The number of cases or clients assigned to a single professional, like a lawyer, social worker, or teacher.
From 'case' + 'load' (burden or quantity), formed in the 20th century as professions needed a term for measuring workload volume.
Research shows that when social workers have caseloads above 20-25 clients, outcomes get worse—yet many are assigned 50+, which is why burnout is epidemic in helping professions.
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