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The publication can be exported in the following formats: APA (American Psychological Association) reference format, IEEE (Institute of Electrical and Electronics Engineers) reference format, BibTeX and RIS.

Export Reference (APA) 
Calapez, T. & Ramos, M. (2009). Do different presentations of Likert-type items lead to differences in structure?: A field study using linear and nonlinear PCA. IMPS 2009, International Meeting of the Psychometric Society.
Export Reference (IEEE) 
M. T. Calapez and M. M. Ramos,  "Do different presentations of Likert-type items lead to differences in structure?: A field study using linear and nonlinear PCA", in IMPS 2009, Int. Meeting of the Psychometric Society, Cambridge, 2009
Export BibTeX 
@misc{calapez2009_1765612768837,
	author = "Calapez, T. and Ramos, M.",
	title = "Do different presentations of Likert-type items lead to differences in structure?: A field study using linear and nonlinear PCA",
	year = "2009",
	howpublished = "Digital",
	url = ""
}
Export RIS 
TY  - CPAPER
TI  - Do different presentations of Likert-type items lead to differences in structure?: A field study using linear and nonlinear PCA
T2  - IMPS 2009, International Meeting of the Psychometric Society
AU  - Calapez, T.
AU  - Ramos, M.
PY  - 2009
CY  - Cambridge
ER  -