The State of Texas implemented the No Pass-No Play Rule within House Bill 72 in the spring semester of 1985. The addition of this section to the state education code was a part of the state's efforts toward educational reform. The perceived rationale implied in House Bill 72 is that extracurricular activities can inspire student motivation and increase student achievement. The No Pass-No Play Rule seems to imply that there is a relationship between student achievement and extracurricular activities, and further implies that a student can be motivated to achieve by the desire to continue to participate in extracurricular activities. The problem of this study was a comparison of academic achievement for high school pupils involved in extracurricular activities and those who did not participate in extracurricular activities under the Texas No Pass-No Play Rule. The purpose of this study was to determine the impact of extracurricular activities on the academic achievement of high school students, specifically looking at the years 1983 through 1986, when the No Pass-No Play Rule was implemented. This study was an ex post facto study with data obtained from a cooperating Texas school district. Students were matched on critical variables, and their scores on a measure of achievement were analyzed to determine if there was any relationship between extracurricular activities and achievement. Repeated measures of achievement were also analyzed to determine if students involved in extracurricular activities scored differently from those not involved in extracurricular activities over this time period in which the No Pass-No Play Rule was implemented. Results indicated that for those students involved in this study, there was no significant difference on a measure of achievement for students involved in extracurricular activities and those who did not participate. Results also indicated that in the years 1983 through 1986 all students involved in the study declined slightly in their achievement scores, regardless of involvement with extracurricular activities.