 The experiment identified that children produce heterogeneous parts-of-speech answers (words thematically related) to prompted words and adults tended to produce homogenous parts of speech answers (syntactically related) to the same prompts.In order to clarify this observation, Brown also conducted a "Usage Test" in which he used nonsense words in specific grammatical contexts and asked subjects what they understood the words to mean.Younger children answered in a similar fashion to the word association test, making thematic assumptions of the nonsense words, while adults again made grammatical assumptions to word's meaning.