The major objective was to analyze the impact of ADDIE model in terms of instructional effectiveness at university level. The present study employed quasi experimental design. The researcher planned lessons by following ADDIE model and taught the class. This tool's targeted sample was the entire Masters class (3rd semester of session 2020 to 2022). The researcher gave the class a pre-test before instructing it using the ADDIE model of instruction. After five weeks of instruction, researcher took the post-test for the class and compared the results of control group and experimental group with pre-test. To finish this complex process, researchers used data analysis strategies such as t-test, correlation between marks of pre-test and post-test of experimental group and control group, mean score and standard deviation using SPSS (version 19) and MS Excel. The analysis revealed a statistically significant difference between pre-test and post-test of both groups. Students of experimental group performed better than control group in the post-test, demonstrating that this instructional design model is effective for instruction and can produce better results. The present study recommends that this model may become effective for university teachers.