Emmy is a 2-year-old little

girl who never wants to see her mother out of sight. Every morning when her

mother goes to work, Emmy cries all morning without stopping. Emmy’s minder has

threatened to quit her job because of her “unruly and weepy behaviour”. Emmy’s

mother took her to a psychologist, who later diagnosed her with Separation

Anxiety Disorder. The psychologist suggested that when Emmy’s mother is home,

she should not spend all her time with her, but instead keep Emmy busy by

allowing her to play alone so that she can gradually learn to be alone and

eliminate the fear of being away from her mother. Which model of explaining

abnormal behaviour is the psychologist relying on to address Emmy’s behaviour?