Search results for "Variable"

Polarization is first and foremost a categorical phenomenon: a comment on Kiers

2002

I-states-as-objects-analysis (ISOA): Extensions of an approach to studying short-term developmental processes by analyzing typical patterns

2012

I-states-as-objects-analysis (ISOA) is a person-oriented methodology for studying short-term developmental stability and change in patterns of variable values. ISOA is based on longitudinal data with the same set of variables measured at all measurement occasions. A key concept is the i-state, defined as a person’s pattern of variable values at a specific time point. All i-states are first subjected to a classification analysis that results in a time-invariant classification characterized by a number of typical i-states. Each person is then characterized at each time point by the typical i-state he/she belongs to. Then the person’s sequences of typical i-states are analyzed with regard to …

Cultural Background and Second Language Acquisition

1988

Abstract Knubb‐Manninen, G. 1988. Cultural Background and Second Language Acquisition. Scandinavian Journal of Educational Research 32, 93‐100. The article examines – on the basis of a research study carried out in Swedish‐speaking schools in Finland – the significance that cultural conditions, such as gender and social background, have for second language learning. A model with gender and social background serving as the exogenous factors, school learning capacity and language use as the intervening variables, and proficiency in Finnish (second language) as a dependent variable was tested by means of the Lisrel method. The findings indicate that social background influences the learning of…

¿El sexismo y la autoestima sexual guardan relación? Análisis de las diferencias de género

2021

Las creencias sexistas se originan ante la percepción de diferencias entre hombres y mujeres respecto a características biológicas y sociales. Se trata de un constructo bidimensional compuesto por el sexismo hostil, que implica actitudes abiertamente negativas hacia las mujeres, y el sexismo benévolo, que se caracteriza por un tono afectivo positivo que idealiza a las mujeres al tiempo que enfatiza su debilidad. Ambos tipos de sexismo son perjudiciales y contribuyen a mantener las desigualdades sociales, por lo que es necesario conocer aquellas variables que pueden estar relacionadas con este tipo de actitudes. En este sentido, la autoestima sexual parece actuar como una variable predictora…

Aportaciones de la teoría de la autodeterminación a la predicción de la satisfacción escolar en estudiantes universitarios

2019

La literatura especializada ofrece evidencias de que en todo el mundo las tasas de deserción universitaria son elevadas, generando inconvenientes para los propios estudiantes, para la institución a la que pertenecen y para la sociedad en general. Los determinantes del abandono de los estudios son diversos, considerando uno de los más importantes la satisfacción de los estudiantes con su entorno educativo. La satisfacción académica de los estudiantes depende en gran medida del clima motivacional del aula y de la satisfacción de las necesidades psicológicas básicas, fundamento de la teoría de la autodeterminación. En el marco teórico de la motivación autodeterminada y de la psicología positiv…

Coping with competition: neuroendocrine responses and cognitive variables.

2008

Confronting another individual or group motivated by the same goal is a very frequent situation in human communities that occurs in many other species. Competitive interactions emerge as critical situations that shed light on the effects and consequences of social stress on health. But more important than the situation itself is the way it is interpreted by the subject. This "appraisal" involves cognitive processes that contribute to explaining the neuroendocrine response to these interactions, helping to understanding the vulnerability or resistance to their effects. In this review, we defend the need to study human competition within the social stress framework, while maintaining an evolu…

Modeling joint and marginal distributions in the analysis of categorical panel data

2001

This article presents a unifying approach to the analysis of repeated univariate categorical (ordered) responses based on the application of the generalized log-linear modeling framework proposed by Lang and Agresti. It is shown that three important research questions in longitudinal studies can be addressed simultaneously. These questions are the following: What is the overall dependence structure of the repeated responses? What is the structure of the change between consecutive time points? and What is the structure of the change in the marginal distributions? Each of these questions involves specifying log-linear models for different marginal distributions of the multiway cross classifi…

Interindividual Differences in Treatment Effects based on Structural Equation Models with Latent Variables: An EffectLiteR Tutorial

2019

The investigation of interindividual differences in the effects of a treatment is challenging, because many constructs-of-interest in psychological research such as depression or anxiety are latent variables and modeling heterogeneity in treatment effects requires interactions and potentially nonlinear relationships. In this paper, we present a tutorial of the EffectLiteR approach (Mayer, Dietzfelbinger, Rosseel, & Steyer, 2016) that allows for estimating individual treatment effects based on latent variable models. We describe step by step how to apply the approach using the EffectLiteR software package with data from the multicenter randomized controlled trial of the Social Phobia…

Applying Cathegorical Metrics on Fuzzy Systems

2007

This work analyzes the categorical metrics usage on a very specific subset of Intelligent Systems: Fuzzy Systems. Several characteristics for such systems must be carefully evaluated when metrics and indicators are defined, in order to consider the fuzzy essence as part of the evaluation result. A set of metrics and indicators are defined and applied to the classical inverted pendulum problem. The paper does not intend to provide an exhaustive analysis of the quality evaluation on soft computing problem. It just presents a way to start the study of quality measure in that area.

Board Gender Diversity and Firm Performance: Evidence from Supply-Side Shocks in China

2019

This paper identifies a positive causal effect of board gender diversity on firm performance by utilizing unique historical events in China. Specifically, the Famine resulted in an evident gender gap in the supply of qualified directors of certain cohorts. Since the shocks differ in both gender and cohorts, we construct a novel "Diff-in-Diff'" instrumental variable and a Bartik instrument for board gender representation. We find that a 10% increase in board female representation can lead to a 2.38% increase in return on assets (ROA). Moreover, our results support the critical mass theory and indicate that female directors are beneficial by lowering risk levels and improving solvency.