Recent large-scale genome-wide association studies provide robust evidence that schizophrenia and obsessive-compulsive disorder share significant genetic correlations and overlapping causal variants.
The claim is specific and falsifiable, meeting the checkability criteria. Multiple high-quality genetic studies and GWAS analyses (e.g., papers 2 and 9) directly demonstrate shared genetic architecture, genetic correlation, and pleiotropic loci between schizophrenia and obsessive-compulsive disorder. Consequently, the balance verdict is SUPPORTED.