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Pearson Product Moment correlation coefficients were computed for seven frequently used measures of life satisfaction, adjustment, and morale. Data on the seven instruments were collected from 259 subjects over the age of 60 representing three clusters: institutionalized older people, those with limited ambulation, and "community" aged. Intercorrelations among the measures indicate a high level of interrelationship.
Nancy Lohmann (Sat,) studied this question.