Research Article Effectiveness of energy conservation awareness package on energy conservation behaviors of off-campus students in Nigerian universities Theresa Chinyere Ogbuanya and Nuhu Iliya Nungse Abstract Poor energy conservation behaviors among off-campus students are a form of irrational behavior that often results in erratic power supply within the students’ village. The present study, there- fore, explored the effectiveness of energy conservation awareness package (ECAP) on energy conservation behaviors of off-campus students residing within students’ villages of Nigerian Universities. A pretest-posttest experimental and waitlist control group which involved 328 participants were quantitatively assessed. Findings of the posttest depict that poor energy con- servation behavior of off-campus students momentously weaken compared to a waitlist control group. This is evident where the mean difference of 33.35 on level of engaging in energy con- servation behavior for students exposed to ECAP is greater than 1.20 for those not exposed to the therapy. Also, 27.97 mean difference on likelihood of engaging in energy conservation behav- ior is greater than 0.54 for those not exposed to the therapy. In extension, results of 2 and 4- months follow-up appraisal proved that the momentous decline in negative energy conservation behavior of ECAP participants was upheld. By implication, when off-campus students subscribe to the use of energy-saving bulbs instead of incandescent bulbs and switching off the unnecessary lightings among others as evident in this study would go a long way in conserving energy. Industrial Technical Education, University of Nigeria, Enugu, Nigeria Corresponding author: Nuhu Iliya Nungse, University of Nigeria, Nsukka 410001, Nigeria. Email: nuhu.nungse.pg80755@unn.edu.ng Energy Exploration & Exploitation ! The Author(s) 2020 DOI: 10.1177/0144598720975133 journals.sagepub.com/home/eea Creative Commons CC BY: This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). 2021, Vol. 39(5) 1415–1428