Final answer:
Retreaters are most likely to experience depression after retirement as they tend to withdraw from society and become isolated, in contrast to continuers, easy gliders, and searchers who engage in activities or seek new interests.
Step-by-step explanation:
Based on the work by Schlossberg on retirement pathways and strategies, retreaters are most likely to experience depression following retirement. Retreaters tend to withdraw from active engagement with society after they retire. They might stop pursuing new interests or social activities, leading to isolation, loneliness, and an increased risk of depression. This contrasts with the other strategies such as 'continuers' who maintain their pre-retirement activities, 'easy gliders' who take retirement in stride and go with the flow, and 'searchers' who actively seek out new ventures.