There is a dearth of published information about the Literacy and Numeracy National Assessment (LANNA). This study was designed to explore the relationships among LANNA test scores at Year 7 and, in addition, to examine the predictive capacity of these scores in relation to Year 10 School Certificate English and Mathematics results. As a way of meeting these aims, data were used from one New South Wales secondary school across the period 2001-2007. An examination of these data, drawing on correlation and multiple regression analyses, showed that Reading results are closely associated with Spelling and Writing scores and that there is a strong relationship between Reading and Numeracy scores as evidenced by the fact that the correlations across the various cohorts between Reading and Numeracy averaged 0.62. Additionally, very strong relationships were found between specific LANNA tests and Year 10 results. In general, Year 7 Reading scores were the best predictor of Year 10 English and Year 7 Numeracy scores were the best predictor of Year 10 Mathematics. Across the different student cohorts, the average amount of variance in Year 10 English explained by the LANNA tests was 59 percent; whereas, the average amount of variance for Year 10 Mathematics was 72 percent when using the same set of predictors. The authors of the study conclude their paper by discussing the implications of the findings for school administrators who have access to LANNA scores or who used other nationally-benchmarked Literacy and Numeracy assessments. (Contains 3 tables.)