[生物] Scoring the SAT II Biology

Scoring on the SAT II Biology is the same as scoring for all otherSAT II tests. For every right answer, you earn one point. For everywrong answer, you lose 1 /4 of apoint. For each question you leave blank, you earn zero points. Thesepoints combined equal your raw score. ETS converts your raw score to ascaled score using a curve tailored to the particular test you take.We've included a raw-to-scaled conversion chart below so you cantranslate your raw score on a practice test into scaled scores.

Raw Score	Scaled Score	Raw Score	Scaled Score	Raw Score	Scaled Score
80	800	49	600	18	420
79	800	48	590	17	410
78	790	47	590	16	410
77	780	46	580	15	400
76	770	45	580	14	390
75	770	44	570	13	390
74	760	43	560	12	380
73	760	42	560	11	370
72	750	41	550	10	360
71	740	40	550	9	360
70	740	39	540	8	350
69	730	38	540	7	350
68	730	37	530	6	340
67	720	36	520	5	340
66	710	35	520	4	330
65	700	34	510	3	330
64	700	33	500	2	320
63	690	32	500	1	320
62	680	31	490	0	310
61	680	30	490	-1	310
60	670	29	480	-2	300
59	660	28	480	-3	300
58	660	27	470	-4	290
57	650	26	470	-5	280
56	640	25	460	-6	280
55	640	24	450	-7	270
54	630	23	450	-8	270
53	620	22	440	-9	260
52	620	21	440	-10	260
51	610	20	430
50	600	19	420

    This chart shows you that your score doesn'tplummet with every question you can't answer confidently. You can dovery well on this test without knowing or answering everything. The keyto doing well on the SAT II Biology is to follow a strategy thatensures you will see and answer all the questions you can answer, whileintelligently guessing on those slightly fuzzier questions.

    For example, on an 80 question test, you could score:

• 800 if you answered 79 right and left 1 blank
• 750 if you answered 73 right, 4 wrong, and left 3 blank
• 700 if you answered 67 right, 8 wrong, and left 5 blank
• 650 if you answered 60 right, 12 wrong, and left 8 blank
• 600 if you answered 54 right, 16 wrong, and left 10 blank

    We'll talk more about these strategies in the next chapter.