The inter and intra-observer reliabilities of data collected by observers trained in the use of the Coach Analysis Instrument (CAI) are reported. The CAI is part of the Computerized Coaching Analysis System (CCAS). The CAI collects data related to the learning environment created by the coach in a team-sport practice situation. Both inter and intra-observer reliabilities are reported for each of the instrument's seven dimensions as well as for the overall instrument. The reliability measures reported are Total Percent Agreement (T) and Cohen's kappa (K). Recommendations pertaining to the development of systematic observation instruments, training program considerations, and reliability measures are presented and discussed. / Education, Faculty of / Curriculum and Pedagogy (EDCP), Department of / Graduate