Using Self-Determination Theory, the relationship between motivation (autonomous and controlled), academic self-efficacy, test anxiety, life satisfaction and academic achievement was studied in a group of pre-university students from Lima-Peru. A total of 252 students of both sexes with ages between 16 and 30 years (Mage = 17.69) were assessed. Correlational analyses showed the expected relationships among the studied variables. The path analysis performed gave evidence of the fulfillment of the hypotheses proposed for this study since academic self-efficacy mediated the relationship between autonomous motivation and academic achievement and life satisfaction; also test anxiety mediated the relationship between controlled motivation and academic achievement and life satisfaction. The implications of these empirical findings are discussed in relation to pre-university education in Peru