Percentile ranks of PSAT subscores

 

Discussion: The following tables are from my [DTM] 1977 PSAT/NMSQT score report. I have assigned pseudo-IQ scores in parentheses (which assume a normal distribution) to the percentile ranks. I would expect that this table shows approximately how IQ rises from age 15 (sophomore) to age 17 (senior) on a test which does not correct for age. The average rise in verbal pseudo-IQ's from sophomore to junior is about 5 points, and the average rise in verbal pseudo-IQ's from junior to senior is about 4 points. Since some people drop out of high school at 16, the rise in IQ scores from junior to senior is probably less than that indicated here.

 

Verbal percentile ranks for juniors, sophomores, and seniors

ScoreAll sophomoresAll juniorsAll seniorsCollege-bound juniors
74 & above99+99+99+99+
7399+99+99+99+
7299+99+99+99+
7199+99+99+99+
7099+99+99+99+
6999+99+99+99
6899+99+99+99
6799+99+9999
6699+999999
6599+999998
6499+999998
6399+999997
6299+999897
6199989796 (128)
6099989695 (126)
5999989594 (125)
5899979593 (124)
57999794 (125)92 (123)
56989693 (124)90 (121)
55989592 (123)89 (120)
54979590 (121)87 (118)
539793 (124)89 (120)85 (117)
529692 (123)88 (119)83 (115)
519691 (121)86 (117)80 (114)
5095 (126)90 (121)84 (116)78 (111)
4994 (125)89 (120)82 (115)75 (111)
4893 (124)87 (118)80 (114)72 (110)
4792 (123)85 (117)78 (113)70 (109)
4691 (121)84 (116)76 (112)66 (107)
4590 (121)81 (114)74 (111)63 (105)
4488 (119)79 (113)71 (109)60 (104)
4386 (117)77 (112)68 (108)55 (102)
4283 (115)75 (111)65 (106)53 (101)
4181 (114)73 (110)62 (105)48
4079 (113)71 (109)60 (104)45
3977 (112)68 (108)57 (103)41
3874 (111)64 (106)54 (102)38
3772 (110)61 (105)52 (101)34
3669 (108)58 (103)4931
3565 (106)54 (102)4526
3462 (105)51 (101)4324
3359 (104)50 (100)3921
3256 (103)473618
3151 (101)443216
3047372912
2944352611
284132249
273828227
263225185
252722154
242420133
232117102
22171192
2113971
20--------
Average score32343741

 

Mathematical percentile ranks for juniors, sophomores, and seniors

ScoreAll sophomoresAll juniorsAll seniorsCollege-bound juniors
74 & above99+99+99+99+
7399+99+99+99
7299+99+9999
7199+99+9999
7099+999998
6999+999898
6899+999898
6799+999797
6699+999796
6599+989696
6499989695 (126)
6399989593 (124)
6299979592 (123)
61999694 (125)91 (121)
60999693 (124)89 (120)
599995 (126)92 (123)85 (117)
589894 (125)91 (121)83 (115)
579793 (124)89 (120)81 (114)
569792 (123)87 (118)79 (113)
5596 (128)91 (121)86 (117)76 (112)
5495 (126)90 (121)84 (116)73 (110)
5394 (125)88 (119)82 (115)70 (109)
5293 (124)86 (117)80 (114)68 (108)
5192 (123)85 (117)79 (113)64 (106)
5090 (121)83 (115)77 (112)61 (105)
4989 (120)81 (114)75 (111)58 (103)
4887 (118)79 (113)73 (110)55 (102)
4785 (117)77 (112)70 (109)52 (101)
4683 (115)75 (111)68 (108)49
4581 (114)73 (110)66 (107)45
4479 (113)70 (109)64 (106)41
4376 (112)67 (107)60 (104)38
4274 (111)64 (106)58 (103)35
4172 (110)62 (105)56 (103)32
4069 (108)59 (104)53 (101)30
3966 (107)55 (102)50 (100)27
3862 (105)52 (101)4724
3759 (104)494422
3656 (103)454219
3552 (101)423917
3447373515
3342343113
3238312711
313427249
302822208
292218155
281515114
27111383
267652
254421
242311
231211
221-11-1-
211-1-1-1-
20--------
Average score36394146

Percentile ranks for all juniors, all sophomores, and all seniors are based on a special administration of the PSAT/NMSQT in 1974 and represent the performance of all students at these grade levels, not just those who would normally take the test. Percentile ranks for college-bound juniors are based on the scores of United States citizens who took the 1976 PSAT/NMSQT as juniors and indicated they would enter college in 1978.

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