<p>In many work contexts, procedural tasks are communicated through lengthy procedural instructions. Previous research suggests that such lengthy instructions can backfire, reducing employee motivation, causing irritation, and hindering performance. Inspired by research in Self-Determination Theory and computer-based instructional design, this experimental laboratory study (<i>N</i> = 93 students; <i>M</i>_<i>age</i> = 19.35 years), which included a control group with long instructions and two experimental groups, sought to determine the effectiveness of two measures to counteract the costs associated with long instructions. Experimental manipulation involved, first, the use of short instructions and, second, the provision of long instructions through user choice. Results showed that both countermeasures reduced reactance and improved accuracy compared to long instructions. While user choice instructions additionally reduced irritation and boredom compared to the other two conditions, the provision of short instructions produced lower productivity compared to the other two conditions. Finally, the mediation model revealed that autonomy need satisfaction accounted for the benefits of user choice on identified motivation and boredom. Theoretical and practical implications and suggestions for future research are discussed.</p>