Psychology Quiz 2.0 / 5 based on 1 rating ? PsychologyASEdexcel Created by: lishCreated on: 19-04-13 23:27 what research method did Aninsworth use? controlled observation 1 of 4 who did Disruption of attachment? Robertson and Robertson 2 of 4 what research method did Robertson and Robertson use? Controlled observation & case study 3 of 4 what percentage were securely attached? 70% 4 of 4
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