The polarized gluon distribution function of the proton, $\Delta g(x,Q2)$, has been constrained by inclusive measurements from polarized proton-proton collisions at RHIC. Correlation measurements, such as the dijet measurement, provide, at leading order, access to parton kinematics and are thus sensitive to the shape of $\Delta g(x,Q2)$. STAR's large acceptance electromagnetic calorimetry and tracking make it well suited for this measurement. I will present the dijet cross section from an analysis of the 2006 RHIC data and the longitudinal double spin asymmetry from analyses of the 2006 and 2009 data sets.