The 15D questionnaire is available in the following languages: Arabic, Bahasa Indonesia, Bulgarian, Catalan, Chinese for China (simplified), Chinese for Taiwan (traditional), Czech, Danish, Dutch, English, Estonian, Farsi (unofficial) Finnish, French, German, Greek, Hebrew, Hungarian, Icelandic, Italian, Japanese, Latvian, Lithuanian, Malay, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Somalian, Spanish, Swahili, Swedish, Turkish, Urdu, Vietnamese.

New translations

If someone would like to translate the 15D questionnaire into a new language, the translation team should first contact Harri Sintonen (,who will ensure that the team receives all relevant material and information. These include a copy of the official English version of the 15D (and any other language versions the translation team would like to consult in the translation process), translation guidelines (which follow the standard international guidelines for such translations) and translation agreement form, where conditions for translation and use of the translated version are specified. Copyright of all translated 15D versions remains with Harri Sintonen.