Training staff initially considered only age in differentiating among police officers. However, more recent analyses make it clear that age cannot be the only factor or even the main factor in police career development stages. Self-concept, career and training needs, and maturation levels depend on a complex set of factors, including sex, age, years of service, current and past assignment, and time in rank. A matrix based on these factors can be a useful tool in predicting whether the pedagogical or androgogical theory of learning is best suited for a particular recruit or inservice training session. The pedogogical model is a teacher-centered process in which staff determine the curriculum, schedules of instruction, methods of instructions, and standards of learning. This approach is uniquely suited for basic courses for recruits. In contrast, both interpersonal and refresher courses are best taught through the androgogical method, which involves self-direction and makes use of the experience levels of the students.