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The Basic Psychological Needs Satisfaction and Frustration Scale: Initial Validity Evidence in Aphasia.

Kristen Nunn¹, Tami Brancamp², William S Evans³

¹VA Pittsburgh Healthcare System, PA.

American Journal of Speech-Language Pathology

|June 28, 2025

Summary

Clinicians can now assess motivation in aphasia rehabilitation using the Basic Psychological Needs Satisfaction and Frustration Scale (BPNS/F). This tool helps identify factors affecting motivation to improve treatment outcomes.

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Area of Science:

Speech and Language Pathology
Psychology
Rehabilitation Science

Background:

Motivation is crucial for aphasia rehabilitation but lacks evidence-based assessment tools.
Self-determination theory posits that satisfying basic psychological needs (autonomy, competence, relatedness) enhances motivation.

Purpose of the Study:

To evaluate the validity of the Basic Psychological Needs Satisfaction and Frustration Scale (BPNS/F) for people with aphasia.
To support the assessment and management of motivation in aphasia rehabilitation.

Main Methods:

Seventy-seven individuals with aphasia completed the BPNS/F, which measures satisfaction and frustration of autonomy, competence, and relatedness.
Validity was assessed via internal structure (confirmatory factor analysis), internal consistency reliability, and correlations with related constructs.

Main Results:

The BPNS/F's internal structure aligned with previous research in non-aphasic adults.
Reliability was adequate for group analyses but not individual assessments.
Autonomy and competence satisfaction were linked to lower depression levels; communication quality was related to BPNS/F factors.

Conclusions:

The BPNS/F shows potential for assessing motivation in aphasia rehabilitation.
Further research should adapt the BPNS/F for individuals with aphasia to integrate motivational theory into clinical practice and research.