摘要：The goal of the current study was to investigate the effects of critical thinking skill on EFL learners’ cause and effect essay writing and their attitudes towards it. To achieve this goal, 60 Iranian upper-intermediate EFL learners were randomly divided into two equal control and experimental groups. After evaluating their knowledge of writing, the conventional teaching methods were used for the control group while an eight-step method was used to promote the critical thinking skill for the experimental group. Then the participants sat for the second test to assess the effect of critical thinking instruction and to compare the groups with each other. Elicitation of their attitudes towards the method was done by the questionnaire. The results revealed that the critical thinking instruction had meaningful consequences on the cause and effect essay writing of the participants, and the participants had positive attitudes towards the training. The findings of the research can recommend useful suggestions for the instruction of writing and critical thinking skills.
