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The state of the art related to parameter correlation in two‐parameter models has been reviewed in this paper. The apparent contradictions between the different authors regarding the ability of D‐optimality to simultaneously reduce the correlation and the area of the confidence ellipse in two‐parameter models were analyzed. Two main approaches were found: (1) those who consider that the optimality...
This study tested an empirical model of the relationship between Personal Positive Youth Development (PPYD) and two contextual factors: Positive Parenting (PP), and Perception of the Climate and Functioning of the School (PcfS). The hypothesis tested was that a positive relationship with parents and a positive perception of the school will contribute to the prediction of PPYD. The sample was composed...
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