During Emerging Adulthood (EA) many and rapid changes in multiple domains occur, making this period a key turning-point in the life span development. These developmental changes impact, in a unique way, on subsequent positive and negative trajectories (Obradović, Burt & Masten, 2006). For this reason, the identification of protective factors and variables promoting resilience are of great relevance during EA. The availability of reliable measure of resilience in EA is lower if compared with other stage of life (Madewell & Ponce-Garcia, 2016). One of the most widely used measure is the Connor-Davidson Resilience Scale-10 (CD-RISC-10). The main aim of this study is to investigate the psychometric properties of the Italian version of the CD-RISC-10 by applying Item Response Theory (IRT). To our knowledge, no study thus far has examined the CD-RISC employing this approach, and the psychometric proprieties of this scale have not been tested yet in an Italian EA sample. Specifically, we investigated: (1) the contribution of each item in measuring resilience; (2) the scale reliability in measuring the different levels of the trait; whether items show gender Differential Item Functioning (DIF). The CD-RISC-10 was administered to a sample of 821 Italian emerging adults (59.3% girls; Mean age = 22.52 years, SD = 2.68; range: 18-29). A preliminary CFA confirmed the unidimensional structure of the scale (RMSEA=0.04, 90% CI [0.03, 0.05]; SRMR=0.04 CFI = 0.92; TLI = 0.98). At the item level, IRT analyses provided evidence that, with few exceptions, the CD-RISC-10 items cover the spectrum of the θ trait (threshold b values were quite evenly spaced from θ = -3.00 to θ = 2.50) and they discriminate well among respondents with different levels of resilience (a values ≥ 0.85). Additionally, the Test information Function (TIF) showed that the whole scale has an adequate reliability. Finally, from gender DIF analyses the scale appeared to be only partially invariant.
Measuring Resilience in Emerging Adulthood: an Item Response Theory (IRT) analysis of the Italian version of the Connor-Davidson Resilience Scale 10 (CD-RISC-10) / Dellagiulia, A., Cantiero, S., Lionetti, F., Chiesi, F.. - ELETTRONICO. - (2018), pp. ---. (Intervento presentato al convegno European Association for Research on Adolescence - EARA 16th Biennial Conference).
Measuring Resilience in Emerging Adulthood: an Item Response Theory (IRT) analysis of the Italian version of the Connor-Davidson Resilience Scale 10 (CD-RISC-10)
Chiesi F.
2018
Abstract
During Emerging Adulthood (EA) many and rapid changes in multiple domains occur, making this period a key turning-point in the life span development. These developmental changes impact, in a unique way, on subsequent positive and negative trajectories (Obradović, Burt & Masten, 2006). For this reason, the identification of protective factors and variables promoting resilience are of great relevance during EA. The availability of reliable measure of resilience in EA is lower if compared with other stage of life (Madewell & Ponce-Garcia, 2016). One of the most widely used measure is the Connor-Davidson Resilience Scale-10 (CD-RISC-10). The main aim of this study is to investigate the psychometric properties of the Italian version of the CD-RISC-10 by applying Item Response Theory (IRT). To our knowledge, no study thus far has examined the CD-RISC employing this approach, and the psychometric proprieties of this scale have not been tested yet in an Italian EA sample. Specifically, we investigated: (1) the contribution of each item in measuring resilience; (2) the scale reliability in measuring the different levels of the trait; whether items show gender Differential Item Functioning (DIF). The CD-RISC-10 was administered to a sample of 821 Italian emerging adults (59.3% girls; Mean age = 22.52 years, SD = 2.68; range: 18-29). A preliminary CFA confirmed the unidimensional structure of the scale (RMSEA=0.04, 90% CI [0.03, 0.05]; SRMR=0.04 CFI = 0.92; TLI = 0.98). At the item level, IRT analyses provided evidence that, with few exceptions, the CD-RISC-10 items cover the spectrum of the θ trait (threshold b values were quite evenly spaced from θ = -3.00 to θ = 2.50) and they discriminate well among respondents with different levels of resilience (a values ≥ 0.85). Additionally, the Test information Function (TIF) showed that the whole scale has an adequate reliability. Finally, from gender DIF analyses the scale appeared to be only partially invariant.
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