American says its selective surveying gets an 18% response rate and Virgin America gets 20%.

WSJ: What United, American, Delta, Southwest, JetBlue, Alaska, Virgin America Airlines Learn From Customer Surveys

If you are most distressed by OCD, for example, the best demonstrated treatments are antidepressant medications (and selective serotonin reuptake inhibitors in particular) and a form of psychotherapy called response extinction.

CNN: What is EMDR therapy and does it help OCD?