Fear Intensity Scale for Mexican Infants (short version). Instrument validation

Authors

DOI:

https://doi.org/10.58299/cisa.v8i1.124

Keywords:

fear; infants; reliability; validation

Abstract

Fear is a basic, negative, and adaptive emotion that is activated in the face of a real or imagined threat and is necessary for people to adapt to new contexts. This study aimed to validate the short version of the Fear Intensity Scale in Mexican infants. A quantitative, quasi-experimental, correlational, and cross-sectional study was conducted. A non-probabilistic sample of 615 Mexican infants (50.6% girls and 49.4% boys) aged 6 to 12 years (M=10.13; SD=1.22) was used. The following instruments were used: the Fear Intensity Scale in Children, the CERQ-k, and the Prosocial Behavior Scale, all validated in the Mexican population. Exploratory Factor Analysis (EFA), Confirmatory Factor Analysis (CFA), reliability, and correlations between the scales were performed. Results: EFA yielded eight factors, KMO=.867, α=.896, ω=.895; In the AFC: CFI=.959; TLI=.949; SMRM=.042, RMSEA=.04; high correlations between the scale factors. A valid, reliable, and short instrument was obtained that measures fear in Mexican infants.

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Published

2025-06-30

How to Cite

Reyes Pérez, V., & Alcazár-Olán, R. J. (2025). Fear Intensity Scale for Mexican Infants (short version). Instrument validation. CISA, 8(1). https://doi.org/10.58299/cisa.v8i1.124