The main aim of the present study was to explore the relative contribution of academic achievement in relation to their metacognition, self-confidence and their family environment. In the present study, a sample of 200 students studying in class XI has been selected from Ghaziabad District. The collection of data were based on Metacognition inventory by Govil (2003), Self-confidence inventory by Agnihotri (1987) and Family Environment scale by Bhatia and Chadha (1993). To draw inferences from the obtained results inferential statistics like Analysis of Variance (ANOVA) and t-test were used. The statistical data of the study reveals the following main findings: There exists significant and positive relationship between academic achievement and metacognition and Family Environment of 10+1 students. There exists significant and negative but low relationship between academic achievement and self-confidence of 10+1 students.