2019
DOI: 10.32614/rj-2019-040
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unival: An FA-based R Package For Assessing Essential Unidimensionality Using External Validity Information

Abstract: The unival package is designed to help researchers decide between unidimensional and correlatedfactors solutions in the factor analysis of psychometric measures. The novelty of the approach is its use of external information, in which multiple factor scores and general factor scores are related to relevant external variables or criteria. The unival package's implementation comes from a series of procedures put forward by Ferrando and Lorenzo-Seva (2019) and new methodological developments proposed in this arti… Show more

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Cited by 2 publications
(1 citation statement)
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“…Because there is an apparent weakness in the methodology for examining the psychometric performance of items in epidemiological and public health research ( Olsen, 1998 ; Hagquist, 2019 ), and the SNA can potentially be in these research areas, the present study introduced the study of the quality of response options. Within this framework of methodological rigorousness, it was taken into account that external sources of information (i.e., constructs or external criteria) are drawing attention to give better and more supported conclusions about construct validity (e.g., see Taras and Kline, 2010 ; Ferrando et al, 2019 ; Ferrando and Lorenzo-Seva, 2019 ), so the item analysis included the analysis of association validity with external criterion. This has connections with construct validity at the level of specific items ( Taras and Kline, 2010 ), with content validity ( Koller et al, 2017 ), or with the emergence of differential relationships with external variables ( Ferrando and Lorenzo-Seva, 2019 ).…”
Section: Introductionmentioning
confidence: 99%
“…Because there is an apparent weakness in the methodology for examining the psychometric performance of items in epidemiological and public health research ( Olsen, 1998 ; Hagquist, 2019 ), and the SNA can potentially be in these research areas, the present study introduced the study of the quality of response options. Within this framework of methodological rigorousness, it was taken into account that external sources of information (i.e., constructs or external criteria) are drawing attention to give better and more supported conclusions about construct validity (e.g., see Taras and Kline, 2010 ; Ferrando et al, 2019 ; Ferrando and Lorenzo-Seva, 2019 ), so the item analysis included the analysis of association validity with external criterion. This has connections with construct validity at the level of specific items ( Taras and Kline, 2010 ), with content validity ( Koller et al, 2017 ), or with the emergence of differential relationships with external variables ( Ferrando and Lorenzo-Seva, 2019 ).…”
Section: Introductionmentioning
confidence: 99%