Seeger et al.
Seeger et al. (1994) studied only device size. Participants included 240 individuals. About 73% of the sample lived in nursing homes and other institutions. Forty-five percent were over 65. Eleven percent used power chairs and 2% used scooters. Both unoccupied and occupied dimensions of device width and length were measured as well as a set of other basic dimensions. Measurements were taken manually using a tape measure, spirit level and, in some cases, a steel square. No reliability study was completed but the “accuracy” of the measurements is reported to be within 5 mm.
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