University of Connecticut University of UC Title Fallback Connecticut

EPSY 5601 Honors Week 6

  • Instrument Reliability
    • Test Retest
    • Equivalent (Alternate or Parallel) Form
    • Scoring Agreement
      • Interrater
      • Percentage of Agreement
    • Internal Consistency
      • Split-Half
      • Kuder-Richardson 20
      • Kuder-Richardson 21 (questions are of equal difficulty)
      • Cronbach’s Alpha
  • Instrument Validity
    • Content (Face)
    • Criterion Related
      • Predictive
      • Concurrent
    • Construct
      • Factor Analysis
      • Convergent/Discriminant
  • Obtained Score = True Score + Error (test taker, test, testing condition, scoring)
  • Excel Reliability Calculator
  • Relationship between instrument reliability and validity

Action Research

  • Rationale
  • Calhoun’s Five Step Model
  • Stringer’s Interacting Spiral
  • Likert Scales
  • Instrument Design