The Dependability and Interchangeability of Assessment Methods in Science
BACKGROUND
RESEARCH QUESTIONS
DESIGN
PPT Slide
TASK 1 Instructions to Students
Sample
Mean Scores by Task, Rater, and Occasion
Results of Generalizability Analysis for Paper-and-Pencil Scores p x t x r Design (Occasion 1)
Results of Generalizability Analysis for Hands-0n Scores p x t x r Design (Occasion 1)
Generalizability Analysis Results for Hands-on Scores: p x t x r x o Design
Generalizability Analysis Results for Paper-and-Pencil Scores: p x t x r x o Design
Instability of Scores Across Occasions Percentage of students showing changes in scores from Occasion 1 to Occasion 2:
Generalizability Coefficients for One Occasion Using Different Numbers of Tasks
Students' responses changed in substantive ways:
Interchangeability of Assessment Methods
Implications
Conclusions
Implications:
Email: wilby@cse.ucla.edu
Home Page: http://www.cse.ucla.edu
Download presentation source