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Liberabit
versión impresa ISSN 1729-4827
Resumen
OLIVAS-UGARTE, Lincol Orlando y CIPRIANI-DELGADO, Christabel Salome. Revised Shyness Scale (ETR-13): Psychometric Properties in Peruvian Adolescents. liber. [online]. 2022, vol.28, n.1, e506. Epub 14-Feb-2022. ISSN 1729-4827. http://dx.doi.org/10.24265/liberabit.2022.v28n1.03.
Background:
shyness can interfere with the normal development of social relationships during adolescence, and negatively affect self-concept during schooling; therefore, it is necessary to have valid, reliable, equitable measuring instruments and normative conditions for their appropriate use in the Peruvian context.
Objective:
this instrumental research aimed at analyzing the psychometric properties of the Revised Shyness Scale (ETR-13) and generating normative data for its application in adolescents from Lima Metropolitan Area.
Method:
five hundred (500) adolescents aged between 12 and 17 (M = 14.65, SD = 1.60) participated in the study, out of which 205 (41%) were males and 295 (59%) females.
Results:
the results of the confirmatory factor analysis showed acceptable values for a second-order model: χ2/df = 1.41, CFI = .996, TLI = .995, RMSEA = .029 and SRMR = .035. Convergent validity was verified with the Social Anxiety Scale for Adolescents (SAS-A) (r = .674; r2 = .25) and divergent validity with the Academic Self-Concept Scale (EAA) (r = -.436; r2 = .19). Consequently, the reliability was obtained by the ordinal omega coefficient for the general scale (ω = .90) and its two factors (ω = .89 and ω = .77).
Conclusions:
a factorial invariance analysis made it possible to demonstrate the equivalence of the instrument by sex and age (ΔCFI < .01, ΔRMSEA < .01). Therefore, it is concluded that ETR-13 has adequate psychometric properties to evaluate the shyness variable in the target population.
Palabras clave : ETR-13 scale; adolescence; validity; reliability; equity..