Discrimination of the language behavior of college?and middle?aged encoders

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Abstract
Language samples of college and middle‐aged respondents were syntactically analyzed in order to determine if the use of college students is appropriate for generalizations to other elements of the population. Multiple Discriminant Analysis was employed to determine correct classification of written language samples based on syntactic categories. Twenty‐two college‐aged subjects and 22 middle‐aged subjects responded to a TAT‐type photograph. The correct classification of college and middle‐aged subjects was 93.18%. A second MDA calculated on a three‐way distinction (college/nursing home employees/educators) yielded 90.91% discriminability. Utilizing a four‐way distinction (freshmen/sophomores/nursing home employees/ educators], the correct classification was 81.82%. Finally, an MDA calculated for male/female resulted in 68.18% discriminability. These results cast doubt on the validity of a “science of sophomores.”