Item Analysis

  • Proportion endorsing each response option
  • Option standard deviation
  • Flexible scoring allows user to assign score value to each option
  • Partial credit and multiple correct answers allowed
  • Point-biserial correlation
  • Biserial correlation
  • Test score descriptive statistics (see list of statistics above)
  • Reliability methods include Guttman’s lambda 2, Cronbach’s alpha, Feldt Gilmer coefficient, Feldt-Brennan coefficient, and Raju’s beta
  • For a given method of reliability, the reliability and standard error of measurement if item deleted is optionally provided
  • 95% confidence interval provided for Cronbach’s alpha
  • Standard error of measurement
  • Conditional standard error of measurement at cut-score
  • Huynh’s decision consistency and raw agreement indices and standard errors