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Modelling Norms with the Beta-Binomial Distribution16 days ago
Introduction | Mathematical Derivation | Prerequisites | Modeling Example | Data Preparation | Model Fitting | Post stratification and weighting | Generation of Norm tables | Simulation Study | Results and discussion
Demonstration for Creating Continuous Norms with cNORM1 months ago
Introduction | Mathematical Background | In a nutshell: Establishing continuous norming models | Data Preparation and modelling | Representativeness of the data base | Weighting | Determining the norm sample size | Data preparation | Calculation of Manifest Norms and Modeling | Model Selection | Generating Norm Tables | predictNorm | predictRaw | normTable | rawTable | Combining cNORM with IRT-based ability estimates | Useful Tools | Plot of raw scores | Plot of norm scores | Probability Density Function | Curve analysis of the regression function | References
Modelling Norms with the Sinh-Arcsinh (shash) Distribution9 months ago
Mathematical Foundation | Modeling the Sinh-Arcsinh over Age | Application and Prerequisites | Model Selection Considerations | Modeling Example | Basic Model Fitting | Custom Model Specifications | Post-Stratification and Weighting | Norm Score Generation | Model Comparison and Selection | Comparing Distributional Approaches | Decision Framework | Conclusion | References
Weighted Regression-Based Norming1 years ago
Enhancing Representativeness with Weighted Regression-Based Norming in cNORM | Impact of Non-Representative Norm Samples | Raking: Enhancing Sample Representativeness through Iterative Proportional Fitting | Integration of raking weights in regression-based norming in cNORM | Step 1: Computation and standardization of raking weights | Step 2: Weighted percentile estimation | Step 3: Regression-based norming with standardized regression weights | Example | Caveats and recommendation for use | References