Final answer:
False, The lexical decision in Swinney's experiment was not used to measure accuracy of word identification but rather to investigate semantic priming and ambiguity resolution in word processing.
Step-by-step explanation:
The statement that lexical decision in Swinney's experiment was used to measure the accuracy of word identification is FALSE. In Swinney's experiment, the lexical decision task was used to measure the process of accessing word meanings from the mental lexicon, specifically looking at issues related to semantic priming and ambiguity resolution within context. Participants heard sentences that included an ambiguous word and were then presented with words and non-words, and had to rapidly decide if the items were words or non-words. The primary measure was reaction time, not accuracy, and the goal was to see how context and ambiguity affect the speed of word processing.