“…First of all, Bowlby's (1969Bowlby's ( , 1973Bowlby's ( , 1980 attachment theory was applied to the analysis of children's behaviour. The object was not to analyze separation anxiety, which has frequently been done (e.g., Blurton-Jones & Leach, 1972;Cox & Campbell, 1968;Maccoby & Feldman, 1972;Peery & Aoki, 1982;Schwarz, Krolick, & Strickland, 1973;Schwarz & Wynn, 1971;Weinraub & Lewis, 1977), or to test for changes in attachment over time, as has also been done with this age range (e.g., Blehar, 1974;Moskowitz, Schwarz & Corsini, 1977;Portnoy & Simmons, 1978;Roopnarine & Lamb, 1978). Rather, the purpose was to search out primary attachment problems underlying children's manifest behaviour in the preschool setting and their implications for parent involvement.…”