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SAT Test Demographics by Income and Ethnicity

The disparity in SAT scores by income and ethnicity was a major factor in our decision to offer our SAT Prep material for free.

To illustrate this disparity we looked at the College Board’s 2009 California demographic research study and parsed out the data showing scores by income and ethnicity, and then added an aggregate mean for additional review. This data shows that test-takers with family incomes of less than $20,000 a year had a mean score of 1310 while test-takers with family incomes of over $200,000 had a mean score of 1715, a difference of 405 points. Further calculations showed a 40-point average score increase for every additional $20,000 in income. Comparing the scores by income against the scores by ethnicity one can further extrapolate which ethnicity is able to spend more on SAT test preparation.

Lets look at some of the data below:

Mean SAT Test Scores by Family Income
SAT	Test-Takers			Critical Reading		Mathematics		Writing
Test-Takers Who Described Themselves As:		Number	Pct	Mean	SD	Mean	SD	Mean	SD
$0 - $20,000		18,412	14	432	99	447	111	431	97
$20,000 - $40,000		24,139	18	457	99	470	110	445	97
$40,000 - $60,000		18,606	14	484	102	495	111	481	100
$60,000 - $80,000		16,840	12	504	101	514	109	499	100
$80,000 - $100,000		14,832	11	521	101	532	109	516	101
$100,000 - $120,000		13,292	10	529	100	542	108	525	101
$120,000 - $140,000		7,076	5	531	100	544	107	528	101
$140,000 - $160,000		5,809	4	539	100	555	106	537	101
$160,000 - $200,000		7,124	5	543	101	555	108	541	104
$200,000 +		10,210	7	565	103	581	107	569	106
No Response		70,961		505	119	520	128	505	120

Aggregate SAT Score by Income
Test-Taker Family Incomes:	Total Mean SAT Score	Improvement by Income
$0 - $20,000	1310
$20,000 - $40,000	1372	+62
$40,000 - $60,000	1460	+88
$60,000 - $80,000	1517	+57
$80,000 - $100,000	1569	+52
$100,000 - $120,000	1596	+27
$120,000 - $140,000	1603	+7
$140,000 - $160,000	1631	+28
$160,000 - $200,000	1639	+8
$200,000 +	1715	+76
Average Score Improvement per $20,000 increase in Annual Income:		+40

Mean SAT Test Scores by Ethnicity
SAT	Test-Takers			Critical Reading		Mathematics		Writing
Test-Takers Who Described Themselves As:		Number	Pct	Mean	SD	Mean	SD	Mean	SD
American Indian or Alaska Native		1,276	1	497	100	501	102	486	98
Asian, Asian American, or Pacific Islander		44,026	21	515	116	568	124	519	120
Black or African American		13,860	7	439	99	428	102	436	96
Mexican or Mexican American		39,799	19	447	94	451	98	445	91
Puerto Rican		707	0	485	102	483	108	480	98
Other Hispanic, Latino, or Latin American		19,194	9	443	101	441	106	441	99
White		71,501	34	543	99	549	103	539	100
Other		9,164	4	514	112	524	117	519	113
No Response		7,774	4	512	126	513	127	504	124
Total		207,301	100	500	112	513	121	498	112

* Demographic Information by Collegeboard 2009 California

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SAT Test Demographics by Income and Ethnicity

Mean SAT Test Scores by Family Income

Aggregate SAT Score by Income

Mean SAT Test Scores by Ethnicity