Purposive school sampling plus careful document coding, cleaning, and archiving for longitudinal assignment and student-work research¶

Strategy · All strategies
Evidence · no claims cited

Description¶

The project selected an initial purposive sample of 11 networks and then two or three schools each, intending "to create a purposive sample of schools that would allow us to understand reasons for more or less successful development." Every assignment and piece of student work received a unique identification code; identifiers were cleaned off to protect confidentiality and prevent scorer bias; and documents were archived electronically and physically by subject, school, assignment type, and collection number for retrieval and scoring.

Design Implications¶

Context¶

Requirements¶

• A streamlined data-management system with strong attention to detail, consistent ID coding across years, and fieldworkers individually trained in cleaning documents

Constraints¶

• The purposive sample cannot be used to generalize to all Chicago public schools, as the manual states

Target Learners¶

• Researchers studying classroom assignments and student work in public school settings

Target Learning Goals¶

• Understanding how school reform develops organizations and how that benefits student learning

Related Strategies¶

Examples¶

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Key Sources¶

• Lb0