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| Description
| - The aim of the paper was to explore how principles of estimating validity and reliability of research instruments, as described in respected methodology textbooks, are satisfied. The initial parts of the paper delineate the theoretical framework and describe the concepts of validity and reliability. The following sections of the paper explain the process of analysis and its findings. The Journal of Educational Research was chosen as the research focus. A sample of 56 randomly selected articles from it has been inspected. The analysis revealed that a large majority (91 %) of research instruments used in these articles was scales and tests, the rest were questionnaires, observation schemes and interviews. Surprisingly, validity was calculated only with 26 of instruments; the rest of instruments were standardized tests or they were face-validated. As far as scales are concerned, construct validity was documented by means of factor analyses. Content validity and face validity were used in tests, questionnaires and interviews. We consider the infrequent use of combination of two sources of validity (e.g., construct and concurrent or discriminant) to be a weak element in the validation processes in the sample of studies. Reliability was documented with 80 % of research instruments. The most frequent method of calculation was Cronbach’s alpha. Inter-rater reliability was used in observations and tests; test-retest reliability was used to control the stability of the pretest-posttest measuring instrument. The size of reliability coefiicients in most of studies exceeded 0.80. Throughout the analysis it was corroborated that when judging validity and reliability one has to critically consider the specific conditions of each research study before expressing an evaluation statement. (en)
- Článok odpovedá na otázku, ako sa uplatňujú v praxi princípy zisťovania validity a reliability, ktoré udávajú renomované učebnice metodológie. Prvé dve časti príspevku načrtávajú teoretický rámec a opisujú koncept validity a reliability. Nasledujúce časti vysvetľujú proces analýzy a uvádzajú jej výsledky. Z časopisu The Journal of Educational Research bolo náhodným spôsobom vybratých 56 štúdií. Veľká väčšina (91 %) výskumných nástrojov v nich boli posudzovacie škály a testy, zvyšok boli dotazníky, pozorovacie schémy a interview. Na prekvapenie bola validita zdokumentovaná len u 26 % nástrojov, zvyšok nástrojov boli štandardizované testy, alebo sa autori spoliehali na zrejmú (face) validitu. U posudzovacích škál sa použila konštruktová validita zistená pomocou faktorovej analýzy. Obsahová validita a face validita sa použili pri testoch, dotazníkoch a interview. Kombinované zdroje validity (napr. konštruktová spolu so súbežnou alebo diskriminačnou) sa použili veľmi málo, čo považujeme za nedostatok vo validizačnom procese. Reliabilita bola uvedená pri 80 % nástrojoch. Najfrekventovanejší spôsob bola Cronbachova alfa u posudzovacích škál. Zhoda medzi posudzovateľmi sa použila pri pozorovaní a testoch. Test-retest sa použil pri overovaní, či je merací nástroj na pretest-posttest stabilný v priebehu času. Koeficienty reliability väčšinou presahovali 0,80. Pri analýze štúdií sa potvrdilo, že pri posudzovaní adekvátnosti validizácie a reliabilizácie je potrebné silne prihliadať k špecifickým podmienkam konkrétneho výskumu.
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| Title
| - Validita a reliabilita výskumných nástrojov: princípy a reálna prax
- Validity and reliability of research instruments: Principles Validity and reliability of research instruments: Principles and actual practice (en)
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| skos:prefLabel
| - Validita a reliabilita výskumných nástrojov: princípy a reálna prax
- Validity and reliability of research instruments: Principles Validity and reliability of research instruments: Principles and actual practice (en)
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| skos:notation
| - RIV/70883521:28150/13:43870587!RIV14-MSM-28150___
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| http://linked.open...avai/predkladatel
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/70883521:28150/13:43870587
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - metastudy, validity, reliability, research instrument, research study (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
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| issn
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| number of pages
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| http://bibframe.org/vocab/doi
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| http://localhost/t...ganizacniJednotka
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