Factor analysis, reliability and validity of a measurement model for the intent of alcohol consumption among ecuadorian teenagers

Abstract

<jats:p>Objective. Confirm the bifactorial structure, reliability and validity of the Modelo de Medición de Intención al consumo de Alcohol (MMICA), in a sample of Ecuadorian adolescents. Method. Instrumental study with factor analysis, reliability and validity (construct and criterion) of the MMICA among risky and not risky consumers. The sample was 480 students (52.3% men), between 12 to 19 years (M= 14.8, SD= 1.5), from three different educational centres (67.9% public) of Ambato and Pelileo cities, Ecuador. Results. The bifactorial structure is confirmed with a variance explained of 72.1%, the adjustment data are adequate with X2= 39.9; p&lt; .001; df= 26; X2/df=1.5; CFI= .98; TLI= .97; SRMR= .045; RMSEA=.048 [.011 - .077]. Reliability is high (ω=.90 for behavioural control and ω=, 84 for behavioural belief). This study confirms criterion validity between risky and not risky alcohol consumers. Conclusions. The MMICA is an adequate, reliable and valid test to assess intent of alcohol consumption among Ecuadorian adolescents. </jats:p>

Validation of The Purpose in Life Scale-Short Form in an Ecuadorian Sample: factor analysis, reliability and graded response model

“…The established cut-off points are that the χ 2 is not significant (p > .05), the CFI and TLI are greater than .9, and the SRMR and RMSEA are less than .08. Additionally, in the case of item saturation (λ), they are expected to be greater than .50 (Brown, 2015;Byrne, 2008;Moreta-Herrera et al, 2020;Mueller & Hancock, 2018;Wolf et al, 2013). Attached to this analysis, the ME by gender is studied with the AFC-MG with WLSMV estimation (see Table 2) to know the presence or not of invariance of the factorial model by segmenting the sample into groups from a referential variable (gender).…”

Características psicométricas del ECR-R (Experiences in Close Relationships-Revised) en población ecuatoriana

“…Por otro lado, las cargas factoriales encontradas en el AFC realizado en la presente investigación, permitieron apreciar que cada uno de los 27 ítems era significativo en la conformación de la versión ecuatoriana del ECR-R (Domínguez-Lara, 2018;Moreta-Herrera et al, 2020), pues los valores fluctuaban en un rango entre aceptable y satisfactorio. Además, el análisis de fiabilidad evidenció que la consistencia interna de la escala era adecuada.…”

“…Se estima que, tras un AFC, un modelo guarda un ajuste adecuado cuando el ꭓ 2 es no significativo (p > .05), el ꭓ 2 /gl es menor a 4, el CFI y TLI superior a .90 (de preferencia mayor a .95), y el SRMR y RMSEA menores a .08 (Brown, 2015;Byrne, 2008;Yang-Wallentin, Jöreskog, & Luo, 2010). También se analizaron las cargas factoriales (λ) de los ítems del mejor modelo de ajuste para conocer la consistencia de los ítems y el aporte a la explicación de la varianza; se espera que las cargas sean superiores a .4 (de preferencia mayores a .5) para corroborar mejor la consolidación del modelo (Domínguez-Lara, 2018; Moreta-Herrera, Mayorga-Lascano, Larzabal-Fernández, & Vaca-Quintana, 2020).…”

Factorial Validity, Reliability, Measurement Invariance and the Graded Response Model for the COVID-19 Anxiety Scale in a Sample of Ecuadorians

“…In order to adequately diagnose and employ corrective individual and group treatment, it is important to undertake exploratory research to identify the psychological attributes related to the COVID-19 pandemic. Likewise, research to develop, adapt and validate instruments that can measure these attributes is necessary ( Jonason et al, 2020 ; Li, 2016 ; Moreta-Herrera et al, 2020 ; Mueller & Hancock, 2018 ).…”