The purpose of this study has been the design and validation of an instrument for the evaluation of declarative and procedural knowledge in an invasion sport such as basketball in the school context. 15 expert judges participated in the validation process. The instrument consisted of 34 items distributed in two blocks, declarative and procedural. Answers the following type of questions: Is it useful for?, What is it ?, What is achieved ?, Which one is it? In addition, how is it done? Content validity was calculated using Aiken's V coefficient and its confidence intervals. Cronbach's α coefficient was used for internal consistency. None of the questions that make up the declarative and procedural knowledge test were eliminated by exceeding the exact critical value (V≥.74). The internal consistency of the questions was excellent (α=.95). Therefore, the instrument is valid and reliable for the evaluation of knowledge in school basketball.