Scale Development
We are actively involved in developing, revising, and translating several psychometric scales.
We are actively involved in developing, revising, and translating several psychometric scales.
Studies in this project
Open for participants
Many Analysts Psychedelic Project (MAPP)
Psychedelic experiences are measured with a patchwork of questionnaires — the Mystical Experience Questionnaire, the Challenging Experience Questionnaire, the Ego Dissolution Inventory, the 11-Dimensional Altered States…
Open for participants
Towards a brief Altered States of Consciousness Rating Scale
This study aims to confirm the factor structure of the Altered States of Consciousness scale and to develop a brief alternative based on this structure.
Not recruiting
Development of the Altered States of Self-Consciousness Scale
This study aims to develop a new scale to assess changes in narrative and embodied self related to altered states of consciousness such as those induced by psychedelics and meditation.
Not recruiting
Dutch translation of the Psychological Insight Questionnaire and the Emotional Breakthrough Inventory
The Psychological Insight Scale (Peill et al., 2022) and the Emotional Breakthrough Inventory (Roseman et al., 2019) are psychometric scales that are commonly used in research investigating the effect of psychedelic…