Winter 2020 Dr. Ortiz Workshop
Evidence-based Evaluation of English Learners: A contemporary approach to testing for all practitioners
with Dr. Sam Ortiz
Wednesday, January 8, 2020
9:00am - 4:oopm
San Mateo County office of Education
101 Twin Dolphin Dr. Redwood City, CA 94065
BAASP members $30, Non-members $50, $20 for CEUs
This presentation outlines an evidence-based approach to evaluating English learners with emphasis on contemporary methods for using tests in a nondiscriminatory manner. Specific procedures are presented which permit any evaluator to conduct assessments of English learners in a manner that can generate valid data to support conclusions and diagnostic decisions. Advances in tests and testing will be presented, including the dual-norming feature of the Ortiz PVAT and its utility in resolving the question of “difference vs. disorder.” Topics include: understanding bias in testing; issues regarding test score validity; advantages and disadvantages of typical methods for evaluating English learners; the importance of “true peer” comparisons, research foundations and use of the Culture-Language Test Classifications and Interpretive Matrix, and application of the new Ortiz PVAT for evaluation of both native English speakers and English learners via a dual-norming feature that controls for relative exposure in learning English. The knowledge and skills gained will be useful to practitioners at all levels and provides a solid base for engaging in evaluation of English learners that incorporates contemporary research and advances in tests and testing.
Learning Objectives: In general, following the workshop, participants will able t:o:
- Understand the true nature of bias in testing as a function of construct validity.
- Identify the limitations of various approaches to testing English learners and the extent to which validity is undermined by cultural and linguistic factors.
- Apply research findings in a manner that permits a “true peer” comparison for English learners
- Learn how to apply and use the Culture-Language Test Classifications and Interpretive Matrix as a method for evaluating the extent to which cultural and linguistic factors may have compromised the validity of test performance and results.
- Explain the dual-norming structure of the Ortiz PVAT and its relevance to testing.
- Draw valid conclusions regarding Gc/language ability as guided by results from the Ortiz PVAT
- Engage in competent and valid evaluation of any individual regardless of language background