Lesson Eight Standardized Test

Contents Components of a Standardized test Reasons for the Name “Standardized” Reasons for Using a Standardized Test Scaling & Norming

Components of a Standardized Test A test booklet, including test items & instructions to test takers An answer sheet An administration manual (for administrators) A technical manual (including uses of test, how it was developed, how it is to be scored, and how to interpret scores)

Reasons for the Name “Standardized” In terms of the format, content In terms of scoring procedures In terms of administration Time Location Price Condition

Reasons for Using a Standardized Test Convenience; well planned and developed (for its validity, reliability, and practicality) As a common basis to make decision about students (e.g., admission decision) As a diagnostic instrument to detect a student’s problem As part of formal program evaluation

Scaling & Norming Scaling: adjustment procedures  a given score on any form has the same meaning Adjust the differences between different versions TOEFL two years ago can be compared with TOEFL this year. Norming: give meaning to individual scores on standardized tests by reference to norms Age or grade Percentile ranks Stanine scale Standardized (z) scores