What makes this study unique is that it's the first to incorporate a «train for transfer» approach — essentially a training intervention designed to have participants practice performing real - world prospective memory tasks in
simulated everyday settings and assess whether the cognitive gains transfer to successful performance at home.
Also, according to Marrone (1998), although the Strange Situation has been criticized for being stressful, it is
simulating everyday experiences, as mothers do leave their babies for brief periods of time in different
settings and often with unfamiliar people such as babysitters.