Annual Average Scores for ACAT Biology

Annual Average Scores for ACAT Biology

	Bacteriology	Biochemistry	Cell Physiology	Cellular Biology	Ecology
2002-03	518	490	499	522	511
2003-04	510	509	506	517	504
2004-05	486	512	481	492	484
2005-06	498	529	517	511	498
2006-07	499	532	507	507	514
2007-08	505	547	515	502	516
2008-09	507	543	509	489	510
2009-10	514	520	506	494	515
2010-11	498	565	504	518	490
2011-12	516	555	493	486	507
2012-13	497	519	502	479	492
2013-14	513	516	511	505	482
2014-15	509	516	511	504	480
2015-16	497	499	504	499	491
2016-17	501	521	514	507	494
2017-18	499	504	502	495	492
2018-19	512 (099)	485 (093)	502 (098)	496 (098)	499 (099)
2019-20*	519 (117)	509 (091)	511 (103)	507 (095)	511 (096)
2020-21	504 (102)	516 (094)	507 (103)	507 (103)	504 (099)
2021-22	498 (109)	502 (100)	490 (095)	498 (102)	505 (100)
2022-23	492 (104)	499 (099)	504 (097)	490 (098)	492 (111)
2023-24	471 (103)	495 (102)	516 (134)	487 (106)	509 (121)
2024-25	489 (108)	507 (119)	539 (119)	512 (106)	514 (108)


	Embryology	Genetics	Human Anatomy and Physiology	Invertebrate Zoology	Animal Physiology
2002-03	494	513	522	561	508
2003-04	513	505	518	547	504
2004-05	501	498	480	494	492
2005-06	501	511	498	502	490
2006-07	510	504	508	500	500
2007-08	507	508	496	514	499
2008-09	512	500	448	489	493
2009-10	514	497	457	505	500
2010-11	501	511	480	495	484
2011-12	492	510	502	499	482
2012-13	485	503	503	491	474
2013-14	506	530	514	458	501
2014-15	502	524	522	448	508
2015-16	471	514	516	438	497
2016-17	483	513	515	488	516
2017-18	462	504	510	475	491
2018-19	523 (092)	504 (096)	506 (097)	511 (094)	508 (090)
2019-20*	501 (110)	504 (102)	523 (093)	525 (096)	500 (076)
2020-21	507 (087)	505 (102)	519 (100)	---	514 (103)
2021-22	---	499 (103)	482 (097)	---	500 (104)
2022-23	---	488 (101)	502 (095)	---	486 (105)
2023-24	---	491 (110)	503 (112)	---	426 (091)
2024-25	---	489 (111)	510 (114)	---	488 (090


	Plant Physiology	Vascular Botany	Vertebrate Zoology	Plant and Animal Physiology	Vascular & Non-Vascular Plants
2002-03	499	515	509	550	497
2003-04	504	504	526	526	512
2004-05	467	487	497	507	485
2005-06	529	505	476	479	494
2006-07	524	485	504	529	500
2007-08	541	489	480	515	518
2008-09	507	497	508	503	488
2009-10	572	486	509	527	514
2010-11	537	489	528	501	509
2011-12	479	511	516	479	496
2012-13	524	522	491	484	509
2013-14	530	547	488	490	517
2014-15	497	515	489	482	517
2015-16	516	501	488	491	508
2016-17	535	503	505	518	504
2017-18	506	501	477	511	502
2018-19	477 (108)	502 (104)	504 (100)	500 (100)	488 (090)
2019-20*	469 (031)	546 (089)	499 (097)	493 (090)	529 (083)
2020-21	494 (034)	481 (097)	486 (105)	539 (135)	513 (105)
2021-22	---	486 (093)	463 (098)	558 (113)	513 (113)
2022-23	---	466 (099)	452 (102)	454 (081)	464 (098)
2023-24	---	476 (081)	474 (102)	487 (086)	440 (112)
2024-25	---	486 (101)	477 (082)	484 (082)	465 (101)


	Invertebrate & Vertebrate Zoology	Evolution	Forestry and Wildlife	Overall
2002-03	502	518	560	513
2003-04	515	526	493	508
2004-05	496	504	492	482
2005-06	496	506	476	500
2006-07	513	504	427	508
2007-08	507	505	474	511
2008-09	490	487	543	496
2009-10	496	521	501	501
2010-11	492	496	524	511
2011-12	502	487	532	506
2012-13	503	501	478	495
2013-14	530	527	536	517
2014-15	524	518	482	516
2015-16	519	511	500	508
2016-17	502	510	491	511
2017-18	485	496	470	500
2018-19	498 (098)	497 (098)	526 (090)	506 (096)
2019-20*	507 (103)	509 (087)	533 (078)	510 (101)
2020-21	512 (110)	486 (098)	397 (064)	510 (107)
2021-22	524 (115)	506 (098)	---	505 (105)
2022-23	507 (097)	494 (103)	---	498 (102)
2023-24	527 (098)	489 (093)	---	495 (113)
2024-25	544 (106)	503 (101)	---	512 (116)

Scores are averages based on the performance of graduating seniors in each of the years shown. Average scores typically do not equal 500 because each year's scores are based on a cumulative reference group made up of the previous six years' graduates. The composition and performance of the reference groups differ somewhat from year to year.

*The 2019-20 averages include only tests taken between June 1 and December 31, 2019 because of disruptions in testing and shifts to unsupervised testing due to COVID-19.

Beginning with 2018-19, standard deviations are included in parentheses.

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