Unobserved heterogeneity - Interpretation
Posted: Wed Feb 28, 2024 3:25 pm
Dear all,
Could you please assist me in understanding if my conclusion regarding the FIMIX-PLS analysis is accurate? I couldn't find an explanation for when the results indicate two segments and the second segment solution lacks a minimum sample. Can I conclude that the model does not exhibit unobserved heterogeneity at critical levels?
See the analysis and conclusion.
"To identify unobserved heterogeneity, we employed the FIMIX-PLS procedure (Hair, et al., 2016). A power analysis conducted in g*power software, assuming an effect size of 0.15 and a power level of 80%, indicated a minimum sample size requirement of 74, allowing for the extraction of up to three segments. In our analysis, AIC3 suggested a two-segment solution, while CAIC pointed to a one-segment solution. AIC4 and Bayesian Information Criteria (BIC) both indicated a two-segment solution, which appeared densely clustered according to the EN criterion (0.801). Additionally, AIC suggested a solution fewer than three, and the Minimum Description Length with a factor of 5 (MDL5) indicated a solution greater than 1. However, despite the good fit of the two-segment solution, it did not meet the sample size requirement (Segment 1 = 80.3%, 233 cases; Segment 2 = 19.7%, 57 cases). Therefore, considering the discrepancy between AIC3 and CAIC and the insufficient sample size for valid analysis with the two-segment solution, we concluded that unobserved heterogeneity is not at a critical level."
Thank you in advance,
Murilo
Could you please assist me in understanding if my conclusion regarding the FIMIX-PLS analysis is accurate? I couldn't find an explanation for when the results indicate two segments and the second segment solution lacks a minimum sample. Can I conclude that the model does not exhibit unobserved heterogeneity at critical levels?
See the analysis and conclusion.
"To identify unobserved heterogeneity, we employed the FIMIX-PLS procedure (Hair, et al., 2016). A power analysis conducted in g*power software, assuming an effect size of 0.15 and a power level of 80%, indicated a minimum sample size requirement of 74, allowing for the extraction of up to three segments. In our analysis, AIC3 suggested a two-segment solution, while CAIC pointed to a one-segment solution. AIC4 and Bayesian Information Criteria (BIC) both indicated a two-segment solution, which appeared densely clustered according to the EN criterion (0.801). Additionally, AIC suggested a solution fewer than three, and the Minimum Description Length with a factor of 5 (MDL5) indicated a solution greater than 1. However, despite the good fit of the two-segment solution, it did not meet the sample size requirement (Segment 1 = 80.3%, 233 cases; Segment 2 = 19.7%, 57 cases). Therefore, considering the discrepancy between AIC3 and CAIC and the insufficient sample size for valid analysis with the two-segment solution, we concluded that unobserved heterogeneity is not at a critical level."
Thank you in advance,
Murilo