What is Item Response Theory?
IRT is the psychometric framework that adaptive tests like CAT use. It estimates a latent trait called theta representing your true ability. Questions target your theta precisely, maximizing measurement accuracy.
WHY MBA 360 implements the 2-parameter logistic IRT model. Each question has calibrated difficulty and discrimination parameters. Correct answers increase theta. Every session is optimally challenging.
Why Adaptive Practice Beats Static Question Banks
Traditional question banks give everyone the same questions. A 99th percentile aspirant wastes time on easy questions. A struggling aspirant gets demoralized. Neither improves efficiently.
Adaptive practice solves this. If your DILR theta is at the 85th percentile level, you only see questions calibrated around that difficulty. As you improve, questions get harder.
Section-Wise Theta Tracking
Separate theta estimates for each section: VARC, DILR, QA, LR, RC. Your MRI is a weighted combination. See exactly which sections pull your readiness down.
MRI Score: Your Readiness Dashboard
MRI is a 0-100 score from section thetas. Daily snapshots track improvement. Growth dashboard shows trends and suggests focus areas. No other free platform offers this level of tracking.