Transcript Slide 1
COMMON FINAL EXAMS IN BEGINNING AND INTERMEDIATE ALGEBRA TO ADDRESS GRADING VARIATIONS Situation: Many Mathematics classes are sequential. Without sufficient mastery of the prerequisite course material, student success in the following Math class plummets. Problems: Grading variation between instructors of the same courses results in: 1. Failure of students in next Math class if instructor mastery standard is too low. 2. A student equity issue if instructor master level is too high. To address the issue: A common final exam was instituted in Intermediate Algebra in the Fall 2000 semester and in Beginning Algebra in the Spring 2004 semester. Caution: Don’t try this at home! A series of safeguards, logistical coordination and broadband avenues for input and output from participating faculty must be established so that faculty feel their academic freedom is not compromised. Included but not limited to: Common final czars chosen Course topics approved by division Instructors submit questions on selected topics Instructors allowed to supplement final exam Instructors given percentage range to count final exam Holistic grading evolution Instructors re-grade own exams Coordination of rooms for 1000 students Included but not limited to: continue Proctoring assignments Czars with some faculty not teaching the course compose exam Old exams put online Conferences between division chair and each faculty member teaching common final class Results matrix by class SLO’s Item Analyses Faculty workshops – closing the loop Intermediate Algebra Instructor Data Fall 2004 exam mean 49.83 mean GPA exam st. dev 20.18 GPA st. dev. COURSE FT /PT enrolled on census received grade # students took final 2.2216 1.12852 passed exam mean course GPA for exam stds took course z z score final score pass rate pass rate for stds course z per that took exam z success retention completed final 1 101 FT1 41 28 22 14 64.591 3.431 course 2.182 -0.165 -3.596 2 101 FT2 48 39 28 59.417 2.811 GPA 2.625 2.115 -0.696 # 35 for URS exam z stds2.773 took course z3 CO101 FT3 enrolled 26 received 24 students22 18 exam68.909 4.435 2.291z course -2.144 E FT/PT on census grade took final passed mean score final score exam z 4 120 FT4 44 35 31 29 54.935 1.408 2.323 0.498 -0.910 1MEAN 101 FTFT1 41 64.591 -3.596 44.500 2833.500 2228.500 14 21.000 61.0873.431 2.978 2.182 2.481 -0.165 1 101 PT1 47 36 32 24 57.188 2.062 1.969 -1.267 -3.330 7 101 PT7 48 47 47 33 33.638 -5.501 2.298 0.463 5.964 1 101 PT1 47 36 32 24 57.188 2.062 1.969 -1.267 -3.330 8 101 PT8 42 36 30 23 36.967 -3.491 2.300 0.381 3.872 2 101 PT2 38 32 27 22 43.963 -1.511 2.185 -0.168 1.343 3 101 PT3 40 26 23 16 57.434 1.807 2.174 -0.203 -2.010 4 101 PT4 56 45 40 33 53.700 1.213 2.400 1.000 -0.213 5 101 PT5 45 39 35 24 55.370 1.624 2.229 0.037 -1.588 6 120 PT6 44 42 38 26 50.553 0.221 2.079 -0.779 -1.000 7 101 PT7 48 47 47 33 33.638 -5.501 2.298 0.463 5.964 8 101 PT8 42 36 30 23 36.967 -3.491 2.300 0.381 3.872 9 101 PT9 53 47 39 26 43.000 -2.114 2.128 -0.517 1.597 10 120 PT10 40 31 31 22 46.433 -0.937 1.967 -1.258 -0.321 11 101 PT11 40 32 28 11 48.536 -0.339 1.607 -2.881 -2.542 12 101 PT12 42 39 37 30 47.270 -0.772 2.405 0.991 1.762 13 101 PT13 43 27 24 16 47.625 -0.535 2.042 -0.781 -0.246 14 101 PT14 41 32 28 25 52.214 0.625 2.042 -0.844 -1.469 15 101 PT15 43 36 33 27 48.030 -0.512 2.152 -0.357 0.156 16 120 PT16 45 37 31 26 45.613 -1.163 2.226 0.021 1.184 MEAN PT 44.188 36.500 32.688 24 47.540 -0.649 2.153 total 866 710 633 473 49.831 2.222 0.341 0.683 0.500 0.583 0.813 pass 0.718 rate per 0.692 retentio 0.923 0.750 success n completed 0.659 0.795 0.829 0.341 0.683 0.500 0.560 0.792 0.706 0.511 0.766 0.667 0.688 0.979 0.702 0.511 0.766 0.667 0.548 0.857 0.639 0.579 0.842 0.688 0.400 0.650 0.615 0.589 0.804 0.733 0.533 0.867 0.615 0.591 0.955 0.619 0.688 0.979 0.702 0.548 0.857 0.639 0.491 0.887 0.553 0.550 0.775 0.710 0.275 0.800 0.344 0.714 0.929 0.769 0.372 0.628 0.593 0.610 0.780 0.781 0.628 0.837 0.750 0.578 0.822 0.703 0.535 0.826 0.658 0.546 0.820 0.666 0.636 pass rate 0.800 for stds that took 0.818 final 0.935 0.636 0.809 0.750 0.702 0.750 0.767 0.815 0.696 0.825 0.686 0.684 0.702 0.767 0.667 0.710 0.393 0.811 0.667 0.893 0.818 0.839 0.734 0.747 Intermediate Algebra Instructor Data Spring 2007 8.56612 exam st. dev 5.53904 mean GPA GPA st. dev. exam mean COURSE FT /PT enrolled on census 2.231405 1.107178 received # students grade took final passed exam mean pass course GPA rate exam z for stds took course course z retenti per score final z score exam z success on compl pass rate for stds 1 2 3 4 120 101 120 101 MEAN FT FT FT FT FT 38 32 39 36 36.25 26 27 35 33 30.25 22 20 34 28 26 17 13 26 22 19.5 7.818 10.900 8.000 7.464 8.375 -0.633 1.884 -0.596 -1.053 -0.176 2.182 2.350 2.059 2.286 2.202 -0.210 0.423 0.479 -1.405 -0.909 -0.313 0.260 1.312 0.447 0.406 0.667 0.611 0.538 0.684 0.844 0.897 0.917 0.834 0.654 0.481 0.743 0.667 0.645 0.773 0.650 0.765 0.786 0.750 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 120 101 101 120 101 101 101 101 101 101 101 101 101 101 101 101 101 MEAN PT total PT PT PT PT PT PT PT PT PT PT PT PT PT PT PT PT PT 41 35 45 19 46 41 26 39 52 34 43 38 43 37 36 28 28 37.118 776 32 22 28 13 38 29 20 23 39 31 35 21 35 31 27 12 21 26.882 578 29 21 21 10 33 23 18 23 28 23 31 17 30 22 24 8 19 22.353 484 23 16 15 8 26 19 17 19 21 21 22 9 23 18 21 4 13 17.353 373 11.414 8.524 7.381 6.400 7.818 8.435 12.111 7.913 6.893 5.174 7.355 9.412 11.633 10.636 11.625 4.375 5.105 8.618 2.769 -0.035 -0.981 -1.237 -0.776 -0.114 2.715 -0.565 -1.598 -2.937 -1.218 0.629 3.033 1.753 2.705 -2.140 -2.723 0.045 2.241 2.190 2.238 2.300 2.455 2.435 2.556 2.348 1.964 2.174 2.161 1.706 2.367 2.455 2.458 1.375 1.947 2.239 0.049 -0.169 0.028 0.196 1.158 0.881 1.242 0.504 -1.277 -0.249 -0.353 -1.957 0.669 0.945 1.004 -2.188 -1.118 0.561 0.457 0.333 0.421 0.565 0.463 0.654 0.487 0.404 0.618 0.512 0.237 0.535 0.486 0.583 0.143 0.464 0.468 0.481 0.780 0.629 0.622 0.684 0.826 0.707 0.769 0.590 0.750 0.912 0.814 0.553 0.814 0.838 0.750 0.429 0.750 0.724 0.745 0.719 0.727 0.536 0.615 0.684 0.655 0.850 0.826 0.538 0.677 0.629 0.429 0.657 0.581 0.778 0.333 0.619 0.646 0.645 0.793 0.762 0.714 0.800 0.788 0.826 0.944 0.826 0.750 0.913 0.710 0.529 0.767 0.818 0.875 0.500 0.684 0.776 0.771 -2.720 -0.134 1.008 1.433 1.933 0.995 -1.473 1.070 0.322 2.688 0.865 -2.587 -2.364 -0.808 -1.701 -0.048 1.605 Variability Comparison Fall 2004/Spring 2007 Fall 2004 Spring 2007 FT /PT course z exam z course z exam z FT1 FT2 FT3 FT4 -3.596 -0.696 -2.144 -0.910 0.423 -1.405 -0.313 1.312 PT1 PT2 PT3 -3.330 1.343 -2.010 -0.213 -1.588 -1.000 5.964 3.872 1.597 -0.321 -2.542 1.762 -0.246 -1.469 0.156 1.184 -2.720 -0.134 1.008 1.433 1.933 0.995 -1.473 1.070 0.322 2.688 0.865 -2.587 -2.364 -0.808 -1.701 -0.048 1.605 PT 4 PT5 PT6 PT7 PT8 PT 9 PT10 PT11 PT12 PT13 PT14 PT15 PT16 PT17 Intermediate Algebra Item Analysis Fall 2004 gray white Version A Version B 1 1 Absolute value inequality 2 2 Equation of a line 3 5 Quadratic Equation 4 6 3x3 Matrix/Cramer's Rule 5 3 Quadratic Inequality 6 4 Inverse Function 7 9 Composition of functions 8 10 Ellipse in standard form 9 13 Negative Exponents 10 14 Rational Quotient 11 7 Mixture Word Problem 12 8 4th degree equation 13 11 Solve quadratic system algebraically 14 12 Difference Quotient 15 15 Graph system of equations 16 16 Rational Equation 17 24 Graph "special" Parabola 18 25 Arithmetic Sequence 19 17 Factor a cubic 20 18 Compounded Interest word problem 21 19 Binomial Expansion 22 20 Graph Hyperbola 23 21 Log Equation 24 22 Graph Log 25 23 Radical Equation gray white Version A Version B 11 7 21 19 Mixture Word Problem Binomial Expansion Full Time Part Time Mean St. Dev. Mean St. Dev. 2.9 1.4 2.5 1.4 1.8 1.9 1.6 1.8 2.8 1.5 2.1 1.5 3.0 1.2 2.4 1.4 2.7 1.3 2.4 1.3 1.7 1.6 1.5 1.5 2.8 1.7 2.0 1.9 1.8 1.3 1.4 1.3 2.7 1.3 2.3 1.5 2.9 1.4 2.5 1.4 2.0 1.9 1.3 1.7 2.6 1.4 1.9 1.5 1.9 1.5 1.6 1.3 2.5 1.8 1.3 1.7 2.9 1.3 2.1 1.5 2.2 1.5 2.0 1.4 1.7 1.9 1.0 1.5 2.8 1.7 2.3 1.8 3.2 1.2 2.9 1.5 1.6 1.5 1.2 1.4 1.8 1.6 1.2 1.4 2.9 1.4 2.3 1.5 2.2 1.6 1.8 1.6 2.3 1.8 1.8 1.8 2.3 1.6 1.8 1.6 Overall Mean St. Dev. 2.6 1.4 1.6 1.8 2.3 1.5 2.5 1.4 2.5 1.3 1.5 1.5 2.1 1.9 1.5 1.3 2.4 1.5 2.6 1.4 1.5 1.8 2.1 1.5 1.6 1.3 1.6 1.8 2.3 1.5 2.0 1.4 1.2 1.6 2.4 1.8 2.9 1.4 1.3 1.4 1.3 1.5 2.4 1.5 1.9 1.6 1.9 1.8 1.9 1.6 Full Time Part Time Overall Mean St. Dev. Mean St. Dev. Mean St. Dev. 2.0 1.9 1.3 1.7 1.5 1.8 1.8 1.6 1.2 1.4 1.3 1.5 Thank you Contact Information Peter Stathis, Chair Division of Mathematics Glendale College [email protected] (818) 240-1000 x 5658 All information can be found online: www.glendale.edu Select Select Select Select Select California campus faculty and staff academic departments mathematics common final exams OR Select Carnegie Projects