The purpose of this study was to determine the level of implementing a middle school concept in three private Christian schools using Daniel Stufflebeam's CIPP model of program evaluation. The National Middle School Survey was used to measure faculty and administrative perceptions of both the value and actual implementation of middle school concepts that to this point have not been formally evaluated in each school. Additionally, student levels of cognitive and psychological engagement and global life satisfaction were measured using the Student Engagement Instrument and Multidimensional Students' Life Satisfaction Scale. The following evaluation questions were the focus of this study in the evaluation of each private Christian school program: (1) What were the perceptions related to adolescent needs that led to the establishment of a distinct middle school program; (2) What opportunities were afforded teachers to receive training in the process of implementing components of the middle school program; (3) What opportunities were afforded teachers to have questions or concerns addressed during training and implementation of a middle school concept; (4) To what level are the characteristics of adolescent education ("middle school concept") being implemented; (5) According to the Student Engagement Instrument, what are current levels of psychological and cognitive engagement in each school's adolescent population; and (6) According to the Multidimensional Student Life Satisfaction Scale, what are the current levels of global life satisfaction in each school's adolescent population? A mixed-methods approach was used in collecting both qualitative and quantitative data in answering each of the evaluation questions. In conclusion, recommendations for each program and future research needs were discussed. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]