Repeatability and Reproducibility of Buari-Chen Malay Reading Chart

The purpose of our study was to evaluate the repeatability and reproducibility of Buari-Chen Malay Reading Chart (BCMRC). Thirty normally sighted young adults (mean age: 20.6 years) were recruited based on convenient sampling. They were instructed to be read aloud 2 sets of BCMRC (contextual sentences (CS) set and random words (RW) set) at random sequence in three different sessions. The repeatability limits of the reading speed for contextual sentences (CS) set and random words (RW) set were 45.46 wpm and 29.16 wpm respectively, while the limit for reproducibility was 33.12 wpm for CS set and 28.38 wpm for RW set. Bland and Altman's plot showed good agreement for both sets of BCMRC as most differences of reading speed between reading sessions were placed within the limits of agreement (LoA). The mean difference in repeatability for CS set was 13.14 wpm (95% LoA = 40.81 to -14.53) and 8.96 wpm (95% LoA = 32.63 to -14.70 for RW set. For reproducibility, the mean difference was 11.30 wpm (95% LoA = 36.38 to -13.78) for CS set and 2.79 wpm (95% LoA = 31.13 to -25.55) for RW set. The BCMRC showed good repeatability and reproducibility that supported its usage as reading research tool as well as clinical diagnostic tool.