Ainsworth's Strange Situation is a procedure for determining the quality of the attachment between caregivers and young children. This procedure, developed in the United States, has here been applied to a Dutch sample of 66 mother-child pairs. In doing so, the stability, reliability, and validity of the instrument have also been investigated. The instrument was validated by means of a questionnaire for the mothers concerning the feelings of (in-)security their children experience in everyday separations.
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