Experimental Task
The WSE has traditionally been tested using a tachistoscope, as the durations of the letter string presentations need to be carefully controlled. Recently, stimulus presentation software has allowed much simpler manipulation of presentation durations using computers. The WSE has also been described without a tachistoscope.
A string of letters, usually four or five, is flashed for several milliseconds onto a screen. Readers are then asked to choose which of two letters had been in the flashed string. For example, if "WOSK" had been flashed, a reader might have to decide whether "K" or "H" had been in "WOSK". A WSE arises when subjects choose the correct letter more consistently when letter strings are real words rather than nonwords (e.g. "WKRG") or single letters.
Read more about this topic: Word Superiority Effect
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