Download - Ncme april 30 2013 saad chahine
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Investigating Educators’ Statistical Literacy and Score Report Interpretation
Saad Chahine, PhD April 30, 2013 NCME | San Francisco
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Direction
• Need for research on how educators read and interpret score reports
• Current research focuses on the culture of data use in schools
• This research study asks the question:
How can the design score reports support the utility of achievement data by personnel in the school system?
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Research Questions
1. How are educators proficient in statistical literacy?
2. How do educators interpret and propose to use test score reports?
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Statistical Literacy
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Score Report Interpretation
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Conceptual Framework
“habit of mind” as a metaphor
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Methods
• Cognitive interviews with 20 educators
• Statistical literacy tasks
• Two mock score reports
• Six stage protocol analysis
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Example Statistical Literacy Task
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Coopers Score Report ππ
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Jabberwocky Score Report ππ
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13-04-30 Mount Saint Vincent University 11
Skill Minimum Maximum Mean Std. D.
Statistical Literacy
Describing 3.00 4.00 3.77 0.24
Organizing and Reducing 2.00 4.00 2.89 0.65
Representing 1.67 4.00 3.33 0.65
Analyzing and Interpreting 2.00 4.00 3.38 0.53
Score Report Interpretation: Cooper’s Fitness Test Score Report
Describing 4.00 4.00 4.00 0.00
Summarizing 3.00 4.00 3.75 0.44
Questioning 1.00 4.00 2.10 0.09
Proposed Application 1.00 4.00 2.45 1.10
Score Report Interpretation: Jabberwocky Test Score Report
Describing 4.00 4.00 4.00 0.00
Summarizing 3.00 4.00 3.75 0.44
Questioning 1.00 4.00 1.95 0.89
Proposed Application 1.00 4.00 2.00 0.97
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Discussion P1
• Data Habit of Mind represents a starting point
• Educators on average appear to have well developed statistical literacy skills
• Educators on average appear to struggle on score report interpretation skills: Questioning & Proposing an Application
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Discussion P2
• We can begin to identify clusters and patterns
• Potentially there are four ways in which we can cluster the patterns that we see when it comes to data habit of mind
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4-Way Data Habit of Mind
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