This study compares the effect of massed practice (continuous practice without rest) and spaced practice (practice with rest intervals) in acquiring new skills. The results show that spaced learning is more effective in improving performance and retention. The study analyzes the mean and standard deviation of the scores of undergraduate psychology students and uses one sample t-test to determine the significance of the differences between massed and spaced learning. The findings support the alternative hypothesis that spaced learning is more effective. The study suggests that providing rest intervals during practice sessions can enhance learning and performance.