Diseños de observación longitudinales: cambio intra-individual y diferencias inter-individuales observados durante la infancia

Abstract

<p>The study of change in repeated measures studies or longitudinal studies (cross-sectional and/or cross-sequential) is of considerable interest in the field of developmental psychology. Qualitative and quantitative measures of interindividual and intraindividual variability can be used to capture changes in cognitive development.</p><p>In the present study, through an empirical analysis of infant cognitive development, we investigate whether or not longitudinal (cross-sectional/cross-sequential) research designs can be used interchangeably with univariate or multivariate data analysis techniques. Methodologically, longitudinal data can be processed by univariate or multivariate analysis. However, the results and their interpretation may be different, even when the necessary statistical requirements are performed. Current statistical programs incorporate techniques to test for the presence of significant differences in data, regardless of whether these are evaluated by univariate or multivariate analysis.</p>The results of this study, conducted in infants studied at three time points (18, 21 and 24 months), show that both intraindividual and interindividual variability can be detected by repeated measures analyses.

Diachronic analysis application for the detection of soccer performance standards: a case study

“…This diachronic study implies making a successive collection of qualitative data from the same participants along several sessions in the 2012 UEFA Euro Cup, with the objective of managing and analyzing data using quantitative techniques for categorical data (Bakeman & Quera, 2011;Magnusson, 2020;Quera, 2018;Sackett, 1980). To apply this diachronic analysis, we should distinguish between intersessional following (Escolano-Pérez, & Blanco-Villaseñor, 2015;Portell, Anguera, Chacón-Moscoso, et al, 2015), when two or more sessions are studied during a period of time, and intrasessional following (Portell, Anguera, Chacón-Moscoso, et al, 2015), which allows to collect the data from the beginning to the end of each session. The requirement that must be met to perform each of the diachronic analysis, that are described in Anguera, Portell, Hernández-Mendo, Sánchez-Algarra, and Jonsson (in press), is that we have an intrasessional following record, which implies the continuous record of each observational session.…”