IQ 90 Credit Diploma in Health and Social Care Overview: The 90 Credit IQ Level 3 Diploma in Principles of Health and Social Care is a knowledge only qualification aimed at the following: The qualification content is applicable to a wide variety of health and social care job roles, including but not limited to; residential settings, primary care environments, day services, personal assistance and domiciliary services. It provides learners with formal recognition of their health and social care knowledge.