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Do the letters F , A and S represent I ndonesian letter fluency stimuli?
Author(s) -
Hendrawan Donny,
Hatta Takeshi,
Ohira Hideki
Publication year - 2015
Publication title -
asia‐pacific psychiatry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.654
H-Index - 21
eISSN - 1758-5872
pISSN - 1758-5864
DOI - 10.1111/appy.12082
Subject(s) - fluency , indonesian , psychology , stimulus (psychology) , significant difference , cognitive psychology , linguistics , mathematics education , mathematics , statistics , philosophy
Abstract Introduction The letters F , A and S , originally used in the E nglish letter fluency stimuli test, have been frequently adopted to assess executive function in many languages. However, few studies reported the significance of FAS testing employed in different languages. The current study explored whether FAS could be widely applied to the Indonesian language. Methods A total of 211 undergraduate students from state and private universities who participated in this study were randomly assigned into four groups. Each group was exposed to six different letter fluency stimuli. The total number of words the participants produced for each letter stimulus were averaged and ranked to determine the degree of difficulty in generating words. Furthermore, the normal distribution and equal ratio comparison were examined to verify the representative letter fluency stimuli. In addition, the effect of sex and university affiliation on letter fluency performance was also analyzed. Results The letters A and S were among the easiest letters used to generate words; however, the letter F was regarded as a difficult stimulus. Furthermore, only the number of words beginning the letter S was distributed according to a normal curve. The number of words starting with the letters F and A were not normally distributed. Although sex difference was not associated with letter fluency performance, difference in university affiliation showed a significant effect on performance. Discussion Our findings suggest that consideration of several stimuli factors is required to accurately measure performance in the letter fluency task in a specific language.