Psychometric Testing

age.character | Age conversion: from numeric to character |

age.completed | Age calculation from dates |

age.numeric | Age conversion: from character to numeric |

age.segment | Grouping by age segmentation |

average.r | Average reliability |

bubble.plot | Bubble plot |

cronbach.alpha | Cronbach's alpha |

cronbach.strata | Stratified Cronbach's alpha |

drive | Secure drive project |

dropitem | Internal consistency reliability |

entropy | Entropy index |

explode | Score explosion |

implode | Score implosion |

integer.counts | Count integer values |

is.continuous | Check for continuity |

is.monotonic | Check for monotony |

item.shuffle | Items shuffling |

item.split | Split items |

knn.impute | Missing data replacement by k-Nearest Neighbour |

kr20 | Kuder-Richardson formula 20 |

na.impute | Missing data imputation |

normalize | Vector rescaling |

parallel | Parallel analysis |

perc2std | Percentile conversion |

percrank | Percentile Ranks |

raw2std | Conversion of Raw Scores from a Norm Table |

rawscore | From Standard Scores to Raw Scores |

reverse | Score reversing |

roc.curve | Receiver Operating Characteristic curve |

roc.table | Receiver Operating Characteristic table |

rollup | Score intervals |

rounding | Rounding of numbers |

se.measure | Standard error of measurement |

sim.attitude | RaRandom responses for attitude tests |

splithalf | Split-half reliability |

std2perc | Standard scores conversion |

stdscore | From raw scores to standard scores |

write.fwf | Export data in a fixed-width format |

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