Own Score; = f is decreasing function. Liner-in-means. Bad Apple Invidious Comparison Tracking None of the above. + Ui Own Score; = a + BAvgPeer Score² + u Linear-in-means Monotonicity Invidious Comparison Tracking None of the above. OwnScore = f(MaxPeer Score_i) + u f is increasing in the lowest peer score. Bad Apple Monotonicity Invidious Comparison Tracking None of the above.