We explored preschool’s children’s understanding of the correspondence of 3-D objects and 2-D faces in a novel task. In the “footprints” task children were shown a geometric solid, such as a pyramid or a prism, and asked to select which shape the solid would make if it were dipped in ink and stamped on a piece of paper. Through a latent class analysis of children’s errors we found children diff...

Previous research by Tucker et al. (2007), working with the Consumer Expenditure Interview Survey (CE), explores the efficacy of measurement error indicators such as: interview length, extent and type of records used, the monthly patterns of reporting, and income question missing in a latent construct. Later research by Tucker, Meekins, and Biemer (2008) extend this latent class model to includ...

BACKGROUND Risk prediction of atrial fibrillation (AF) is of importance to improve the early diagnosis and treatment of AF. Latent class analysis takes into account the possible existence of classes of individuals each with shared risk factors, and maybe a better method of incorporating the phenotypic heterogeneity underlying AF. METHODS AND FINDINGS Two prospective community-based cohort stu...

Although seafood is considered to be a healthy food choice, the recommended consumption level of two servings per week is still not reached in most countries. Previous research has identified potential barriers of seafood consumption, including purchase and consumption convenience, but it is still unclear to what degree consumer choice is affected by convenience relative to known choice drivers...

The data base availability and the possibility to perform survey permit to the researcher to explore new segmentation model trying to involve methodological statistics and explanatory variables. Recent literature focused on values and lifestyles as predictors of consumer purchase (Kamakura, Mazzon, 1991). We purpose to build a survey based on questionnaire to analyze the influences of explanato...

Musical chords, harmonies or melodies in Just Intonation have note frequencies which are described by a base frequency multiplied by rational numbers. For any local section, these notes can be converted to some base frequency multiplied by whole positive numbers. The structure of the chord can be analysed mathematically by finding functions which are unchanged upon chord transposition. These fu...

Latent representation learned from multi-layered neural networks via hierarchical feature abstraction enables recent success of deep learning. Under the deep learning framework, generalization performance highly depends on the learned latent representation which is obtained from an appropriate training scenario with a taskspecific objective on a designed network model. In this work, we propose ...

Explaining group-level outcomes from individual-level predictors requires aggregating the individual-level scores to the group level and correcting the group-level estimates for measurement errors in the aggregated scores. However, for discrete variables it is not clear how to perform the aggregation and correction. It is shown how stepwise latent class analysis can be used to do this. First, a...