Application form: EWAO Application form to become an EWAO (European Wide Accrediting Organisation) in the EAP (European Assocation for Psychotherapy). EWAO Application form (MS Word, 250,0 KB) Application form: EWO Application form to become an EWO (European Wide Organisation) in the EAP (European Assocation for Psychotherapy). EWO Application form (MS Word, 261,3 KB) 15 questions about Scientific Validity In order to become a European Wide Organisation, the psychotherapy method or modality must be recognized by the EAP as "scientifically valid". You will find the questionnaire with a detailed explanation here.