Those taking part in the study were divided into six groups, based on the amount of time that had passed since the death of their spouse.
وقد قُسم الاشخاص الذين شملهم الاستطلاع الى ست فئات ،‏ وفقا للوقت الذي مضى منذ وفاة رفيق زواجهم .‏