Browsing by Autor "Juan Ozaita"

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Perception of own centrality in social networks
(National Academy of Sciences, 2025) Jaromír Kovářík; Juan Ozaita; Ángel Sánchez; Pablo Brañas‐Garza
This study explores how individuals perceive their social networks, with a focus on their own positioning. Using experimental methods and network analysis, we show that people have a limited understanding of their social standing in terms of popularity (in-degree) and centrality. Few participants accurately estimate their popularity, and even fewer correctly identify their decile of centrality. A similar pattern emerges for their perceptions of the most popular and central individuals, but we find no correlation between the ability to assess one's own position and the ability to detect key network members. Popular participants correctly perceive themselves as more popular, although they tend to misjudge their popularity more than less popular peers. They are nonetheless more accurate in estimating their centrality. Perceived centrality is only weakly correlated with actual centrality, but central individuals misperceive both their popularity and centrality to a greater extent. We further show that these misperceptions have real-world implications. Conditional on network positioning, students who see themselves as less popular and less central-and those with more accurate self-perceptions-tend to achieve higher grades, whereas individuals recognized by others as popular and central perform significantly better academically. These findings challenge theoretical models that assume accurate self-awareness of network positions and highlight the need to reconsider the implications for key-player interventions in public health, education, and organizational contexts.
Triadic influence as a proxy for compatibility in social relationships
(European Organization for Nuclear Research, 2023) Miguel Ruíz-García; Juan Ozaita; María Pereda; Antonio Alfonso; Pablo Brañas‐Garza; José A. Cuesta; Anxo Sánchez Sánchez
This dataset contains valuable information that allows for the recreation of the paper "Triadic influence as a proxy for compatibility in social relationships" which was published in PNAS. The dataset comprises 13 high school networks that represent the diverse social relationships that exist between students within each school. To construct each of these networks, you can utilize the "Edges_i.csv" and "Nodes_i.csv" files, which are available for download in the files section. The edges files provide data on weighted edges, where the weight varies between -2, -1, +1, and +2. The sign indicates the nature of the friendship, while the number corresponds to its intensity. On the other hand, the node files contain information about the age level, group, sex, and psychological attributes such as CRT and prosociality.
Triadic influence as a proxy for compatibility in social relationships
(European Organization for Nuclear Research, 2023) Miguel Ruíz-García; Juan Ozaita; María Pereda; Antonio Alfonso; Pablo Brañas‐Garza; José A. Cuesta; Anxo Sánchez Sánchez
This dataset contains valuable information that allows for the recreation of the paper "Triadic influence as a proxy for compatibility in social relationships" which was published in PNAS. The dataset comprises 13 high school networks that represent the diverse social relationships that exist between students within each school. To construct each of these networks, you can utilize the "Edges_i.csv" and "Nodes_i.csv" files, which are available for download in the files section. The edges files provide data on weighted edges, where the weight varies between -2, -1, +1, and +2. The sign indicates the nature of the friendship, while the number corresponds to its intensity. On the other hand, the node files contain information about the age level, group, sex, and psychological attributes such as CRT and prosociality.