Questionnaires (2) Belgian students (2) Older people (2) Attitudes (2) Influence (2) participation sociale (1) analyse (1) éducation (1) Belgique (1) Education (1) Context (1) Ageism (1) Work (1) Trails (1) Students (1) Social participation (1) Medical personnel (1) Manufacturers' agents (1) Healing (1) Evaluation (1) Education (1) Commission merchants (1) Belgians (1) Tax assessment (1) Psychology students (1) Valuation (1) Analysis (1) Science (1) Rating of (1) Health (1)