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NAEP Analysis and Scaling → Estimation of Population and Student Group Distributions → Examining the Population-Structure Models Used in NAEP → Proportion of Variance of the Group-Defining Contrasts Accounted for by the Principal Components Used in NAEP Student Group Distribution Models → Proportion of Variance of the Group-Defining Contrasts Accounted for by the Principal Components Used in the Population-Structure Model, Grade 4 Reading National Main Assessment (Accommodations Not Permitted): 2000

NAEP Technical DocumentationProportion of variance of the group-defining contrasts accounted for by the principal components used in the population-structure model, grade 4 reading national main assessment (accommodations not permitted [R2]): 2000

Group-defining contrast	Proportion of variance
Female	0.94
Black	0.96
Hispanic	0.96
Asian	0.93
Mexican	0.94
Puer Ric	0.95
Cubn,Oth	0.96
Hisp-?	0.90
MID CTY7	0.94
FR/LCTY7	0.95
FR/MCTY7	0.94
LAR TWN7	0.92
SML TWN7	0.93
Other	0.94
HS Grad	0.94
Post HS	0.96
COL Grad	0.96
PARED-?	0.90
S East	0.88
Central	0.87
West	0.89
Private	0.93
Catholic	0.92
Modage	0.93
Above	0.93
Black	0.89
Hispanic	0.75
Asian	0.77
IEP-NO	0.87
LEP-NO	0.87
Title-N	0.82
RED PRIC	0.92
Free	0.77
Info N/A	0.84
SCH/REF	0.86
SCH/NP	0.87
TVLIN-0	0.98
TV-QUAD	0.98
HW-NO	0.98
HW-YES	0.99
HWLIN-0	0.99
HWQUAD-0	0.98
HITEM=3	0.96
HITEM=4	0.97
PGS>5	0.83
PGS>10	0.83
O.RELIG	0.92
NONSECT	0.93
LUTHERAN	0.91
G/R 22	0.90
G/R 23	0.89
G/R 24	0.96
G/T 22	0.75
G/T 23	0.75
G/T 24	0.78
G/T 25	0.96
G/T 26	0.79
G/T 27	0.73
G/P 22	0.94
G/P 23	0.95
G/P 24	0.82
G/P 25	0.95
G/M 22	0.93
G/M 23	0.95
R/T 24	0.91
R/T 25	0.91
R/T 26	0.92
R/T 27	0.98
R/T 31	0.91
R/T 32	0.94
R/T 33	0.91
R/T 34	0.91
R/T 35	0.92
R/T 36	0.97
R/T 37	0.92
R/T 41	0.93
R/T 42	0.93
R/T 43	0.92
R/T 44	0.94
R/T 46	0.95
R/T 47	0.95
R/P 24	0.90
R/P 25	0.89
R/P 31	0.91
R/P 32	0.91
R/P 33	0.89
R/P 34	0.88
R/P 35	0.89
R/P 41	0.89
R/P 42	0.97
R/P 43	0.96
R/P 44	0.95
R/P 45	0.95
R/M 31	0.93
R/M 32	0.92
R/M 33	0.93
R/M 41	0.91
R/M 42	0.96
R/M 43	0.96
P/T 25	0.77
P/T 26	0.75
P/T 27	0.77
P/T 31	0.93
P/T 32	0.75
P/T 33	0.74
P/T 34	0.79
P/T 35	0.77
P/T 36	0.82
P/T 37	0.95
P/T 41	0.80
P/T 42	0.77
P/T 43	0.88
P/T 44	0.84
P/T 45	0.89
P/T 46	0.97
P/T 47	0.88
P/T 51	0.86
P/T 52	0.80
P/T 53	0.75
P/T 54	0.80
P/T 55	0.94
P/T 56	0.79
P/T 57	0.78
T/M 41	0.90
T/M 42	0.84
T/M 43	0.88
T/M 51	0.83
T/M 52	0.89
T/M 53	0.85
T/M 61	0.97
T/M 62	0.95
T/M 63	0.90
T/M 72	0.87
P/M 32	0.92
P/M 33	0.91
P/M 41	0.94
P/M 42	0.95
P/M 43	0.89
P/M 51	0.87
P/M 52	0.80
SAMP S3	0.84
S/R 22	0.90
S/R 23	0.89
S/R 24	0.96
ARPT NO	0.88
Black	0.93
Hispanic	0.86
Asian AM	0.88
AMER IND	0.95
Other	0.97
B003001M	0.90
B014601B	0.95
B014601C	0.95
B014601M	0.77
B003201B	0.83
B003201C	0.82
B003201M	0.80
B013201N	0.85
B013201I	0.77
B013201M	0.73
B013301N	0.84
B013301I	0.80
B013301M	0.75
B013401N	0.87
B013401I	0.86
B013401M	0.78
B013501N	0.78
B013501I	0.77
B013501M	0.72
B013601N	0.82
B013601I	0.80
B013601M	0.74
B013701N	0.85
B013701I	0.84
B013701M	0.85
B000901N	0.91
B000901I	0.90
B000901M	0.80
B000903N	0.86
B000903I	0.91
B000903M	0.87
B000904N	0.86
B000904I	0.92
B000904M	0.87
B000905N	0.89
B000905I	0.90
B000905M	0.84
S004001B	0.90
S004001C	0.92
S004001D	0.93
S004001E	0.92
S004001M	0.72
B007301B	0.93
B007301C	0.92
B007301D	0.89
B007301M	0.88
B007401B	0.90
B007401C	0.92
B007401D	0.84
B007401M	0.84
B014501B	0.95
B014501C	0.95
B014501D	0.94
B014501M	0.82
R830301B	0.87
R830301C	0.85
R830301D	0.92
R830301M	0.89
R830401B	0.90
R830401C	0.91
R830401D	0.92
R830401M	0.90
RM00501B	0.86
RM00501C	0.87
RM00501D	0.88
RM00501M	0.91
R830501B	0.95
R830501C	0.94
R830501D	0.94
R830501M	0.86
R830502B	0.85
R830502C	0.88
R830502D	0.90
R830502M	0.82
R810801B	0.96
R810801C	0.97
R810801D	0.95
R810801M	0.90
R810201B	0.85
R810201C	0.85
R810201D	0.93
R810201M	0.89
R810901B	0.89
R810901C	0.90
R810901D	0.86
R810901M	0.75
R810902B	0.90
R810902C	0.91
R810902D	0.89
R810902M	0.81
R810903B	0.92
R810903C	0.93
R810903D	0.93
R810903M	0.71
R810904B	0.89
R810904C	0.89
R810904D	0.90
R810904M	0.79
R810905B	0.94
R810905C	0.95
R810905D	0.91
R810905M	0.81
R810906B	0.91
R810906C	0.89
R810906D	0.89
R810906M	0.73
R811005B	0.94
R811005C	0.93
R811005D	0.93
R811005M	0.79
R811006B	0.88
R811006C	0.90
R811006D	0.87
R811006M	0.81
R811007B	0.90
R811007C	0.92
R811007D	0.92
R811007M	0.84
R811009B	0.90
R811009C	0.90
R811009D	0.89
R811009M	0.73
R811002B	0.93
R811002C	0.94
R811002D	0.92
R811002M	0.75
R811004B	0.92
R811004C	0.91
R811004D	0.92
R811004M	0.80
R818101B	0.91
R818101C	0.93
R818101D	0.89
R818101M	0.85
R818102B	0.90
R818102C	0.89
R818102D	0.88
R818102M	0.84
R830001N	0.91
R830001M	0.87
R830101N	0.93
R830101M	0.88
R811301B	0.93
R811301C	0.93
R811301D	0.95
R811301E	0.93
R811301M	0.89
R811302B	0.93
R811302C	0.93
R811302D	0.96
R811302E	0.94
R811302M	0.94
R811303B	0.91
R811303C	0.93
R811303D	0.95
R811303E	0.90
R811303M	0.94
R811304B	0.89
R811304C	0.92
R811304D	0.92
R811304E	0.87
R811304M	0.92
X012101B	0.97
X012101D	0.82
X012101E	0.80
X012101F	0.87
X012101G	0.98
X012101B	0.89
X012101A	0.92
X012101M	0.96
X012201B	0.89
X012201C	0.92
X012201M	0.99
X012301N	0.96
X012301I	0.87
X012301M	0.99
X012401B	0.91
X012401C	0.90
X012401D	0.88
X012401I	0.85
X012501Y	0.95
X012501N	0.88
X012601B	0.95
X012601C	0.92
X012601D	0.84
X012601I	0.88
X012701Y	0.97
X012701N	0.89
X012801B	0.96
X012801C	0.88
X012801D	0.90
X012801M	0.99
X012901Y	0.98
X012901N	0.90
X012901I	0.87
X012901M	0.99
X013001N	0.92
X013001C	0.85
X013001M	0.99
X013101M	0.92
X013102M	0.88
X013103M	0.91
X013104M	0.85
X013105M	0.87
X013107M	0.91
X013109M	0.85
X013203M	0.86
X013204M	0.86
X013206M	0.93
X013208M	0.92
X013211M	0.85
X013301M	0.92
X013302M	0.86
X013303M	0.86
X013401M	0.90
X013402M	0.81
X013403M	0.86
X013404M	0.87
X013501B	0.95
X013501C	0.92
X013501M	0.98
X013601B	0.92
X013601C	0.94
X013601M	0.98
X013701B	0.95
X013801B	0.78
X013801M	0.97
X013901B	0.95
X013901C	0.96
X013901D	0.92
X013901E	0.96
X013901I	0.94
X013901M	0.99
X014001D	0.94
X014001E	0.97
X014001I	0.97
X014001M	0.99
X014101B	0.93
X014101C	0.97
X014101D	0.92
X014101E	0.93
X014101I	0.94
X014201B	0.79
X014201C	0.88
X014201D	0.88
X014201E	0.84
X014201M	0.98
X014301B	0.91
X014301C	0.89
X014301D	0.83
X014301I	0.94
X014401B	0.96
X014401C	0.87
X014401D	0.92
X014501B	0.96
X014501C	0.87
X014501D	0.93
X014501I	0.94
X014501M	0.99
X014601N	0.95
X014601C	0.82
X014701M	0.89
X014702M	0.92
X014706M	0.91
X014707M	0.92
X014708M	0.91
X014709M	0.84
X014801B	0.90
X014801C	0.95
X014801M	0.96
X014901B	0.91
X014901C	0.93
X014901D	0.83
X014901M	0.96
X015001B	0.90
X015001C	0.95
X015001M	0.95
C045901M	0.87
C045902M	0.88
C045903M	0.87
C045904M	0.89
C045905M	0.87
C045906M	0.89
C045907M	0.93
C045908M	0.90
C045909M	0.88
C045909M	0.88
C030901B	0.89
C030901C	0.87
C030901M	0.95
C037101Y	0.91
C037101Y	0.91
C037101N	0.94
C037101M	0.92
C044701B	0.93
C044701C	0.88
C044701D	0.97
C044701M	0.95
C044702B	0.88
C044702C	0.92
C044702D	0.92
C044702M	0.94
C045101B	0.93
C045101C	0.91
C045101D	0.97
C045101M	0.95
C035701N	0.86
C035701M	0.90
C042802N	0.87
C042802M	0.90
C042803N	0.89
C042803M	0.92
C045301N	0.87
C045301M	0.93
C045302N	0.87
C045302M	0.92
C045303N	0.88
C045303M	0.91
C032207B	0.88
C032207N	0.88
C032207M	0.96
C032209B	0.88
C032209N	0.88
C032209M	0.98
C032210B	0.88
C032210N	0.87
C032210M	0.97
C032211B	0.87
C032211N	0.86
C032211M	0.98
C045401B	0.89
C045401N	0.90
C045401M	0.95
C045402B	0.91
C045402N	0.93
C045402M	0.94
C037701B	0.88
C037701C	0.88
C037701D	0.87
C037701M	0.94
C037702B	0.90
C037702C	0.94
C037702D	0.94
C037702M	0.99
C037703B	0.89
C037703C	0.93
C037703D	0.94
C037704B	0.88
C037704C	0.88
C037704D	0.85
C037704M	0.96
C037705B	0.89
C037705C	0.89
C037705D	0.88
C032402B	0.90
C032402C	0.94
C032402D	0.93
C032402M	0.98
C032401B	0.89
C032401C	0.94
C032401D	0.92
C032401M	0.97
C032404B	0.89
C032404C	0.95
C032404D	0.93
C032404M	0.99
C032406B	0.89
C032406C	0.94
C032406D	0.95
C032406M	0.96
C032407B	0.89
C032407C	0.86
C032408B	0.88
C032408C	0.95
C032408D	0.94
C032408M	0.95
C032409B	0.89
C032409C	0.92
C032409D	0.91
C032409M	0.98
C032410C	0.93
C032410D	0.96
C032411B	0.88
C032411C	0.93
C032411D	0.97
C032412C	0.91
C032412D	0.97
C032413B	0.92
C032413C	0.93
C032413D	0.96
C032414B	0.89
C032414C	0.94
C032414D	0.91
C032415B	0.86
C032415C	0.94
C032415D	0.95
C043103B	0.87
C043103C	0.86
C043104B	0.89
C043104C	0.95
C043104D	0.95
C032502B	0.86
C032502C	0.86
C032502M	0.97
C032503B	0.87
C032503C	0.88
C032503D	0.93
C032503M	0.97
C032505B	0.87
C032505C	0.88
C032505D	0.89
C032505M	0.98
C043201B	0.87
C043201C	0.88
C043201M	0.99
C032506B	0.87
C032506C	0.86
C032506D	0.89
C033601B	0.86
C033601C	0.88
C033601D	0.94
C033601M	0.91
C036501B	0.86
C036501C	0.86
C036501D	0.91
C036501M	0.98
C037801B	0.88
C037801C	0.90
C037801D	0.89
C037801E	0.88
C037801F	0.86
C037801G	0.87
C037801H	0.87
C037801M	0.97
C043601B	0.88
C043601C	0.87
C043601D	0.87
C043601E	0.91
C043601M	0.95
C038001B	0.86
C038001C	0.90
C038001D	0.88
C038001G	0.90
C038001M	0.96
C038201	0.86
C038301N	0.88
C043801B	0.86
C043801C	0.89
C043801D	0.91
C043801E	0.89
C043801F	0.91
C043801G	0.89
C043801H	0.89
C043801M	0.89
C043901N	0.92
C044001B	0.88
C044001C	0.88
C044001D	0.90
C044001E	0.89
C044001F	0.88
C044001G	0.88
C044001H	0.93
C044001M	0.95
C044002B	0.89
C044002C	0.90
C044002D	0.90
C044002E	0.91
C044002F	0.89
C044002G	0.89
C044002H	0.96
C044002M	0.95
C044003B	0.88
C044003C	0.89
C044003D	0.87
C044003E	0.89
C044003F	0.90
C044003H	0.93
C044003M	0.93
C044004B	0.90
C044004C	0.90
C044004D	0.90
C044004E	0.87
C044004F	0.87
C044004H	0.90
C044004M	0.97
C044005B	0.87
C044005C	0.89
C044005D	0.87
C044005E	0.87
C044005F	0.87
C044005G	0.85
C044005H	0.87
C044005M	0.96
C044006B	0.88
C044006C	0.88
C044006D	0.87
C044006E	0.88
C044006F	0.87
C044006G	0.89
C044006M	0.94
C044007B	0.89
C044007C	0.94
C044007D	0.93
C044007E	0.89
C044007M	0.97
T067001M	0.94
T067002M	0.88
T067003M	0.91
T067101B	0.91
T067101C	0.92
T067101D	0.92
T067101E	0.94
T067101M	0.97
T067201B	0.96
T067201C	0.96
T067201D	0.97
T067201E	0.97
T067201M	0.97
T067202B	0.95
T067202C	0.95
T067202D	0.95
T067202E	0.97
T067202M	0.95
T067203B	0.96
T067203C	0.96
T067203D	0.96
T067203E	0.97
T067203M	0.96
T067301B	0.86
T067301C	0.83
T067301D	0.91
T067301M	0.96
T056201B	0.88
T056201C	0.87
T056201D	0.88
T056201E	0.87
T056201F	0.85
T056201M	0.91
T056301B	0.91
T056301C	0.95
T056301D	0.94
T056301E	0.88
T056301F	0.86
T067501B	0.85
T067501C	0.88
T067501M	0.85
T067502B	0.88
T067502C	0.95
T067502M	0.98
T067503B	0.85
T067503C	0.95
T067503M	0.97
T067504B	0.87
T067504C	0.99
T067504M	0.99
T067505B	0.89
T067505C	0.99
T067505M	0.99
T067506B	0.84
T067506C	0.96
T067506M	0.99
T067507B	0.90
T067507C	0.98
T067507M	0.98
T067508B	0.87
T067508C	0.92
T067508M	0.92
T067509B	0.87
T067509C	0.94
T067509M	0.96
T067512B	0.90
T067512C	0.89
T067512M	0.86
T067601B	0.87
T067601C	0.81
T067601M	0.83
T067602B	0.84
T067602C	0.97
T067602M	0.98
T067603B	0.86
T067603C	0.94
T067603M	0.97
T067604B	0.89
T067604C	0.97
T067604M	0.98
T067605B	0.88
T067605C	0.93
T067605M	0.95
T067606B	0.84
T067606C	0.90
T067606M	0.97
T067607B	0.90
T067607C	0.97
T067607M	0.98
T067608B	0.86
T067608C	0.97
T067608M	0.98
T067609B	0.85
T067609C	0.90
T067609M	0.95
T067612B	0.87
T067612C	0.87
T067612M	0.89
T067701B	0.89
T067701C	0.92
T067701D	0.92
T067701E	0.89
T067701M	0.95
T067702B	0.87
T067702C	0.88
T067702D	0.89
T067702E	0.87
T067702M	0.90
T067801B	0.89
T067801C	0.90
T067801M	0.92
T067802B	0.87
T067802C	0.86
T067802M	0.96
T067803B	0.83
T067803C	0.85
T067803M	0.94
T067804B	0.86
T067804C	0.86
T067804M	0.97
T067805B	0.90
T067805C	0.91
T067805M	0.97
T067806B	0.87
T067806C	0.87
T067806M	0.96
T067807B	0.82
T067807C	0.85
T067807M	0.97
T041201B	0.89
T041201C	0.88
T041201D	0.92
T041201M	0.96
T067901B	0.85
T067901C	0.85
T067901M	0.99
T067902B	0.83
T067902C	0.85
T067902M	0.97
T068001B	0.84
T068001C	0.85
T068001M	0.99
T068002B	0.83
T068002C	0.86
T068002M	0.99
T068003B	0.85
T068003C	0.85
T068003M	0.98
T068004B	0.84
T068004C	0.86
T068004M	0.97
T068005B	0.87
T068005C	0.85
T068006B	0.88
T068006C	0.88
T068006M	0.98
T068007B	0.88
T068007C	0.91
T068007M	0.98
T068008B	0.86
T068008C	0.84
T068008M	0.98
T068009B	0.89
T068009C	0.90
T068009M	0.97
T068010B	0.81
T068010C	0.87
T068010M	0.98
T068101B	0.87
T068101C	0.87
T068101D	0.86
T068101E	0.87
T068101M	0.99
T046101N	0.83
T046101M	0.98
T046201B	0.91
T046201C	0.89
T046201D	0.92
T046201M	0.97
T068201B	0.90
T068201C	0.94
T068201D	0.94
T068201E	0.88
T068201M	0.99
T068301B	0.88
T068301C	0.87
T068301D	0.84
T068301E	0.88
T068301M	0.85
T068401B	0.87
T068401C	0.88
T068401D	0.88
T068401E	0.87
T068401F	0.84
T068401G	0.87
T068401M	0.89
T068801B	0.94
T068801C	0.94
T068801D	0.92
T068801M	0.97
T068802B	0.89
T068802C	0.90
T068802D	0.89
T068802M	0.92
T068803B	0.90
T068803C	0.92
T068803D	0.92
T068803M	0.92
T068804B	0.86
T068804C	0.84
T068804D	0.87
T068804M	0.98
T068805B	0.87
T068805C	0.88
T068805D	0.88
T068805M	0.98
T068901B	0.87
T068901C	0.88
T068901D	0.86
T068901M	0.93
T069001B	0.87
T069001C	0.90
T069001D	0.91
T069001E	0.92
T069001M	0.84
T069101B	0.84
T069101C	0.85
T069101D	0.87
T069101M	0.98
T069102B	0.87
T069102C	0.90
T069102D	0.88
T069102M	0.98
T069103B	0.86
T069103C	0.90
T069103D	0.88
T069103M	0.96
T069303B	0.83
T069303N	0.84
T069303M	0.97
T069304B	0.84
T069304N	0.84
T069304M	0.95
T069404B	0.86
T069404C	0.86
T069404D	0.87
T069404M	0.98
T069405B	0.90
T069405C	0.88
T069405D	0.88
T069405M	0.99
T069701B	0.85
T069701C	0.85
T069701D	0.84
T069701M	0.99
T069702B	0.85
T069702C	0.87
T069702D	0.85
T069702M	0.97
T069703B	0.88
T069703C	0.87
T069703D	0.86
T069703M	0.98
T069704B	0.87
T069704C	0.87
T069704D	0.85
T069704M	0.99
T069705B	0.85
T069705C	0.87
T069705D	0.87
T069705M	0.98
T069706B	0.86
T069706C	0.87
T069706D	0.84
T069706M	0.98
T069707B	0.90
T069707C	0.93
T069707D	0.88
T069708B	0.87
T069708C	0.89
T069708D	0.85
T069708M	0.98
T069709B	0.85
T069709C	0.87
T069709D	0.87
T069709M	0.99
T069710B	0.92
T069710C	0.93
T069710D	0.87
T069711B	0.90
T069711C	0.95
T069711D	0.92
T069711M	0.98
T069712B	0.85
T069712C	0.88
T069712M	0.98
T069713B	0.84
T069713C	0.84
T069713D	0.84
T069714B	0.87
T069714C	0.86
T069714D	0.89
T069714M	0.99
T069715B	0.86
T069715C	0.86
T069715D	0.89
T069715M	0.99
T069716B	0.90
T069716C	0.91
T069716D	0.86
T069716M	0.99
T070001B	0.86
T070001C	0.87
T070001D	0.88
T070001M	0.96
T070002B	0.89
T070002C	0.92
T070002D	0.89
T070002M	0.97
T070003B	0.87
T070003C	0.88
T070003D	0.88
T070003M	0.97
T070101B	0.88
T070101C	0.88
T070101D	0.86
T070101M	0.97
T070102B	0.84
T070102C	0.87
T070102D	0.86
T070102M	0.96
T070103B	0.85
T070103C	0.87
T070103D	0.85
T070103M	0.98
T070104B	0.91
T070104C	0.92
T070104D	0.86
T070104M	0.98
T070105B	0.90
T070105C	0.90
T070105D	0.90
T070105M	0.94
T070106B	0.92
T070106C	0.91
T070106D	0.86
T070106M	0.96
T070107B	0.86
T070107C	0.85
T070107D	0.86
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Reading Assessment.

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