The idea that psychiatric diagnoses are not mere descriptors of a symptomatology but create incrementally negative effects in patients has received considerable support in the literature. The flipside to this effect, that calling someone by a psychiatric diagnosis also has an effect on how this person is perceived by others, however, has been less well documented and remains disputed. An experimental study was conducted with a large sample (N = 2265) to ensure statistical power to detect even small effects of such adding a psychiatric diagnosis to a description of symptoms or not. Dependent variables were chosen in an exploratory manner and tests were corrected for alpha inflation. Results show that calling the identical symptomatology schizophrenia (vs not labeling it) led to greater perceptions of aggressiveness, less trustworthiness, more anxiety toward this person, and stronger assumptions this person feels aggression-related emotions. Although stigmatizing attitudes were generally lower for persons with personal experiences with mental illnesses as either a patient or a close relative, such personal involvement did not moderate the effect. Implications of these findings and limitations of the study are discussed.
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