Réliabilitas (statistika): Béda antarrépisi

Dina [[statisticsstatistika]], '''reliabilitasréliabilitas''' nyaetahartina runtuyan ukuran nu angger atawa alat keur ngukur. ReliabilitasRéliabilitas henteu pakait langsung jeung [[validityvaliditas (psychometricpsikométri)|validitas]]. ReliabilitasRéliabilitas nyaetanyaéta ukuran nu bisa dipercaya keur ngukur sacara angger, tapi teu perlu kana naon anu diukur. Conto, sanajan loba tes anu bisa diandelkeun, tapi teu sakabeh tes nembongkeun hasil nu hade keur ngagambarkeun hij pagawaean.

It was well-known to classical test theorists that measurement precision is not uniform across the scale of measurement. Tests tend to distinguish better for test-takers with moderate trait levels and worse among high- and low-scoring test-takers. [[Item response theory]] extends the concept of reliability from a single index to a function called the ''information function''. The IRT information function is the inverse of the conditional observed score standard error at any given test score. Higher levels of IRT information indicate higher precision and thus greater reliability.-->

==SeeBaca alsoogé==

* [[AccuracyHomogénitas]]

* [[HomogeneityHambalan ukuran]]

* [[Levels of measurementPrésisi]]

* [[PrecisionTéori réliabilitas]]

* [[ReliabilityMétode theoryilmiah]]

* [[Scientific methodStatistika]]

* [[StatisticsValiditas (statistika)]]

* [[Validity (statistics)Variasi]]

[[Category:StatisticsStatistika]]

[[Category:PsychometricsPsikométri]]

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[[Category:Psikologi Educational psychologyatikan]]