Do picture‐naming tests provide a valid assessment of lexical retrieval in conversation in aphasia?

Background: Word-finding problems commonly occur in aphasia and can significantly communication. Assessment of this deficit typically involves naming pictures., this method has been criticised as lacking ecological validity. Alternative include the measurement of lexical retrieval in narration or conversation, few published studies have quantified word finding in the latter.: We aimed to identify a reliable and valid assessment of lexical retrieval in, and to elucidate the nature of the relationship between lexical retrieval in naming and in conversation. and Procedures: We developed a quantitative measure of word finding in in aphasia and established the reliability and stability of the method. We the scores of a group of people with aphasia on this measure with their scores on a picture-naming test. and Results: We found significant relationships between picture-naming and a number of key variables analysed in the conversation measure. We propose that scores on picture naming relate to the ability to retrieve nouns in everyday conversation for the people with aphasia who took part in this study.: The use of picture-naming tasks is justified, providing a valid and rich of assessment of lexical retrieval. Further research is required to replicate these with more people with aphasia. We offer the quantitative assessment of developed here for use in research and clinical spheres.