Adaptation and validation into Spanish of the Multidimensional Psychological Flexibility Inventory (MPFI): evidence of internal validity and factorial Invariance.

SIMKIN, H.; FREIBERG HOFFMANN, A.; CASELLI, G.; PROZZILLO, P.; ROGGE, R. D.; WILSON, K.G.

AJAYU

Departamento de Psicología de la Universidad Católica Boliviana

Lugar: La Paz; Año: 2023 vol. 21 p. 111 - 130

2077-3161

Thisstudy aims to assess the psychometric properties and internal consistency ofthe Spanish version of the Multidimensional Psychological Flexibility Inventory(MPFI) within a general population of Argentina. A total of 866 participantswith ages between 18 and 84 years (M = 47.33; SD = 17.26) and of both sexes(Men = 40.9%; Women = 59.1%) participated in the main study. A 2-factor higherorder model resulted in acceptable fit indices (NFI = .97; NNFI = .98; CFI =.98; IFI = .98; RMSEA .41). The Spanish MPFI also demonstrated both weak(metric) and strong (scalar) factor invariance when compared to the EnglishMPFI given to a United States sample (N = 1630; 18 to 85 years old, M = 50.1,SD = 18.7; 77.0% identifying as women; 86.6% White). Results indicated anacceptable internal consistency in all factors (ω >.74).  The adaptation into Spanish of the MPFIpresents 60 and 24 items similar to those proposed by the original authors andadequate psychometric properties in the study sample. Regarding itslimitations, it should be noted that results only report the factor structure-factor validity- and the internal consistency -reliability- of the MPFI, whichis only a first exploratory approach in adapting the scale to the localcontext. For this reason, future research should continue to explore thepsychometric properties of the MPFI in Argentina.