Working under classical test theory (CTT) and item response theory (IRT) frameworks, this study investigated psychometric properties of the Revised Purdue Spatial Visualization Tests: Visualization of Rotations (Revised PSVT:R). The original version, the PSVT:R was designed by Guay (1976) to measure spatial visualization ability in…

Research was conducted to evaluate how well the "Indiana Reading Assessment--Kindergarten" evaluates various reading skills of kindergarten students. Multiple analyses were conducted; while the results of all the analyses were encouraging, the results derived from the concurrent validity study were most significant. All correlations were…

Research was conducted to evaluate how well the "Indiana Reading Assessment--Grade 1" evaluates various reading skills of grade one students. Multiple analyses were conducted; while the results of all the analyses were encouraging, the results derived from the concurrent validity study were most significant. All the correlations were…

Research was conducted to evaluate how well the "Indiana Reading Assessment--Grade 2" evaluates various reading skills of grade two students. Multiple analyses were conducted; while the results of all the analyses were encouraging, the results derived from the concurrent validity study were most significant. Correlations were either…