The paper proposes a latent class version of Combination of Uniform and (shifted) Binomial random variables ( <Emphasis FontCategory="NonProportional">CUB ) models for ordinal data to account for unobserved heterogeneity. The extension, called  <Emphasis FontCategory="NonProportional">LC-CUB , is useful when the heterogeneity is originated by clusters of respondents not...</emphasis></emphasis>

The analysis of highly structured data requires models with unobserved components (random effects) able to adequately account for the patterns of variances and correlations. The specification of the unobserved components is a key and challenging task. In this paper, we first review the...

In family medicine contrasting evidence exists on the effectiveness of team practice compared with solo practice on chronic disease management. In Italy, several experiences of team practice have been introduced since the late 1990s but few studies detail their impact on the quality of care.