%0 Journal Article %T You That Read Wrong Again! A Transposed %A Jonathan Grainger %A Jonathan Mirault %A Joshua Snell %J Psychological Science %@ 1467-9280 %D 2018 %R 10.1177/0956797618806296 %X We report a novel transposed-word effect in speeded grammaticality judgments made about five-word sequences. The critical ungrammatical test sequences were formed by transposing two adjacent words from either a grammatical base sequence (e.g., ¡°The white cat was big¡± became ¡°The white was cat big¡±) or an ungrammatical base sequence (e.g., ¡°The white cat was slowly¡± became ¡°The white was cat slowly¡±). These were intermixed with an equal number of correct sentences for the purpose of the grammaticality judgment task. In a laboratory experiment (N = 57) and an online experiment (N = 94), we found that ungrammatical decisions were harder to make when the ungrammatical sequence originated from a grammatically correct base sequence. This provides the first demonstration that the encoding of word order retains a certain amount of uncertainty. We further argue that the novel transposed-word effect reflects parallel processing of words during written sentence comprehension combined with top-down constraints from sentence-level structures %K transposed words %K grammaticality judgments %K sentence comprehension %K parallel word processing %K reading %K open data %K open materials %U https://journals.sagepub.com/doi/full/10.1177/0956797618806296