Quantify or Classify? Recommendations for Ambiguous Loss Versus Boundary Ambiguity

ABSTRACT The theory of ambiguous loss is a psychosocial theory born out of my interdisciplinary interests and training in human development, family science, psychology, sociology, and psychiatry/family therapy. Historically, qualitative and mixed methods advanced this theory; today, an ambiguous loss scale is wanted. What can and cannot be measured? Why are perceptions of ambiguous loss quantifiable while the phenomenon itself is not? Recommendations and critical aspects are presented for new generations who hopefully will further theory development. Instead of the usual epistemological questions about truth and measurement, we ask, “How do people left behind perceive the agonizing stress of missing loved ones?” The goal of ambiguous loss intervention is not to cure or fix (because we cannot), but paradoxically, to build enough resilience in those left behind to move forward with life despite unanswered questions. Today, this theory is applied globally; novel applications are emerging.