Project source code of my quantitative research

1. CAT_IPD: Invented a non-parametric hypothesis testing to detect parameter shift in computerized adaptive testing
2. CDCAT_ONLINE: Online calibration for Cognitive Diagnostic Model in computerized adaptive testing
3. Sequetial Search Q validation: Mining Student Response Data for Knowledge using Q-matrix Method
4. Stepwise: Using stepwise method to detect parameter shift in test items.