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Work Session 1 Locating Baseline Data Office of Research, Evaluation and Policy Studies Ximena D. Burgin, Ed.D. November 30 th, 2010
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Databases Restricted Databases Public Databases Commercial Databases Your Own
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Restricted Databases: Institute of Education Sciences (IES): Assessments Early Childhood Elementary / Secondary International Library Postsecondary
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Public Databases: Illinois Interactive Report Card (IIRC):
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Commercial Databases: Survey of Enacted Curriculum
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Commercial Databases: California Critical Thinking Skills Survey
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Your own: Alcohol, Tobacco, and Other Drug (ATOD)
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Data Collection Techniques to collect data Observations Interviews Questionnaires (open- ended questions) Documents Audiovisual materials Qualitative Exploration of the unknown. Understanding of a central phenomena. Quantitative Trends or explanation of relationships among variables.
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Data Analysis Textual analysis (Qualitative) Perform preliminary exploratory analysis Code the data Create themes Summarize findings (choose narrative discussion) Statistical analysis (Quantitative) Descriptive statistics Inferential statistics
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Sample of ATOD Survey Questions
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Validity “Whether an instrument measures what it is suppose to measure” Appropriateness, correctness, meaningfulness, and usefulness of the specific inferences made from data
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Reliability Consistency of scores obtained from individuals Are results repeatable from one administration of instrument to another?
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Validity and reliability
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Assessing reliability Test-retest reliability Alternate (Parallel) forms reliability Alternate (Parallel) forms & test-retest reliability Internal consistency reliability Inter-Rater or Inter-Observer reliability
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Internal consistency reliability
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Inferential statistics Generalizing from samples to populations
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