the multiple forms of assessment I use in my courses: short writing samples, 
essays, poster displays, research papers, public hearing papers, oral presentations, weekly 
homework assignments, and concept maps.  Each rubric stands on its own, but the general criteria 
in many rubrics are similar.  For example, rubrics for written assignments have the same criteria 
for acceptable style and grammar; responses must address the question, and arguments must be 
presented in a logical order [compare Figures 1 and 3].  Alternatively, a rubric designed to evaluate 
the mechanics of a poster display may include a checklist to guide the student in developing all of 
the sections of the poster.  Each component of the poster should then have additional criteria for 
evaluation.  For example: What are the criteria for the title of a poster?  Is the title informative?  Are 
specific key words used?  


Example 3.  Scoring Rubric for Essay Questions
Level of Achievement
General Presentation
Reasoning, Argumentation

Exemplary (10 pts)
∑ Provides a clear and thorough 
introduction and background
∑ Addresses the question
∑ Addresses the question
∑ Presents arguments in a logical 
order
∑ Uses acceptable style and grammar 
(no errors)

∑ Demonstrates an accurate and 
complete understanding of the 
question
∑ Uses several arguments and backs 
arguments with examples, data that 
support the conclusion


Quality (8 pts)
∑ Combination of above traits, but 
less consistently represented (1-2 
errors)
∑ Same as above but less thorough, 
still accurate

∑ Uses only one argument and 
example that supports conclusion


Adequate (6 pts)
∑ Does not address the question 
explicitly, though does so 
tangentially
∑ States a somewhat relevant 
argument
∑ Presents some arguments in a 
logical order
∑ Uses adequate style and grammar 
(more than 2 errors)

∑ Demonstrates minimal 
understanding of question, still 
accurate
∑ Uses a small subset of possible 
ideas for support of the argument.


Needs improvement (4 pts)
∑ Does not address the question
∑ States no relevant arguments
∑ Is not clearly or logically organized
∑ Fails to use acceptable style and 
grammar

∑ Does not demonstrate 
understanding of the question, 
inaccurate
∑ Does not provide evidence to 
support response to the question


No Answer (0 pts)






Step-by-Step Instructions
There are many routes to developing a useful scoring rubric, however, all of them involve the 
following five steps:
∑ Develop the goals for your course and daily class meetings
∑ Select the assessment tasks that provide data aligned with the goals
∑ Develop performance standards for each of the goals
∑ Differentiate performances (categories) based on well-described criteria.
∑ Rate (assign weight or value to) the categories 

 To provide a useful example of how these steps “play out” in a real world context, I will describe 
how I developed rubrics for my own introductory biology and ecology courses.
 
 
1. I developed the goals for my course and daily class meetings.  Keep in mind the assessment 
tasks must be linked to student learning goals and outcomes.  So writing goals is the first step.  
These are examples of stems and sample goals from introductory ecology or biology courses:

Students will be able to demonstrate their ability to: 
∑ utilize science as a process
∑ communicate an understanding of and links among biological principles
∑ write about, criticize and analyze concepts in biology
∑ use the process of scientific inquiry to think creatively and formulate questions about real-
world problems
∑ apply content knowledge in the resolution of real-world problems
∑ reason logically and critically to evaluate information
∑ argue science persuasively (in both written and oral format)
∑ illustrate the relevance of ecology to your lives by applying ecological knowledge in the 
resolution of real-world problems


2. I selected the assessment tasks.  
What type of assessment will provide me data about students’ achievement of each of these goals?

Based on the goals for my courses, I selected different forms of extended responses, both written 
and oral, and concept maps to gather the data that would convince me that my students achieved the 
goals.  The kinds of questions I asked students and the types of projects I assigned, were designed 
to promote students’ reasoning.  For example, for the first three goals I have listed, various types 
of assessment that could be used to gather the type of data desired.

∑ Utilize science -- performance assessment e.g., students conduct a scientific investigation
∑ Communicate an understanding of and links among biological principles -- e.g., concept maps, 
Vee diagrams, extended written responses (Novak and Gowin 1984, Novak 1998).
∑ Write about, criticize and analyze concepts in biology -- written critical analysis of articles and 
papers.



3. I developed a set of performance standards.
The performance standards I used in my introductory biology course on “logical reasoning” and 
“critically evaluating information” were different than the performance standards I developed for 
my upper division biology majors.  The difference was based on the developmental stages of the 
students and their experience in college-level science courses (Magolda 1992, King and Kitchener 
1994).


4. I differentiated performances based on criteria.
Examine the rubric for Quizzes and Homework.  The criteria for responses fall into two major 
categories:  general approach and comprehension.  Although these two categories are not discrete 
as indicated by the dotted line between them, students can see all of the itemized components of an 
exemplary answer.  These categories can be divided further.  For example, comprehension could 
be divided into content knowledge, conceptual understanding, and reasoning and critical thinking 
skills (Freeman 1994).  Freeman (1994) includes communication skills as a category in rubrics.  
Essentially, my rubrics cover the same categories; the difference is in the number of columns used.

Notice, when it is possible to quantify the categories, I did so.  So, for example, the criteria for 
acceptable style and grammar in an exemplary answer is based on no errors.

Our ability to differentiate among criteria is critical to the effectiveness of the scoring rubric.  So 
words like “good” are too subjective.  The criteria must be designed so that you and your students 
can discriminate among the qualities you consider important.

When we evaluate students’ extended responses, we tend not to score them point by point, 
however, by elaborating on the criteria that comprise the different levels of performance, we 
provide the students substantive guidance about what should be included in their extended 
responses.


5. I assigned  ratings (or weights) to the categories.
∑ Exemplary (5 pts) - highest category of college-level work
∑ Adequate (4 or 3 pts) - acceptable college-level work
∑ Needs Improvement (3 or 1 pts) - not yet college level-work
∑ No answer:  0 points

Point values: Do you assign points on a 5, 3, 1 scale? or a 5, 4, 3 scale?  I have tried both. I chose 
3 as the middle or as an adequate score.  Most student responses in this category can readily be 
improved through group work, practice, effort and instruction.  Therefore, in an effort to develop 
students’ self-efficacy and to promote their achievement of higher standards, I chose the 5,4,3 
point scheme.  

On a five-point scale, the data do not enable me to discriminate between two consecutive points, 
such as 3 and 4, in terms of evaluating the response.  Rather, three categories were readily 
distinguishable by my students and me, therefore, little if any time was spent “arguing” for points.  
The criteria for evaluation were clear and understood. 



Variations
Student roles
∑ I involve students in a dialogue about criteria that we use in any rubric.  Students gain a keen 
sense of my expectations for assessment by explicitly understanding the criteria and by 
contributing to the modification of criteria in a rubric to enhance clarity.

∑ Consider letting students develop class rubrics for certain assessments.  When students 
understand and describe criteria for their own performance, they are often better at attaining 
those standards.  My students developed the rubric for the poster displays of their laboratory 
research.  To accomplish this, they walked around the biology department looking at the 
variety of posters displayed on the walls and then determined their own criteria for what makes 
a quality poster presentation.  We collated this information and designed a rubric for content as 
well as format.

∑ Students use rubrics when completing any assessment task for the course such as writing in 
class, writing on an exam, designing homework, completing and investigation, preparing a 
research paper. 

Faculty Roles
∑ The critical factor for faculty to consider is that assessments must be linked to the goals of the 
course.   For example, if the goal is for students to demonstrate their ability to design a testable 
hypothesis in a particular content area - asking students to actually write a testable hypothesis 
would provide meaningful feedback.  The recurring question we must ask is, “Does this 
evidence convince us that students understand how to write a testable hypothesis?”

∑ Include rubrics on your web site and in your course packs.  Students should refer to rubrics 
while they are completing any assessment task.

∑ Rubrics are dynamic and involve a major up-front investment of time.

∑ You must provide students repeated instruction on how to use rubrics as well as how to 
achieve each of the criteria.  

Share with students samples of “exemplary”, “adequate”, “needs improvement” responses.  
Ask them to work in cooperative groups to analyze the strengths and weakness of the written 
responses, using the rubric as a guide.  With practice, students learn to recognize and 
ultimately develop their own exemplary responses. 

∑ The advantage of rubrics is that you and the students have well defined pathways for gathering 
evidence that they have achieved the goals of the course.  If either you or your students are 
dissatisfied with the evidence or criteria, the rubrics should be revised.  



Analysis
Rubrics are scoring tools that enable me to assign points to students’ assignments and tests.  
Students’ accumulation of points determines their grade in the course.  Each assignment, quiz, or 
test is weighted in terms of value in the overall course evaluation.  For example, daily writing 
samples (quizzes) are worth 5 points, twice weekly, 15 weeks per semester; hence a student can 
earn a maximum of 75 points for daily performance.  The pattern of students’ performance is 
consistent from semester to semester.  At the beginning of each semester, many students’ 
responses are below college-level.  As students begin to understand the criteria and practice 
writing, they attain college-level work or exemplary performance on short, five-point assignments 
or quizzes.  A key strategy in promoting improvement by all students is peer review within their 
cooperative groups.  

The formative assessment I gather by using rubrics to evaluate students’ responses during the 
course is valuable.  In-class writing assignments give me feedback about the nature of the task and 
questions I ask students.  The components of a question or task that provide meaningful responses 
are readily identifiable from the rubric and provide us insight into my students’ strengths and 
weaknesses.  I use these data to modify, change directions, or add components to our instructional 
design and strategies.


Pros and Challenges
∑ Faculty develop and communicate assessable course goals.
∑ Faculty and students understand and agree upon the criteria for assessment.
∑ Rubrics provide ways to evaluate many different types of assessment.

However:
∑ Time - rubric development requires time up front, but the payoff is in increased performance by 
the majority of students and which ultimately leads to less instructor time in assessment.
∑ Criteria - qualitative scales are more difficult to define than quantitative scales.
∑ Practice - both students and faculty need to practice and refine the use of rubrics for multiple 
types of assignments.  Time to do this in class will affect “coverage.”


Theory and Research
What is assessment?  Simply, assessment is data collection with a purpose.  In each of our 
courses, we engage in the process of gathering data about our students’ learning.  The type of data 
we gather depends on the evidence we will accept that students have learned what we want them to 
learn.  Generally, the data we collect are intended to be measures of students’ knowledge, attitudes 
and performance.  Ideally, these data are also matched or “aligned” with the goals of the course and 
our daily or weekly course activities.  

Four functions of assessment data are described by Hodson (1992): 
1. formative assessment provides diagnostic feedback to students and instructors at short-term 
intervals (e.g., during a class or on a weekly basis);
2. summative assessment provides a description of students’ level of attainment upon 
completion of an activity, module, or course; 
3. evaluative assessment provides instructors with curricular feedback (e.g., the value of a 
field trip or a writing assignment).  
4. educative assessment develops in students and instructors further insight and understanding 
about their own learning and teaching.  In effect, assessment IS a form of learning (NRC 
1996, p. 76).


We need confidence in the quality of the data we gather about our students if we want to justify our 
subsequent decisions about teaching.  Many of us who teach introductory science courses are 
dissatisfied with the type of evidence we are collecting about our students’ learning.  We admit that 
data from multiple choice tests measure inert bits of knowledge and some comprehension but 
provide us incomplete and inadequate feedback about our students’ learning.  We would like to use 
alternative forms of assessment to gather multiple, substantive forms of data about active student 
learning, such as understanding, analysis, reasoning, and synthesis (Ebert-May et al 1997).  These 
kinds of assessments include short answer items, essays, minute papers, oral communication, 
poster presentations, laboratory projects and research papers, but because of large class sizes and 
individual research priorities we have limited time to evaluate extended responses from students.  

Assessment is learning.  We and our students both benefit from meaningful assessment 
information about the achievement of the broader course goals.  Multiple assessment strategies can 
be implemented to provide evidence that students have or have not learned, have or have not 
accomplished the goals of the course.  Rubrics help us set well-defined standards for our students, 
provide students guidelines for achieving those standards and facilitate grading extended written 
and oral responses.  This feedback provides us data to interpret and make informed decisions about 
our students’ learning and our own teaching practice, similar to the process of data evaluation that 
we use daily in our scientific research.


Links
∑ Diane Ebert-May, Director, Lyman Briggs School and Professor, Botany and Plant Pathology, 
Michigan State University, East Lansing, Michigan.
ebertmay@pilot.msu.edu


Sources
∑ Ebert-May D, Brewer C, Allred S. 1997. Innovation in large lectures-teachings for active 
learning. Bioscience 47: 601-607.
∑ Freeman, RHL. 1994. Open-ended questioning: a handbook for educators. Menlo Park, 
California; Reading, Massachusetts; New York; Don Mills, Ontario; Wokingham, England; 
Amsterdam; Bonn; Sydney; Singapore; Tokyo; Madrid; San Juan; Paris; Seoul; Milan; Mexico 
City; Taipei. Addison-Wesley Publishing Company (The book is published by Innovative 
Learning™, an imprint of the Addison-Wesley Alternative Publishing Group.)
∑ King PM, Kitchener KS. 1994. Developing reflective judgement: understanding and 
promoting intellectual growth and critical thinking in adolescents and adults. San Francisco 
(CA): Jossey-Bass Publishers.
∑ MacGregor J. 1993. Student self-evaluation: fostering reflective learning. San Francisco (CA):  
Jossey-Bass Publishers.
∑ Magolda, MBB. 1992. Knowing and reasoning in college: gender-related students’ intellectual 
development. San Francisco (CA): Jossey-Bass Publishers.
∑ National Research Council. 1996. National science education standards. Washington (DC): 
National Academy Press.
∑ Novak JD, Gowin DB. 1984. Learning how to learn. New York: Cambridge University Press.


Diane Ebert-May
Freshman in college - my favorites.  Why?  Freshman are excited, energetic, and a bit wary about 
the challenge before them.  Perhaps the subliminal reason is that every year my freshmen are 18 
years old, so that must mean I am staying the same age too, right??

Anyhow, when I began teaching a large introductory biology course (600 students) I knew that my 
multiple choice tests were not providing me the kinds of data I wanted about my students' 
thinking, because I also knew that freshman can/do think!!  Second, I believed that my students 
needed to learn how to write and speak to explain themselves in the sciences as well as every other 
facet of their education, and it was my responsibility to assist all of them in this process.  On the 
other hand, I needed a reality check.  How would I find time to evaluate 600 writing samples, 
especially if I asked students to practice writing/speaking more than once throughout the semester?

So I stumbled upon the term "rubric," I learned what it meant, and I learned how to design rubrics 
from various sources in the literature - a special acknowledgement to BSCS (Biological Sciences 
Curriculum Studies) whose rubrics influenced my original thinking.  As I developed rubrics for 
each of my assessments, I forced myself to think more explicitly about the goals I wanted my 
students to achieve and the criteria I would use to monitor their progress.  Then I worked with my 
students to understand and practice achieving the goals and criteria with rubrics as a guide for 
communication.  I now can manage reading and evaluating large numbers of well-written and 
reasoned responses.  We all won.  On another note, because my students understand and use 
rubrics, I seldom, if ever, have individuals who "argue for points" on any given assignment.

Last year, I was recruited by Michigan State University to become the director of a residential 
science school within the College of Natural Science, the Lyman Briggs School.  Our faculty 
includes scientists, mathematicians and humanists who value their teaching as much as their 
research.  So I left the sunshine of northern Arizona to engage in this
great opportunity to continue my research in undergraduate science education, this time with 
science majors in a small college within a large university -- stay tuned.