general information iowa writing assessment the riverside publishing company, 1994 $39.00: 25 test...
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General Information
• Iowa Writing Assessment
• The Riverside Publishing Company, 1994
• $39.00: 25 test booklets, 25 response sheets
• 40 minutes to plan, write and edit
• 4 tests in the battery
Purpose
“The purpose of this test is to see how well you organize and express your ideas in writing.”
Nature of Test
Narrative Descriptive Persuasive Expository
given to grades 3-12
4 types of writing
SCORING
Holistic scoreor
Analytical score
Done locally according to guidelines
2 raters - average of the 2
Raw score = criterion referenced information (can be converted)
Standardization Sample
Samples of student work collected during a 2 week period in October 1992Approximately 20,000 papers from 323 buildings in 32 statesSeparate norms developed for each grade and each writing promptPercentile bands and ranks provided with the test literatureStandard setting procedures: manuals, scoring protocols, anchor papers, training papers, & teacher training.
Reliability - quantitative assessment of
consistency for…..
• Reader reliability
From one scorer to another
Spearman-Brown formula
Average across-score scale combined with average across-grade score = 0.73-0.76
• Score reliability
Derived from a portion of the national standardization sample
Responded in same mode of writing
Average across-score scale combined with average across-grade score = 0.43-0.52….LOW
Qualitative scores lower due to subject matter, writing modes, and small number of tasks
Validity
• Technical manual mentions content - related evidence
• No mention of criterion-related evidence
• No mention of construct related evidence
Mental Measurement Yearbook
After careful research, no mention of the Iowa Writing Assessment was found.
Strengths of the Assessment• Performance based
• Product based• Meets the target• Clearly defines:
– Grade levels– Traits of writing
• Well written prompts• Illustrations for primary
levels• Relevant to classroom
instruction
Weaknesses of Assessment
• Time for completion
• Reliability of reader-raters
• Criterion & construct related evidence not provided
Recommendation
Use scores with caution– Subjectivity of reader/raters– Weakness of reliability of test
Do Not interpret scores as a summative score of student achievement
Do use as a broad reflection of student achievement
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