Continuous Norming

bestModel | Retrieve the best fitting regression model based on powers of... |

boxcox | Generate box cox power function for regression model at... |

calcPolyInL | Internal function for retrieving regression function... |

CDC | BMI growth curves from age 2 to 25 |

checkConsistency | Check the consistency of the norm data model |

cNORM | cNORM: Continuous Norming |

cnorm.cv | Cross validation for term selection |

cNORM.GUI | Launcher for the graphical user interface of cNORM |

computePowers | Compute powers of the explanatory variable a as well as of... |

derivationTable | Create a table based on first order derivative of the... |

derive | Derivative of regression model |

elfe | Sentence completion test from ELFE 1-6 |

getNormCurve | Computes the curve for a specific T value |

life | Life expectancy at birth from 1960 to 2017 |

mortality | Mortality of infants per 1000 life birth from 1960 to 2017 |

normTable | Create a norm table based on model for specific age |

plotBoxCox | Plot regression model versus box cox for a specific age |

plotDensity | Plot the density function per group by raw score |

plotDerivative | Plot first order derivative of regression model |

plotNorm | Plot manifest and fitted norm scores |

plotNormCurves | Plot norm curves |

plotPercentiles | Plot norm curves against actual percentiles |

plotPercentileSeries | Generates a series of plots with number curves by percentile... |

plotRaw | Plot manifest and fitted raw scores |

plotSubset | Evaluate information criteria for regression model |

ppvt | Vocabulary development from 4 to 16 |

predictNorm | Retrieve norm value for raw score at a specific age |

predictNormBC | Calculate the norm value for a given raw value based on the... |

predictRaw | Predict single raw value |

predictRawBC | Calculate the raw score for a given percentile based on the... |

prepareData | Set up example dataset and compute model |

printSubset | Convenience method for printing model selection information |

rangeCheck | Check for horizontal and vertical extrapolation |

rankByGroup | Determine the norm scores of the participants in each... |

rankBySlidingWindow | Determine the norm scores of the participants by sliding... |

rawTable | Create a table with norm scores assigned to raw scores for a... |

regressionFunction | Regression function |

simMean | Simulate mean per age |

simSD | Simulate sd per age |

simulateRasch | Simulate raw test scores based on Rasch model |

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