Study on Schizophrenia A major health study indicated that there′s a birth month effect for schizophrenia. If a child is born during a certain month, he or she has a significantly higher chance of developing schizophrenia later in life, however, the chance of developing schizophrenia only increases by 1 in 10 million. Based on what you know about t-tests, how can there be a significant difference for that particular month when there′s such a small increase in the chances of developing schizophrenia?
