SOLITAIRE Adults T0 Dataset on Hikikomori, Basic Psychological Needs, and Parental Bonding

Anonymized baseline (T0) dataset from the SOLITAIRE project including psychological and clinical variables related to hikikomori symptom severity, basic psychological need satisfaction and frustration, and perceived parental bonding in Italian adults at high risk of hikikomori. The repository includes anonymized data, metadata, SPSS syntax, and documentation associated with the following publication: Pupi, V., Bressi, C., Brambilla, P., Rossetti, M. G., Perlini, C., Girelli, F., Buio, M. D., Zovetti, N., Fanizza, I., Trabacca, A., Guarnieri, F. C., Sassi, R., Bellani, M., & Delle Fave, A. (2026). Basic psychological needs and parental bonding in Italian adults at high risk of hikikomori (extreme social withdrawal): the distinctive association of Competence Frustration with symptom severity. Frontiers in Psychology, 16. https://doi.org/10.3389/fpsyg.2025.1738750 Measures included:- Hikikomori Questionnaire-25 (HQ-25)- Basic Psychological Need Satisfaction and Frustration Scale (BPNSFS)- Parental Bonding Instrument (PBI) This repository does not contain directly identifiable participant information. > Note: This package is associated with the broader clinical project called Solitaire. The main project DOI is 10.5281/zenodo.20526320.