Presentation on theme: "Cutoff Points Patrick Traynor, Ph.D., Director of Assessment and Evaluation Colton Joint Unified School District"— Presentation transcript:
Cutoff Points Patrick Traynor, Ph.D., Director of Assessment and Evaluation Colton Joint Unified School District www.PatrickTraynor.com Patrick_Traynor@colton.k12.ca.us ACSA Conference November 2, 2006 San Diego Aligning District Assessments to STAR CST Bands
Distribution of 2004-05 Seventh Grade Students (%) In 2004-05 Semester 1 Bands According to 2004-05 ELA CST Band Using Original Cutoffs
Distribution of 2004-05 Seventh Grade Students (#) In 2004-05 Semester 1 Bands According to 2004-05 ELA CST Band Using Current Cutoffs
Percentage of Kids in Each ELA CST Band Who Received Each Semester Exam Raw Score
From Raw Score ELA Semester 1 Grade 7 ELA CST Band NMeanStd. Dev. 5 (Advanced)8958.163.067 4 (Proficient)41752.844.301 3 (Basic) 636 44.176.792 2 ( Below Basic ) 40035.247.801 1 ( Far Below Basic )15328.698.930
% Distribution with Means of Students within Each ELA CST Band 58.16 52.84 44.18 35.24 28.69
The Four Cut Points on Each Exam Should –Separate the students into five corresponding bands 12345 Far Below Basic Below BasicBasicProficientAdvanced – Optimize % of students who scored in a particular ELA band within their corresponding semester exam band – For example,...
% Distribution with Means of Students within Each ELA CST Band 58.16 52.84 44.18 35.24 28.69 Cut point maximizes % of ELA CST Advanced Proficient Kids who receive a placement level of 5 of the End of Semester Exam and... % ELA CST Proficient Kids who receive a 4 on the End of Semester Exam 54321
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