NotesFAQContact Us
Collection
Advanced
Search Tips
Descriptor
Latent Trait Theory2
Mathematical Models2
Multiple Choice Tests2
Achievement Tests1
Adaptive Testing1
Data Analysis1
Elementary Secondary Education1
Estimation (Mathematics)1
Goodness of Fit1
Item Analysis1
Junior High Schools1
Test Items1
Verbal Tests1
Vocabulary Skills1
More ▼
Source
Author
Samejima, Fumiko2
Trestman, Robert L.1
Publication Type
Numerical/Quantitative Data2
Reports - Research2
Education Level
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
Iowa Tests of Basic Skills2
What Works Clearinghouse Rating
Showing all 2 results Save | Export
Analysis of Iowa Data I: Initial Study and Findings. Research Report 80-1.
Samejima, Fumiko; Trestman, Robert L. – 1980
The first step of the data analysis with respect to the eventual application of the various new methods in latent trait theory is here initiated. The data are a set of approximately 500 item responses of each of 7,439 examinees to the Iowa Tests of Basic Skills, Form 6, on one of three difficulty levels, which correspond to the ages of 11, 12 and…
Descriptors: Achievement Tests, Data Analysis, Goodness of Fit, Junior High Schools
Plausibility Functions of Iowa Vocabulary Test Items Estimated by the Simple Sum Procedure of the Conditional P.D.F. Approach.
Samejima, Fumiko – 1984
Simple sum procedure of the conditional PDF approach (plausiblity of distractor function) combined with the normal approach method was applied for estimating the plausibility functions of the distractors of the Level II vocabulary subtest items of the Iowa Tests of Basic Skills. In so doing, the normal ogive model was adopted for the correct…
Descriptors: Adaptive Testing, Elementary Secondary Education, Estimation (Mathematics), Item Analysis