The idea behind the factorization approach is to address the complexity of the problem by identifying variables, which determine the state of the environment and the specific actions which have an effect on them, under certain conditions.
Given the nature of the dependent variable, we perform a multivariate analysis for identifying variables for predicting HRQOL scores reported by the health survey participants.
To overcome the latter problem without significant compromise of the first issue, we created the following four composite scores from items defining the same concept by adding responses of identified variables giving equal weights to each item.
PCA is a mathematical technique for simplifying a large number of variables by identifying patterns of covariance among them.
So, first of all, the aim of a LCA is to reduce the complexity of the data by identifying clusters of observed variables, the latent classes, and then, to reduce the heterogeneity of the population of patients by identifying sub populations based on the probability of each of the subjects to belong to a certain latent class.
Nonetheless, certain interesting results of the PCA can be emphasized, notably by identifying the groups of variables in opposition to each other.
The objective of this study is to explore the process of adoption communication openness in Portuguese adoptive families by identifying the impact of variables related to the adoption process, the adoptive parenting and the adoptee.
After, analyzing the physical validity of some crack growth models, a general methodology to build models is presented starting by identifying the set of variables involved in the crack growth problem.
However, they can help to clarify definitions of different processes with greater precision than informal verbal explanations, they can lend plausibility to hypotheses by demonstrating that assumed consequences logically follow from premises, and they can guide future empirical work by identifying the kinds of variables that might be important and that future empirical work should focus on.
