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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 Science 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 science national main assessment (accommodations not permitted [R2]): 2000

Group-defining contrast	Proportion of variance
Female	0.91
Black	0.95
Hispanic	0.94
Asian	0.92
Mexican	0.94
Puer Ric	0.95
Cubn,Oth	0.97
Hisp-?	0.95
MID CTY7	0.91
FR/LCTY7	0.91
FR/MCTY7	0.93
LAR TWN7	0.91
SML TWN7	0.93
Other	0.95
S East	0.87
Central	0.87
West	0.86
Private	0.94
Catholic	0.92
Modage	0.99
Above	0.99
Black	0.87
Hispanic	0.76
Asian	0.75
IEP-NO	0.88
LEP-NO	0.84
Title-N	0.80
RED PRIC	0.94
Free	0.77
Info N/A	0.85
SCH/REF	0.84
SCH/NP	0.85
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	0.91
O.RELIG	0.91
NONSECT	0.91
LUTHERAN	0.95
G/R 22	0.90
G/R 23	0.90
G/R 24	0.96
G/T 22	0.72
G/T 23	0.69
G/T 24	0.74
G/T 25	0.94
G/T 26	0.77
G/T 27	0.70
G/S 22	0.94
G/S 23	0.93
R/T 24	0.91
R/T 25	0.91
R/T 26	0.92
R/T 27	0.97
R/T 31	0.91
R/T 32	0.93
R/T 33	0.91
R/T 34	0.91
R/T 35	0.91
R/T 36	0.97
R/T 37	0.91
R/T 41	0.93
R/T 42	0.93
R/T 43	0.92
R/T 44	0.94
R/T 45	0.94
R/T 46	0.94
R/T 47	0.95
R/S 31	0.96
R/S 32	0.96
R/S 33	0.95
R/S 41	0.94
R/S 42	0.96
R/S 43	0.96
T/S 41	0.92
T/S 42	0.91
T/S 43	0.92
T/S 51	0.92
T/S 52	0.94
T/S 53	0.92
T/S 61	0.96
T/S 62	0.96
T/S 63	0.94
T/S 71	0.93
T/S 72	0.94
T/S 73	0.94
SAMP S3	0.82
S/R 22	0.89
S/R 23	0.89
S/R 24	0.97
ARPT NO	0.88
Black	0.92
Hispanic	0.84
Asian AM	0.87
AMER IND	0.98
Other	0.98
B003001M	0.84
B014601B	0.96
B014601C	0.97
B014601D	0.96
B014601M	0.78
B003201B	0.87
B003201C	0.82
B003201M	0.76
B008801B	0.97
B008801C	0.98
B008801D	0.99
B008801E	0.98
B008801M	0.81
B000901N	0.93
B000901I	0.93
B000901M	0.76
B000903N	0.92
B000903I	0.94
B000903M	0.76
B000905N	0.95
B000905I	0.94
B000905M	0.79
B016501B	0.92
B016501C	0.94
B016501D	0.97
B016501E	0.97
B016501F	0.98
B016501G	0.96
B016501M	0.66
S004001B	0.94
S004001C	0.93
S004001D	0.97
S004001E	0.97
S004001M	0.70
B016601B	0.91
B016601C	0.93
B016601D	0.89
B016601M	0.73
B016701B	0.90
B016701C	0.93
B016701D	0.85
B016701M	0.72
B009301B	0.94
B009301C	0.93
B009301D	0.94
B009301E	0.87
B009301M	0.83
B016101N	0.77
B016101M	0.73
B009401B	0.91
B009401C	0.93
B009401D	0.90
B009401M	0.81
K811001B	0.88
K811001C	0.89
K811001M	0.68
K811002B	0.86
K811002C	0.84
K811002M	0.84
K811003B	0.81
K811003C	0.82
K811003M	0.86
K813001B	0.98
K813001C	0.98
K813001M	0.79
K811007B	0.90
K811007C	0.89
K811007M	0.85
K811101M	0.93
K811102M	0.89
K811103M	0.92
K811104M	0.91
K811105M	0.88
K811106M	0.88
K811107M	0.86
K811108M	0.96
K811201B	0.91
K811201C	0.90
K811201D	0.92
K811201E	0.95
K811201M	0.83
K811401N	0.96
K811401M	0.85
K812801B	0.82
K812801I	0.83
K812801M	0.83
K812901B	0.94
K812901C	0.93
K812901D	0.92
K812901M	0.87
K813101B	0.91
K813101C	0.87
K813101D	0.91
K813101M	0.88
K813201B	0.92
K813201C	0.92
K813201D	0.94
K813201M	0.77
K813301B	0.89
K813301C	0.92
K813301D	0.90
K813301M	0.86
K813501B	0.88
K813501C	0.92
K813501D	0.96
K813501M	0.82
K813601B	0.88
K813601C	0.87
K813601D	0.91
K813601M	0.82
X012101B	0.93
X012101D	0.83
X012101E	0.85
X012101F	0.89
X012101G	0.95
X012101K	0.91
X012101L	0.91
X012101M	0.97
X012201B	0.90
X012201C	0.91
X012201M	0.97
X012301N	0.94
X012301I	0.93
X012301M	0.98
X012401B	0.92
X012401C	0.92
X012401D	0.88
X012401I	0.87
X012501Y	0.95
X012501N	0.90
X012601B	0.96
X012601C	0.90
X012601D	0.90
X012601I	0.87
X012701Y	0.97
X012701N	0.89
X012801B	0.98
X012801C	0.88
X012801D	0.90
X012801I	0.89
X012801M	0.99
X012901Y	0.99
X012901N	0.90
X012901I	0.89
X013001N	0.94
X013001C	0.85
X013001M	0.99
X013101M	0.89
X013102M	0.84
X013104M	0.89
X013105M	0.84
X013109M	0.80
X013203M	0.84
X013204M	0.83
X013206M	0.98
X013209M	0.87
X013211M	0.86
X013301M	0.91
X013302M	0.84
X013303M	0.90
X013401M	0.92
X013402M	0.85
X013403M	0.84
X013501B	0.93
X013501C	0.94
X013501M	0.98
X013601B	0.90
X013601C	0.93
X013601M	0.98
X013701B	0.92
X013701C	0.95
X013801B	0.73
X013801M	0.98
X013901B	0.96
X013901C	0.96
X013901D	0.94
X013901E	0.96
X013901I	0.95
X013901M	0.99
X014001B	0.96
X014001C	0.98
X014001D	0.96
X014001E	0.98
X014101C	0.96
X014101D	0.96
X014101E	0.96
X014101I	0.95
X014201B	0.80
X014201C	0.87
X014201D	0.88
X014201E	0.89
X014201M	0.99
X014301B	0.92
X014301C	0.88
X014301D	0.88
X014401B	0.97
X014401C	0.89
X014401D	0.88
X014501B	0.96
X014501C	0.86
X014501D	0.89
X014601N	0.94
X014601M	0.97
X014701M	0.85
X014702M	0.93
X014703M	0.96
X014704M	0.91
X014705M	0.90
X014706M	0.88
X014707M	0.90
X014708M	0.85
X014801B	0.89
X014801C	0.92
X014801D	0.86
X014801M	0.96
X014901B	0.91
X014901C	0.94
X014901D	0.80
X014901M	0.95
X015001B	0.92
X015001C	0.93
C045901M	0.86
C045902M	0.87
C045903M	0.86
C045904M	0.88
C045905M	0.90
C045906M	0.85
C045907M	0.92
C045908M	0.92
C045909M	0.88
C045910M	0.86
C044601A	0.88
C044601X	0.94
C030901B	0.85
C030901C	0.84
C030901M	0.93
C037101Y	0.90
C037101Y	0.88
C037101N	0.93
C037101M	0.92
C044701B	0.91
C044701C	0.89
C044701D	0.97
C044701M	0.95
C044702B	0.88
C044702C	0.93
C044702D	0.93
C044702M	0.93
C045101B	0.92
C045101C	0.90
C045101D	0.96
C045101M	0.94
C035701N	0.86
C035701M	0.86
C042802N	0.85
C042802M	0.88
C042803N	0.87
C042803M	0.92
C045301N	0.85
C045301M	0.91
C045302N	0.86
C045302M	0.92
C045303N	0.86
C045303M	0.90
C032207B	0.88
C032207N	0.89
C032207M	0.97
C032209B	0.87
C032209N	0.85
C032209M	0.97
C032210B	0.89
C032210N	0.87
C032210M	0.96
C032211B	0.86
C032211N	0.85
C032211M	0.97
C045401B	0.90
C045401N	0.88
C045401M	0.95
C045402B	0.92
C045402N	0.93
C045402M	0.97
C037701B	0.87
C037701C	0.87
C037701D	0.88
C037701M	0.96
C037702B	0.89
C037702C	0.93
C037702D	0.93
C037702M	0.97
C037703B	0.89
C037703C	0.92
C037703D	0.93
C037703M	0.98
C037704B	0.85
C037704C	0.86
C037704D	0.89
C037704M	0.98
C037705B	0.89
C037705C	0.89
C037705D	0.88
C037705M	0.97
C032402B	0.89
C032402C	0.92
C032402D	0.91
C032402M	0.99
C032401B	0.88
C032401C	0.93
C032401D	0.92
C032401M	0.97
C032404B	0.88
C032404C	0.95
C032404D	0.93
C032404M	0.99
C032406B	0.88
C032406C	0.94
C032406D	0.94
C032406M	0.98
C032407B	0.89
C032407C	0.94
C032407D	0.95
C032408B	0.88
C032408C	0.94
C032408D	0.93
C032408M	0.96
C032409B	0.88
C032409C	0.93
C032409D	0.90
C032409M	0.98
C032410C	0.93
C032410D	0.97
C032411B	0.89
C032411C	0.92
C032411D	0.96
C032412C	0.93
C032412D	0.98
C032413B	0.88
C032413C	0.92
C032413D	0.96
C032414B	0.90
C032414C	0.96
C032414D	0.91
C032414M	0.99
C032415B	0.84
C032415C	0.95
C032415D	0.95
C032415M	0.99
C043103B	0.86
C043103C	0.87
C043104B	0.88
C043104C	0.94
C043104D	0.95
C032502B	0.86
C032502C	0.88
C032502M	0.96
C032503B	0.86
C032503C	0.87
C032503D	0.93
C032503M	0.97
C032505B	0.87
C032505C	0.87
C032505D	0.87
C032505M	0.98
C043201B	0.86
C043201C	0.87
C032506B	0.84
C032506C	0.88
C032506D	0.89
C033601B	0.84
C033601C	0.88
C033601D	0.91
C033601M	0.93
C036501B	0.87
C036501C	0.88
C036501D	0.88
C036501M	0.98
C037801B	0.88
C037801C	0.89
C037801D	0.90
C037801E	0.87
C037801F	0.86
C037801G	0.89
C037801H	0.87
C037801M	0.95
C043601B	0.85
C043601C	0.85
C043601D	0.87
C043601E	0.90
C043601M	0.96
C038001B	0.86
C038001C	0.87
C038001D	0.88
C038001E	0.92
C038001F	0.87
C038001G	0.90
C038001M	0.98
C038201A	0.85
C038201X	0.94
C038301N	0.86
C038301M	0.96
C043801B	0.86
C043801C	0.87
C043801D	0.90
C043801E	0.90
C043801F	0.91
C043801G	0.90
C043801H	0.88
C043801M	0.86
C043901N	0.91
C044001B	0.86
C044001C	0.90
C044001D	0.90
C044001E	0.89
C044001F	0.87
C044001G	0.89
C044001H	0.91
C044001M	0.95
C044002B	0.87
C044002C	0.91
C044002D	0.89
C044002E	0.90
C044002F	0.90
C044002G	0.87
C044002H	0.95
C044002M	0.94
C044003B	0.86
C044003C	0.86
C044003D	0.86
C044003E	0.90
C044003F	0.90
C044003H	0.93
C044003M	0.93
C044004B	0.90
C044004C	0.89
C044004D	0.90
C044004E	0.87
C044004F	0.86
C044004G	0.96
C044004H	0.96
C044004M	0.95
C044005B	0.86
C044005C	0.90
C044005D	0.87
C044005E	0.88
C044005F	0.83
C044005G	0.94
C044005H	0.88
C044005M	0.96
C044006B	0.89
C044006C	0.86
C044006D	0.86
C044006E	0.89
C044006F	0.87
C044006G	0.87
C044006H	0.95
C044006M	0.95
C044007B	0.89
C044007C	0.93
C044007D	0.92
C044007E	0.89
C044007M	0.95
T055901B	0.81
T055901M	0.96
T056002M	0.94
T056003M	0.92
T056004M	0.86
T056005M	0.90
T056006M	0.93
T056007M	0.89
T040301B	0.88
T040301C	0.87
T040301D	0.89
T040301E	0.91
T040301M	0.97
T056101B	0.90
T056101C	0.89
T056101D	0.92
T056101E	0.94
T056101M	0.92
T056102B	0.92
T056102C	0.90
T056102D	0.91
T056102E	0.93
T056102M	0.92
T056201B	0.86
T056201C	0.86
T056201D	0.89
T056201E	0.91
T056201F	0.88
T056201M	0.92
T040501N	0.84
T040501C	0.96
T040501M	0.91
T040506N	0.92
T040506C	0.94
T040506M	0.93
T040504N	0.93
T040504C	0.93
T040504M	0.95
T040507N	0.91
T040507C	0.95
T040507M	0.93
T040508N	0.92
T040508C	0.93
T040508M	0.95
T040505N	0.83
T040505C	0.86
T040505M	0.84
T056301B	0.94
T056301C	0.94
T056301D	0.94
T056301E	0.91
T056301F	0.85
T056301G	0.89
T056301M	0.96
T040701M	0.83
T040706M	0.84
T040707M	0.83
T040703M	0.84
T040704M	0.86
T040710M	0.85
T040711M	0.83
T040712M	0.86
T040713M	0.87
T040708M	0.84
T040709M	0.81
T040705M	0.85
T040801M	0.83
T040807M	0.85
T040808M	0.81
T040803M	0.83
T040804M	0.85
T040814M	0.84
T040815M	0.81
T040816M	0.87
T040817M	0.84
T040809M	0.86
T040810M	0.89
T040811M	0.88
T040812M	0.85
T040813M	0.82
T040805M	0.87
T040806M	0.82
T056401M	0.84
T056402M	0.86
T056403M	0.84
T056404M	0.88
T056405M	0.87
T056413M	0.84
T056414M	0.83
T056415M	0.84
T056416M	0.86
T056406M	0.85
T056407M	0.84
T056408M	0.84
T056409M	0.85
T056410M	0.86
T056411M	0.89
T056412M	0.89
T041201B	0.89
T041201C	0.90
T041201D	0.88
T041201M	0.96
T041302N	0.91
T041302M	0.93
T041303N	0.91
T041303M	0.94
T075001B	0.88
T075001C	0.88
T075001D	0.91
T075001M	0.92
T075002B	0.86
T075002C	0.87
T075002D	0.91
T075002M	0.91
T056801B	0.89
T056801C	0.93
T056801D	0.95
T056801E	0.92
T056801F	0.92
T056801M	0.95
T076001B	0.87
T076001C	0.87
T076001D	0.88
T076001E	0.88
T076001M	0.95
TA75901M	0.87
TB75901M	0.82
TC75901M	0.88
TD75901M	0.88
TA75902M	0.87
TB75902M	0.82
TC75902M	0.86
TD75902M	0.89
TA75903M	0.85
TB75903M	0.85
TC75903M	0.86
TD75903M	0.91
TA75904M	0.83
TB75904M	0.85
TC75904M	0.86
TD75904M	0.91
TA75905M	0.84
TB75905M	0.85
TC75905M	0.85
TD75905M	0.89
TA75906M	0.83
TB75906M	0.84
TC75906M	0.86
TD75906M	0.90
T060401M	0.85
T060402M	0.81
T060404M	0.86
T060405M	0.81
T062601B	0.90
T062601C	0.88
T062601D	0.89
T062601E	0.84
T062601M	0.97
T062701B	0.88
T062701C	0.91
T062701D	0.87
T062701E	0.85
T062701M	0.97
T060501N	0.86
T060501M	0.97
T074601B	0.91
T074601C	0.93
T074601D	0.91
T074601E	0.91
T074601F	0.87
T074601G	0.87
T074601M	0.97
T060601B	0.87
T060601C	0.88
T060601D	0.88
T060601M	0.99
T060602B	0.90
T060602C	0.95
T060602D	0.92
T060602M	0.97
T060603B	0.92
T060603C	0.95
T060603D	0.92
T060603M	0.98
T060604B	0.90
T060604C	0.93
T060604D	0.86
T060604M	0.99
T060605B	0.85
T060605C	0.93
T060605D	0.94
T060605M	0.99
T060606B	0.87
T060606C	0.93
T060606D	0.92
T060606M	0.96
T060607B	0.87
T060607C	0.88
T060607D	0.86
T060607M	0.99
T060608B	0.88
T060608C	0.91
T060608D	0.85
T060608M	0.98
T060609B	0.93
T060609C	0.96
T060609D	0.86
T060609M	0.99
T060702B	0.91
T060702C	0.93
T060702D	0.86
T060702M	0.99
T060703B	0.92
T060703C	0.97
T060703D	0.95
T060703M	0.99
T075401B	0.89
T075401C	0.90
T075401D	0.89
T075401M	0.98
T060801B	0.94
T060801C	0.94
T060801M	0.99
T061101B	0.82
T061101C	0.86
T061101M	0.98
T061102B	0.84
T061102C	0.86
T061102M	0.99
T061103B	0.85
T061103C	0.85
T061103M	0.97
T061104B	0.85
T061104C	0.87
T061104M	0.98
T061105B	0.85
T061105C	0.86
T061105M	0.98
T061106B	0.90
T061106C	0.90
T061106M	0.97
T061107B	0.84
T061107C	0.89
T061107M	0.98
T061108B	0.88
T061108C	0.89
T061108M	0.97
T061109B	0.90
T061109C	0.90
T061109M	0.98
T061201N	0.80
T061201M	0.97
T061301B	0.89
T061301C	0.92
T061301D	0.89
T061301E	0.89
T061301M	0.98
T061302B	0.86
T061302C	0.89
T061302D	0.90
T061302E	0.88
T061302M	0.98
T061308B	0.89
T061308C	0.92
T061308D	0.90
T061308E	0.88
T061308M	0.97
TA61501M	0.89
T061511M	0.91
T061521M	0.91
T061531M	0.90
T061541M	0.90
T061551M	0.89
T061601M	0.88
T061611M	0.89
T061621M	0.86
T061631M	0.85
T061641M	0.86
T061651M	0.90
T044002N	0.90
T044002M	0.97
T061801B	0.90
T061801C	0.91
T061801D	0.93
T061801E	0.89
T061801M	0.79
T062001B	0.86
T062001C	0.84
T062001D	0.85
T062001M	0.94
T062002B	0.86
T062002C	0.85
T062002D	0.87
T062002M	0.93
T062003B	0.87
T062003C	0.85
T062003D	0.91
T062003M	0.93
T062101B	0.81
T062101C	0.92
T062101D	0.87
T062101M	0.95
T062301B	0.89
T062301C	0.89
T062301D	0.90
T062301E	0.86
T062301M	0.96
T076101B	0.85
T076101C	0.90
T076101D	0.86
T076101E	0.88
T076101F	0.90
T076101G	0.96
T076101H	0.97
T076101I	0.94
T076101M	0.88
T076102A	0.87
T076102X	0.86
SOURCE: U.S. Department of Education, Institute of Education Sciences, National Center for Education Statistics, National Assessment of Educational Progress (NAEP), 2000 Science Assessment.

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