Frequency Control Word Research Articles

Neighborhood frequency effects and letter visibility in visual word recognition.

Two experiments are described that measured lexical decision latencies and errors to five-letter French words with a single higher frequency orthographic neighbor and control words with no higher frequency neighbors. The higher frequency neighbor differed from the stimulus word by either the second letter (e.g., ASTRE-AUTRE) or the fourth letter (CHOPE-CHOSE). Neighborhood frequency effects were found to interact with this factor, and significant interference was observed only to CHOPE-type words. The effects of neighborhood frequency were also found to interact with the position of initial fixation in the stimulus word (either the second letter or the fourth letter). Interference was greatly reduced when the initial fixation was on the critical disambiguating letter (i.e., the letter P in CHOPE). Moreover, word recognition was improved when subjects initially fixated the second letter relative to when they initially fixated the fourth letter of a five-letter word, but this second-letter advantage practically disappeared when the stimulus differed from a more frequent word by its fourth letter. The results are interpreted in terms of the interaction between visual and lexical factors in visual work recognition.

LEVELS OF CATEGORIZATION AND SIGHT WORD ACQUISITION

Prereading first graders were trained in a group of six sight words drawn from superordinate, basic, and subordinate levels of categorization as well as from a list of frequency control words. After teaching the selected to the students following an interference task, the students were posttested for immediate recall of the previously learned words. They were also tested for recall after a forty‐eight hour delay. Results of the posttesting indicate that the level of categorization from which a word is drawn affects its learnability as a sight word. Students demonstrated that basic level words were easier to learn and recall, regardless of their frequencies.