## Psychometric Theory |

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### Contents

Scaling Models | 53 |

Validity | 86 |

Internal Structure of Measures | 115 |

Copyright | |

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### Common terms and phrases

ability actual addition alternative applied approach assumed assumptions attribute average centroid Chap chapter characteristic coefficient common concerning consequently construct correct correlation covariance curve dependent determined developed dichotomous difficult discussed distribution domain elements employed equal error estimate example experiments explained factor analysis factor loadings follows formula frequently given highly illustrated important individual interval learning linear combination loadings mathematical matrix mean measurement mentioned method multiple obtained original partial particular persons placed positive possible practice predictive previously principles probability problem ratio reason referred regarding relationship relatively reliability respect responses root rotated sample scale selecting shown simple squared standard standard deviation statistical stimuli studies subjects Table tend theory tion total scores true scores types usually validity values vari variables variance vectors weights zero