The study, which has been derived from a larger project, examined how effective ChatGPT, compared to human raters, is for scoring writing tasks when tasks were arranged from simple to complex or vice versa. In so doing, a correlational design was employed. The participants were 113 EFL learners. Two sets of writing tasks were customized based on the SSARC (simplify, stabilize, automatize, reconstruct, complexify) model. The participants were divided into two groups. They took a pre-test and did tasks in two different orders. The tasks were rectified by the researcher and returned to them later. The participants enhanced their text based on comments on tasks. After that, they took a posttest. Human raters and ChatGPT scored the pretests and posttests. A Pearson Correlation test was run to obtain the correlation between a human rater and ChatGPT. The results indicated a strong positive correlation between scores assessed by human raters and those by ChatGPT when tasks were arranged from simple to complex (r = 968, p > 05) or complex to simple (r = 860, p > 05). These findings suggest that ChatGPT can be an effective tool for writing assessments. Suggestions for further research are discussed.
