The Model communication skills lexicon, developed by the Southwest Regional Laboratory (SWRL) for use in communication skills instruction in kindergarten through sixth grade, consists of three word lists--an entry list, a general list, and a technical list. The Model 3 entry lexicon (Rhode, 1972)--based on a predominately white sample--was compared with the Thomas (1962) and Legum, Pfaff, Tinnie, and Nicholas (1971) lexicons--both based on black samples. Words unique to any lexicon were categorized and checked to see if any of them were important enough to require supplemental teaching. Most words present in one lexicon but lacking in the others could be easily accounted for by sampling error. Thus, it was concluded that the entry lexicon is probably adequate for use with black kindergarten children from low socioeconomic backgrounds. (Author/RB)