August 2019 Lecture

Thank you for your interest in the August 2019 Lecture


Dr. Samuel Ortiz

Saturday, August 24

9am - 4pm


This presentation provides a review of the relationship among linguistic, cognitive, and academic development and the application of research regarding EL evaluation within a practical, systematic framework. Specific procedures are presented which permit any evaluator to conduct assessments of English learners that generate valid data to support conclusions and diagnostic decisions regarding English learners. 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, integration of the Ortiz PVAT in conducting EL evaluations. 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 constitutes defensible and current best practices.

Learning Objectives: In general, following the workshop, participants will be able to-

  • Understand the true nature of bias in testing as a function of construct validity. 
  • Identify the two main variables that affect test score validity for English learners
  • 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.
  • Integrate the Ortiz PVAT to enhance the quality and diagnostic validity of testing
  • Use a systematic process for evaluation of English learners that constitutes current best practice


School psychologists will receive 6 NASP-approved credits for attendance.

**This is a full day workshop with an hour lunch break**


UNLV - Carlson Education Building (CEB), Room 218

The lecture will live-stream to our participants in Reno, NV.

Reno viewing will take place at Depoali Middle School


Register Now

Location and Parking Map


A special thank you to the UNLV College of Education, School Psychology program for co-sponsoring this workshop! 




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