Abstract
In a study of 185 adults ranging in age from 21 to 80 years, it was found that the older subjects' (ages 50 and above) responses on Zaichkowsky's ten-item, bipolar adjective, semantic differential, Personal Involvement Inventory were less internally consistent than the younger participants' responses. In addition to lower reliability, the older adults were more likely to omit multiple items in the scale. This was not the case for Likert-style items included in the study. Similar findings have been reported in a small number of other studies using other semantic differential scales. The semantic differential scaling technique needs a thorough examination for its generalizability to older populations.
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Leisa Reinecke Flynn is assistant Professor of Marketing at Florida State University in Tallahassee, Florida. She wishes to thank Drs. Ronald E. Goldsmith and Charles Hofacker for their helpful insights.
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Flynn, L.R. Do standard scales work in older samples?. Marketing Letters 4, 127–137 (1993). https://doi.org/10.1007/BF00994071
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DOI: https://doi.org/10.1007/BF00994071