EDU 385 Session 10 Writing Supply Items Short Answer and Essay.

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Presentation transcript:

EDU 385 Session 10 Writing Supply Items Short Answer and Essay

Bell Work Sister Thorne will review the prior information from the last session

Content Objectives Understand the strengths and limitations of short-answer test items

Language Objectives 1. Describe the strengths and limitations of short-answer test items 2. Distinguish well-stated and poorly stated short-answer test items 3. Identify and correct faults in poorly stated short-answer test items 4. Match short-answer test items to intended learner outcomes 5. Construct short-answer test items that are well stated and extended- response 6. Describe the strengths and limitations of essay questions 7. Distinguish between restricted-response and extended-response essay questions 8. Describe the strengths and limitations of essay questions 9. Write essay questions that present a clear task, are relevant to important learning outcomes and provide guidelines for scoring 10. Score essay answers more effectively

Academic Vocabulary Short Answer Items Restricted-Response Essay Extended-Response Essay Alternative-Response Items Complex Learning Outcomes Student Bluffing

Selection vs. Supply Type Items Selection-type test items can be designed to measure a variety of learning outcomes from simple to complex Tend to be favored in achievement testing Greater control of type of response students can make Broader sampling of achievement Quicker and more objective scoring Despite these advantages Supply-type test items can play an important role in measuring achievement

Supply-Type Items Supply-type test items require students to produce the answer May be single word or several page response Length of response ranges along a continuum, but usually divided into: Short answer Restricted-response essay Extended-response essay

Supply-Type Item Continuum Highly High Controlled Freedom of Response Response Short-Answer Item Restricted-Response Item Extended-Response Item Outcomes Measured Outcomes Measured Outcomes Measured Knowledge Knowledge Understanding Computational Understanding Application Skill Application Analysis Analysis Evaluation Creating

Short-Answer Items Strengths Limitations 1. It is easy to write test items 2. Guessing is less likely than in selection-type test items 3. This test item type is well-suited to computational problems and other learning outcomes where supplying the answer is important 4. A broad range of knowledge outcomes can be measured Limitations 1. It is difficult to phrase statements so that only one answer is correct 2. Scoring is contaminated by spelling ability except when responses are verbal 3. Scoring is tedious and time-consuming 4. This item is not very adaptable to measuring complex learning outcomes

Short-Answer Items Require the examinees to supply appropriate words, numbers, or symbols to answer a question or complete a statement Example What are the incorrect responses in a multiple-choice item called? (distractors) The incorrect responses in a multiple-choice item are called (distractors) Can include computational problems and any simple item form that requires the answer rather than selecting it Primarily used to measure simple recall of knowledge

Short-Answer Items Short-answer appears easy to write but may be difficult to construct so only one answer is correct several other defendable answers could be given spelling may be a problem does word have to be spelled correctly? if so may penalize poor speller who knows answer if not may have difficulty determining if misspelled word is the correct response (requires subjectivity) Due to these difficulties short-answer items should be reserved to recall specific information where the answer is obvious

Rules for Writing Short-Answer Items 1. State the item so that only a single, brief answer is possible *Requires skill in phrasing and precise terms *What appears as simple and clear questions can often be answered in different ways *Review the item with this in mind

Rules for Writing Short-Answer Items 2. Start with a direct question and switch to an incomplete statement only when greater conciseness is possible by doing so -The use of direct questions increases likelihood that problem will be stated and that only one answer will be appropriate -Incomplete sentences tend to be less ambiguous when based on problems first stated as sentences Example What is another name for true-false items? (alternative-response items) True-false items are also called (alternative-response items)

3. It is best to leave only one blank, and it should relate to the main point of the statement Leaving several blanks is often confusing and the answer to one blank may depend on the answer in another Examples (Poor and Better) In terms of response, the (matching item) is most like the (multiple-choice items) In terms of type of responses, which item is most like the matching item? (multiple-choice) It is important to avoid asking students to respond to unimportant aspects of a statement

4. Place the blanks at the end of the statement -This allows student to read the complete problem before coming to the blank to be filled (avoids having to re-read the sentence -Easier to construct incomplete statements Examples (Poor and Better) The supply-type item used to measure the ability to organize and integrate material is called an (essay item) Supply-type items used to measure the ability to organize and integrate material are call (essay items)

5. Avoid extraneous clues to the answer (i. e 5. Avoid extraneous clues to the answer (i.e., extra unnecessary information) -A Common clue is length of the blank (e.g., long blank for long answer, short blank for short answer) -All blanks should be uniform in length -Another common clue is use of the indefinite article “a” or “an” just before the blank Examples (Poor and Better) The supply-type item used to measure the ability to organize and integrate material is called an (essay item) Supply-type items used to measure the ability to organize and integrate material are called (essay items) -Poor version (the article “an”) eliminates the only other supply-type item choice “short-answer” -Solution - eliminate the article “an” or include both articles a(an) -Use plural verb as in Better example

6. The numerical answers indicate the degree of precision expected and the units in which they are expressed -Example “nearest whole number” -Specify the degree of precision prevents the student from spending too much time on the problem -Provides more uniform responses

Checklist for Evaluating Short-Answer Items 1. Is this type of item appropriate for measuring the intended learning outcome? 2. Does the item task match the learning task to be measured? 3. Does the item call for a single, brief answer? 4. Has the item been written as a direct question or a well-stated incomplete sentence? 5. Does the desired response relate to the main point of the item? 6. Is the blank placed at the end of the statement? 7. Have clues to the answer been avoided (e.g., “a” or “an”, length of blank) 8. Are the units and degree of precision indicated for numerical answers?

Essay Questions Provide greater freedom of response for students as to: Choice on how to approach problem What factual information to use The degree of emphasis to place on each aspect of the response Essay questions especially useful for measuring the ability to organize, integrate, and express ideas Areas where selection-type items fall are inadequate Essays and selection-type items complement each other

Summary Comparison of Selection-Type Items and Essay Selection-Type Items Essay Questions Learning Outcomes Measured Good for measuring the recall of knowledge under-standing and application levels of learning, inadequate for organizing and expressing ideas Ineffective for measuring the recall of knowledge; best for the ability to organize, integrate and express ideas Sampling of content The use of a large number of items results in broad coverage, which makes representation sampling of content feasible The use of a small number of items limits coverage, which makes representative sampling of content infeasible Preparation of Items Preparation of good items is difficult and time consuming Preparation of good items is difficult but easier than selection-type items Scoring Objective, simple and highly reliable Subjective, difficult, and less reliable Factors Distorting Scores Reading ability and guessing Writing ability and bluffing Probable Effect on Learning Encourages students to remember, interpret, and use the ideas of others Encourages students to organize, integrate, and express their own ideas

Types of Essay Questions Restricted Response Questions -Places strict limits on the answers to be given as defined -Boundaries of subject matter narrowly defined by the problem and specific form of the answer -Indicated by words as “list,” “define,” and “give reasons” Example Describe the relative merits of selection-type items and essay questions for measuring learning outcomes at the understanding level. Confine your answer to one page Mr. Rogers a ninth-grade science teacher, wants to measure his students’ “ability to interpret scientific data” with a paper-and pencil test 1. Describe the steps that Mr. Rogers would follow, 2. Give reasons to justify each step

Types of Essay Questions Extended Response -Provide students almost unlimited freedom to determine the form and scope of their response -Some practical limits may be imposed such as time and page limits -Students given sufficient freedom to demonstrate skills of evaluating and creating Example (Evaluation Outcome): (The student is given a complete achievement test that includes errors or flaws in the directions, in the test itms and in the arrangement of the items) Write a critical evaluation of this test using as evaluative criteria the rules and standards for test construction described in your textbook. Include a detailed analysis of the test’s strengths and weaknesses and an evaluation of its overall quality and probable effectiveness

Essay Questions Strengths Limitations 1. The highest level learning outcomes (analyzing, evaluating, creating) can be measured 2. Preparation time is less than for selection-type items 3. The integration and application of ideas is emphasized Limitations 1. There is an inadequate sampling of achievement in time needed for answering each question 2. It is difficult to related to intended learning outcomes because of freedom to select, organize, and express ideas 3. Scores are raised by writing skill and bluffing and lowered by poor handwriting, misspelling, and grammatical errors 4. Scoring is time consuming, subjective, and tends to be unreliable

Rules for Writing Essay Questions 1. Use essay questions to measure complex learning outcomes only -Preferred use of Essay tests: to give reasons, explain relationships, describe details, formulate conclusions -At Evaluating and Creating levels objective tests and restricted response tests have limited value -Evaluation of a novel or an experiment requires extended-response questions -The Essay Question contribute most uniquely at this level

Rules for Writing Essay Questions 2. Relate the question as directly as possible to the learning outcome being measured -Each question should be specifically designed to measure one or more well-defined outcomes -Start with precise description of performance to be measured -To help student focus on the outcomes to be measured tell the students the criteria on which their response will be evaluated Example: Your answer will be evaluated in terms of its comprehensiveness, the relevance of its arguments, the appropriateness of its examples, and the skill with which it is organized

Rules for Writing Essay Questions 3. Formulate questions that present a clear task to be performed -Avoid starting a sentence with words such as: who, what, when, where, name, and list - they limit the response to recall of knowledge outcomes -Instead use words as why, describe, explain, compare, relate, contrast, interpret, analyze, criticize, and evaluate -A good check for phrasing a restricted response question is to write a model answer or a mental answer to the question -Helps identify ambiguity and approximate time need -For extended-response ask one or more colleagues to read the question to see if it is understood and clear

Rules for Writing Essay Questions 4. Do not permit a choice of questions unless the learning outcomes require it -Makes student comparisons more difficult -With optional choices students will select the question to which they are best prepared to answer (limits ability to sample their overall knowledge of the subject) -May be appropriate if only measuring writing skills or creativity

Rules for Writing Essay Questions 5. Provide ample time for answering and suggest a time limit on each question -Time must be allowed students for thinking as well as writing, thus generous time limits should be provided -In measuring complex achievement it is better to use a few questions and to improve sampling test more frequently -Inform students of approximate time they should spend on each question also may want to set page limits for the answers

Types of Complex Outcomes and Related Terms for Writing Essay Questions Outcome Sample Terms Comparing compare, classify, describe, distinguish between, explain, outline, summarize Interpreting convert, draw, estimate, illustrate, interpret, restate, summarize, translate Inferring derive, draw, estimate, extend, extrapolate, predict, propose, relate Applying arrange, compute, describe, demonstrate, illustrate, rearrange, relate, summarize Analyzing break down, describe, diagram, differentiate, divide, list outline, separate Creating compose, design, devise, draw, formulate, make up, present, propose Synthesizing arrange, combine, construct, design, rearrange, regroup, relate, write Generalizing Construct, develop, explain, formulate, generate, make, propose, state Evaluating appraise, criticize, defend, describe, evaluate, explain, judge, write

Rules for Scoring Essay Answers 1. Evaluate answers to essay questions in terms of the learning outcomes being measured 2. Score restricted-response answers by the point method, using a model answer as a guide 3. Score extended-response answers by the rating method, using defined criteria as a guide 4. Evaluate all the students’ answers to one question before proceeding to the next question 5. Evaluate answers to essay questions without knowing the identity of the writer 6. Whenever possible, have two or more persons grade each answer

Student Bluffing and Scoring Essays Students can obtain higher scores on essay questions by clever bluffing. Although this requires skill in writing and some knowledge of the topic, credit should not be given unless the question is specifically answered. Some common types of bluffing are listed below 1. Student repeats the question in statement form (slightly paraphrased) and tells how important the topic is (e.g., the role of assessment in teaching is extremely important. It is hard to imagine effective instruction without it, etc.) 2. Student writes on a well-known topic and fits it to the question (e.g., a student who knows testing, well but knows little about performance assessment and is asked to compare testing and performance assessment might describe testing in considerable detain and frequently state that performance assessment is much superior to evaluating the type of leaning assessment by the tests) 3. Student liberally sprinkles the answer with basic concepts regardless of whether they are understood (e.g., when asked to write about any assessment technique, the importance of “validity” and “reliability” is mentioned frequently) 4. Student include the teacher’s basic beliefs whenever possible (e.g., “The intended learning outcomes must be stated in performance terms before this type of test is constructed or selected”)

Checklist for Evaluating Essay Questions 1. Is this type of item appropriate for measuring the intended leaning outcome? 2. Does the item task match the learning task to be measured? 3. Is the question designed to measure complex learning outcomes? 4. Does the question make clear what is being measured and how the answer will be evaluated? 5. Has terminology been used that clarifies and limits the task (e.g., describe not discuss)? 6. Are all students required to answer the same questions? 7. Has an ample time limit been indicted for each question? 8. Have adequate provisions been made for scoring answers (e.g., model answers or criteria for evaluating)

Summary of Points 1. Use supply-type items whenever producing the answer to an essential element in the learning outcome (e.g., defines terms, instead of identifies meaning of terms 2. Supply-type items include short-answer items, restricted-response essay, and extended-response essay 3. The short-answer item can be answered by a word, number, symbol, or brief phrase 4. The short-answer item is limited primarily to measuring simple recall or knowledge outcomes 5. Each short-answer item should be so carefully written that there is only one possible answer, the entire item can be read before coming to the answer space, and there is no extraneous clues to the answer In scoring short-answer items, give cred for all correct answers and score for spelling separately

Summary of Points 7. Essay questions are most useful to measuring the ability to organize, integrate, and express ideas 8. Essay question are inefficient for measuring recall of knowledge because they provided limited sampling, are influenced by extraneous factors (e.g., writing skills, bluffing, grammar, spelling, handwriting), and scoring is subjective and unreliable 9. Restricted-response essay questions can be more easily written and scored, but due to limitations on the responses they are less useful for measuring the higher-level outcomes (e.g., integration of diverse materials) 10. Extended-response essay questions provide the freedom to select, organize, and express ideas in the manner that seems most appropriated; therefore, they are especially useful for measuring such outcomes

Summary of Points 11. Essay questions should be written to measure complex learning outcomes, to present a clear task, and to contain only those restrictions need to call forth the intended response an provide for adequate scoring 12. Essay questions should be scored by focusing on the intended response, bu using a model answer or set of criteria as a guide, by scoring question by question, and by ignoring the writers identity. Be wry of student bluffing. If an important decision is to be based on the results, tow or more competent scorers should be used

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