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Measurement quality in indicators of compositions : a compositional multitrait-multimethod approach
ID
Coenders, Germà
(
Author
),
ID
Hlebec, Valentina
(
Author
),
ID
Kogovšek, Tina
(
Author
)
URL - Presentation file, Visit
https://ojs.ub.uni-konstanz.de/srm/article/download/4678/4519
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Abstract
Compositional data, also called multiplicative ipsative data, are common in survey research instruments in areas such as time use, budget expenditure and social networks. Compositional data are usually expressed as proportions of a total, whose sum can only be 1. Owing to their constrained nature, statistical analysis in general, and estimation of measurement quality with a confirmatory factor analysis model for multitrait-multimethod (MTMM) designs in particular are challenging tasks. Compositional data are highly non-normal,as they range within the 0-1 interval. One component can only increase if some other(s) decrease, which results in spurious negative correlations among components which cannot be accounted for by the MTMM model parameters. In this article we show how researchers can use the correlated uniqueness model for MTMM designs in order to evaluate measurement quality of compositional indicators. We suggest using the additive log ratio transformation of the data, discuss several approaches to deal with zero components and explain how the interpretation of MTMM designs diers from the application to standard unconstrained data. We show an illustration of the method on data of social network composition expressed in percentages of partner, family, friends and other members in which we conclude that the face-to-face collection mode is generally superior to the telephone mode, although primacy eects are higher in the face-to-face mode. Compositions of strong ties (such as partner) are measured with higher quality than those of weaker ties (such as other network members).
Language:
English
Work type:
Not categorized
Typology:
1.01 - Original Scientific Article
Organization:
FDV - Faculty of Social Sciences
Year:
2011
Number of pages:
Str. 63-74
Numbering:
Vol. 5, no. 2
PID:
20.500.12556/RUL-45252
UDC:
303:316.472.4
ISSN on article:
1864-3361
COBISS.SI-ID:
30531165
Publication date in RUL:
10.07.2015
Views:
1174
Downloads:
177
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Record is a part of a journal
Title:
Survey research methods
Shortened title:
Surv. res. methods
Publisher:
Survey Research Methods
ISSN:
1864-3361
COBISS.SI-ID:
30530909
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