evidence against

• alloy and abramson
• asked pps with and without depression to estimate how much control they had over a flashing light
• found that pps with major depression estimated more accurately than control group
• suggested that not all people with major depression have irrational beliefs
• mcgufin et al suggested that irrational negative beliefs may not be only cause of depression
• concordance rate for depression for monozygotic twins was 46%
• concordance rate for depression for dizygotic twins is 20%
• genetic factors contribute to major depression