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This self-report measure assesses the extent to which an individual perceives their core psychological needs as being met in everyday contexts. The Basic Psychological Need Satisfaction Scale (BPNSS) is commonly used to characterize need fulfillment relevant to well-being and functioning.
The questionnaire includes 21 items and typically requires about 4 minutes to complete. Items reflect key domains described in self-determination theory—autonomy, competence, and relatedness—and can be used to inform case formulation, monitor change over time, or support research examining associations between perceived need satisfaction and adjustment.
Interpretation is based on the respondent’s pattern of endorsements across domains, with higher scores generally indicating greater perceived satisfaction of the respective needs. Results from the Basic Psychological Need Satisfaction Scale (BPNSS) should be considered alongside clinical interview data and other relevant measures.