The goal of satconcordance is to make it easy to recode a column of SAT® scores into new or old, SAT® or ACT® scores.
This package provides functions to recode SAT® scores according to any table in the SAT® Concordance Tables (Released 5/9/2016): this includes new SAT® to old SAT® values, old SAT® to new SAT® values, new SAT® to ACT® values, and ACT® to new SAT® values. All functions call dplyr::recode() to perform optimized recodes. Each function accepts a vector of values, recodes it, and returns the recoded vector. Missing and unmatched values are coded as missing.
SAT® is a trademark registered by the College Board, which is not affiliated with, and does not endorse, this website or code base. ACT® is a trademark registered by the ACT, which is not affiliated with, and does not endorse, this website or code base.
You can install satconcordance from github with:
# install.packages("devtools")
devtools::install_github("capturelabs/satconcordance")suppressMessages(require("satconcordance"))
suppressMessages(require("dplyr"))
# Recode new SAT (1600 scale) to old SAT (2400 scale)
new_sat_vals <- round(sample(400:1600, 10), -1)
old_sat_vals <- new_sat_to_old_sat_2400(new_sat_vals)
new_old_vals <- data.frame(new_sat_vals, old_sat_vals)
new_old_vals %>%
mutate(old_sat_vals_piped = new_sat_to_old_sat_2400(new_sat_vals))
#> new_sat_vals old_sat_vals old_sat_vals_piped
#> 1 490 690 690
#> 2 1600 2390 2390
#> 3 1040 1420 1420
#> 4 1450 2080 2080
#> 5 1500 2170 2170
#> 6 1230 1710 1710
#> 7 1070 1460 1460
#> 8 1030 1400 1400
#> 9 880 1180 1180
#> 10 490 690 690
# Recode new SAT (1600 scale) to old SAT (1600 scale)
new_sat_vals <- round(sample(400:1600, 10), -1)
old_sat_vals <- new_sat_to_old_sat_1600(new_sat_vals)
new_old_vals <- data.frame(new_sat_vals, old_sat_vals)
new_old_vals %>%
mutate(old_sat_vals_piped = new_sat_to_old_sat_1600(new_sat_vals))
#> new_sat_vals old_sat_vals old_sat_vals_piped
#> 1 1130 1060 1060
#> 2 1040 960 960
#> 3 1140 1070 1070
#> 4 400 400 400
#> 5 950 870 870
#> 6 1060 980 980
#> 7 440 430 430
#> 8 1580 1570 1570
#> 9 1500 1460 1460
#> 10 440 430 430
# Recode new SAT math section to old SAT math section
new_sat_vals <- round(sample(200:800, 10), -1)
old_sat_vals <- new_sat_math_to_old_sat_math(new_sat_vals)
new_old_vals <- data.frame(new_sat_vals, old_sat_vals)
new_old_vals %>%
mutate(old_sat_vals_piped = new_sat_math_to_old_sat_math(new_sat_vals))
#> new_sat_vals old_sat_vals old_sat_vals_piped
#> 1 210 200 200
#> 2 580 560 560
#> 3 400 360 360
#> 4 610 590 590
#> 5 790 780 780
#> 6 650 630 630
#> 7 400 360 360
#> 8 740 710 710
#> 9 210 200 200
#> 10 270 240 240
# Recode new SAT writing and language test to old SAT writing section
new_sat_vals <- sample(10:40, 10)
old_sat_vals <- new_sat_writing_to_old_sat_writing(new_sat_vals)
new_old_vals <- data.frame(new_sat_vals, old_sat_vals)
new_old_vals %>%
mutate(old_sat_vals_piped = new_sat_writing_to_old_sat_writing(new_sat_vals))
#> new_sat_vals old_sat_vals old_sat_vals_piped
#> 1 25 430 430
#> 2 20 350 350
#> 3 39 760 760
#> 4 27 470 470
#> 5 19 340 340
#> 6 26 450 450
#> 7 12 230 230
#> 8 23 400 400
#> 9 36 680 680
#> 10 34 630 630
# Recode new SAT reading test to old SAT critical reading section
new_sat_vals <- sample(10:40, 10)
old_sat_vals <- new_sat_reading_to_old_sat_reading(new_sat_vals)
new_old_vals <- data.frame(new_sat_vals, old_sat_vals)
new_old_vals %>%
mutate(old_sat_vals_piped = new_sat_reading_to_old_sat_reading(new_sat_vals))
#> new_sat_vals old_sat_vals old_sat_vals_piped
#> 1 22 400 400
#> 2 15 260 260
#> 3 19 340 340
#> 4 31 570 570
#> 5 21 380 380
#> 6 10 200 200
#> 7 17 280 280
#> 8 28 520 520
#> 9 40 790 790
#> 10 38 720 720
# Recode new SAT EBRW section to old SAT writing plus critical reading sections
new_sat_vals <- round(sample(200:800, 10), -1)
old_sat_vals <- new_sat_ebrw_to_old_writingreading(new_sat_vals)
new_old_vals <- data.frame(new_sat_vals, old_sat_vals)
new_old_vals %>%
mutate(old_sat_vals_piped = new_sat_ebrw_to_old_writingreading(new_sat_vals))
#> new_sat_vals old_sat_vals old_sat_vals_piped
#> 1 440 790 790
#> 2 800 1590 1590
#> 3 430 770 770
#> 4 430 770 770
#> 5 780 1540 1540
#> 6 720 1370 1370
#> 7 770 1510 1510
#> 8 240 440 440
#> 9 620 1120 1120
#> 10 260 450 450
# Recode new SAT (1600 scale) to ACT
new_sat_vals <- round(sample(560:1600, 10), -1)
act_vals <- new_sat_to_act(new_sat_vals)
new_act_vals <- data.frame(new_sat_vals, act_vals)
new_act_vals %>%
mutate(act_vals_piped = new_sat_to_act(new_sat_vals))
#> new_sat_vals act_vals act_vals_piped
#> 1 1080 21 21
#> 2 960 18 18
#> 3 1370 29 29
#> 4 1260 26 26
#> 5 1300 27 27
#> 6 1370 29 29
#> 7 1300 27 27
#> 8 1510 33 33
#> 9 980 19 19
#> 10 990 19 19
# Recode new SAT writing and language section to ACT Enlish/Writing test
new_sat_vals <- sample(17:40, 10)
act_vals <- new_sat_writing_to_act_english(new_sat_vals)
new_act_vals <- data.frame(new_sat_vals, act_vals)
new_act_vals %>%
mutate(act_vals_piped = new_sat_to_act(new_sat_vals))
#> new_sat_vals act_vals act_vals_piped
#> 1 32 25 NA
#> 2 19 13 NA
#> 3 17 11 NA
#> 4 26 19 NA
#> 5 37 32 NA
#> 6 31 24 NA
#> 7 25 18 NA
#> 8 20 13 NA
#> 9 27 20 NA
#> 10 33 26 NAsuppressMessages(require("satconcordance"))
suppressMessages(require("dplyr"))
# Recode old SAT (2400 scale) to new SAT (1600 scale)
old_sat_vals <- round(sample(600:2400, 10), -1)
new_sat_vals <- old_sat_to_new_sat_2400(old_sat_vals)
old_new_vals <- data.frame(old_sat_vals, new_sat_vals)
old_new_vals %>%
mutate(new_sat_vals_piped = old_sat_to_new_sat_2400(old_sat_vals))
#> old_sat_vals new_sat_vals new_sat_vals_piped
#> 1 2070 1450 1450
#> 2 1700 1220 1220
#> 3 1860 1320 1320
#> 4 2090 1460 1460
#> 5 1210 900 900
#> 6 960 740 740
#> 7 1160 870 870
#> 8 600 400 400
#> 9 790 600 600
#> 10 1090 820 820
# Recode old SAT (1600 scale) to new SAT (1600 scale)
old_sat_vals <- round(sample(400:1600, 10), -1)
new_sat_vals <- old_sat_to_new_sat_1600(old_sat_vals)
old_new_vals <- data.frame(old_sat_vals, new_sat_vals)
old_new_vals %>%
mutate(new_sat_vals_piped = old_sat_to_new_sat_1600(old_sat_vals))
#> old_sat_vals new_sat_vals new_sat_vals_piped
#> 1 430 450 450
#> 2 1510 1540 1540
#> 3 880 960 960
#> 4 480 520 520
#> 5 420 430 430
#> 6 820 900 900
#> 7 750 840 840
#> 8 630 730 730
#> 9 1380 1430 1430
#> 10 1460 1500 1500
# Recode old SAT writing plus critical reading sections to new SAT EBRW section
old_sat_vals <- round(sample(400:1600, 10), -1)
new_sat_vals <- old_sat_writingreading_to_new_ebrw(old_sat_vals)
old_new_vals <- data.frame(old_sat_vals, new_sat_vals)
old_new_vals %>%
mutate(new_sat_vals_piped = old_sat_writingreading_to_new_ebrw(old_sat_vals))
#> old_sat_vals new_sat_vals new_sat_vals_piped
#> 1 920 510 510
#> 2 1010 560 560
#> 3 1450 750 750
#> 4 450 260 260
#> 5 460 270 270
#> 6 800 450 450
#> 7 1120 620 620
#> 8 1080 600 600
#> 9 1130 620 620
#> 10 1190 650 650
# Recode old SAT math section to new SAT math section (200-800 scale)
old_sat_vals <- round(sample(200:800, 10), -1)
new_sat_vals <- old_sat_math_to_new_sat_math_section(old_sat_vals)
old_new_vals <- data.frame(old_sat_vals, new_sat_vals)
old_new_vals %>%
mutate(new_sat_vals_piped = old_sat_math_to_new_sat_math_section(old_sat_vals))
#> old_sat_vals new_sat_vals new_sat_vals_piped
#> 1 430 470 470
#> 2 610 630 630
#> 3 390 430 430
#> 4 610 630 630
#> 5 660 690 690
#> 6 250 280 280
#> 7 740 760 760
#> 8 720 750 750
#> 9 590 610 610
#> 10 760 780 780
# Recode old SAT math section to new SAT math test (10-40 scale)
old_sat_vals <- round(sample(200:800, 10), -1)
new_sat_vals <- old_sat_math_to_new_sat_math_test(old_sat_vals)
old_new_vals <- data.frame(old_sat_vals, new_sat_vals)
old_new_vals %>%
mutate(new_sat_vals_piped = old_sat_math_to_new_sat_math_test(old_sat_vals))
#> old_sat_vals new_sat_vals new_sat_vals_piped
#> 1 530 28.0 28.0
#> 2 680 35.5 35.5
#> 3 450 24.5 24.5
#> 4 250 14.0 14.0
#> 5 240 13.0 13.0
#> 6 300 17.5 17.5
#> 7 780 39.5 39.5
#> 8 720 37.5 37.5
#> 9 270 15.5 15.5
#> 10 530 28.0 28.0
# Recode old SAT writing test to new SAT writing and language section
old_sat_vals <- round(sample(200:800, 10), -1)
new_sat_vals <- old_sat_writing_to_new_sat_writing(old_sat_vals)
old_new_vals <- data.frame(old_sat_vals, new_sat_vals)
old_new_vals %>%
mutate(new_sat_vals_piped = old_sat_writing_to_new_sat_writing(old_sat_vals))
#> old_sat_vals new_sat_vals new_sat_vals_piped
#> 1 490 28 28
#> 2 560 31 31
#> 3 280 16 16
#> 4 780 40 40
#> 5 300 17 17
#> 6 700 37 37
#> 7 360 21 21
#> 8 620 34 34
#> 9 510 29 29
#> 10 260 14 14
# Recode old SAT critical reading test to new SAT reading section
old_sat_vals <- round(sample(200:800, 10), -1)
new_sat_vals <- old_sat_reading_to_new_sat_reading(old_sat_vals)
old_new_vals <- data.frame(old_sat_vals, new_sat_vals)
old_new_vals %>%
mutate(new_sat_vals_piped = old_sat_reading_to_new_sat_reading(old_sat_vals))
#> old_sat_vals new_sat_vals new_sat_vals_piped
#> 1 310 18 18
#> 2 570 31 31
#> 3 580 31 31
#> 4 260 15 15
#> 5 630 34 34
#> 6 610 33 33
#> 7 400 22 22
#> 8 590 32 32
#> 9 600 32 32
#> 10 640 34 34
# Recode ACT to new SAT (1600 scale)
act_vals <- sample(11:36, 10)
new_sat_vals <- act_to_new_sat(act_vals)
act_new_vals <- data.frame(act_vals, new_sat_vals)
act_new_vals %>%
mutate(new_sat_vals_piped = act_to_new_sat(act_vals))
#> act_vals new_sat_vals new_sat_vals_piped
#> 1 29 1360 1360
#> 2 13 740 740
#> 3 16 870 870
#> 4 23 1140 1140
#> 5 31 1430 1430
#> 6 33 1500 1500
#> 7 35 1570 1570
#> 8 36 1600 1600
#> 9 26 1260 1260
#> 10 32 1470 1470
# Recode ACT Enlish/Writing test to new SAT writing and language section
act_vals <- sample(11:36, 10)
new_sat_vals <- act_english_to_new_sat_writing(act_vals)
act_new_vals <- data.frame(act_vals, new_sat_vals)
act_new_vals %>%
mutate(new_sat_vals_piped = act_english_to_new_sat_writing(act_vals))
#> act_vals new_sat_vals new_sat_vals_piped
#> 1 12 19 19
#> 2 29 35 35
#> 3 23 30 30
#> 4 31 36 36
#> 5 33 38 38
#> 6 16 23 23
#> 7 22 29 29
#> 8 15 22 22
#> 9 32 37 37
#> 10 28 34 34