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The Official Guide to the MCAT Exam

Percent of MCAT Retesters Attaining Specified Biological Sciences Score Changes

Broken Down by Initial Score

Initial BS Score

-4 or more

-3

-2

-1

0

1

2

3

4

5

6

7 or more

N

1

121

14

33 

21

9

5

2

5

43

2

2

16

28

20

17

10

5

2

1

186

3

1

8

22

24

21

15

7

2

1

0

407

4

1

2

9

18

27

22

11

8

4

1

0

870

5

0

1

4

10

17

24

17

18

7

3

0

0

1346

6

0

1

5

12

20

21

23

14

4

1

0

0

1841

7

0

1

4

13

18

27

23

10

2

0

0

0

2489

8

0

2

5

11

24

28

21

6

2

0

0

0

3186

9

0

2

5

16

27

32

12

5

1

0

0

2802

10

1

2

8

21

33

22

10

3

1

0

1748

11

1

3

12

34

25

18

6

0

0

529

12

3

8

29

30

16

11

3

0

152

13

4

13

29

27

18

9

0

45

14

36

27

18

18

0

0

11

1Each cell entry is the percentage of repeaters at the specific initial score level who obtained each score gain or loss. For example, of the 43 repeaters who initially scored 1 in Biological Sciences, 12% stayed the same upon retesting; 14% increased their score by 1 point; 33% increased their score by 2 points; 21% increased their score by 3 points; 9% increased their score by 4 points; 5% increased their score by 5 points; 2% increased their score by 6 points; and 5% increased their score by 7 or more points.

 

 

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