This study examines whether a diagnosis of mental impairment of a care
recipient influences the strain of family caregiving. Two competing h
ypotheses, derived from labeling theory, provide alternative views. On
e posits that a diagnosis reduces strain by linking problematic charac
teristics of care recipients' impairment to an illness. The competing
hypothesis suggests that a diagnosis increases strain by reifying the
existence of a progressive chronic condition. LISREL analysis with dat
a from a sample of 576 primary caregivers shows that the diagnosis has
an important effect, but this influence varies for different types of
strain. Relationship strain and restrictions in social activities are
increased for caregivers of diagnosed care recipients. Functional imp
airment also causes a greater restriction of social activities when a
diagnosis has been made. A different pattern emerges for depression, w
ith caregivers in the diagnosed group being less depressed and less ne
gatively affected by care recipients' impaired ability for social inte
raction, but more depressed by disruptive behavior and functional impa
irment.