; 1996 State Naep grade 8 math IRT Paramters (3 parameter items only) 
; http://nces.ed.gov/nationsreportcard/96report/97951.pdf
; 139  items    reliability (assuming N(0,1)) = .958
; Mean a, b, c:  0.939  0.035  0.124
; a, b, c
.625,-1.483,.21
.855,-.334,.115
.813,.56,.13
1.06,.917,.226
1.006,.006,.156
.939,1.134,.104
1.663,.649,.078
.274,-4.65,.231
1.001,-1.046,.147
1.203,-.897,.146
.599,-.537,.131
1.142,-.644,.315
2.375,.537,.245
.683,1.004,.138
.595,-.389,0
1.331,-.496,0
.82,-.367,0
.418,-2.49,0
.943,-1.058,.197
.917,-.184,.312
.574,-1.204,0
.881,-1.537,0
.684,-.443,.136
1.333,-.299,.092
.979,.333,.127
1.263,1.154,.182
.514,-1.475,0
.915,1.524,.198
.839,-.628,0
1.706,.638,.065
.939,.88,0
.754,.036,0
.931,1.042,0
.771,.076,.271
.751,-1.334,.211
1.405,.91,.191
.621,-.388,.138
.775,1.342,0
1.192,.001,.169
1.071,1.003,.396
2.01,1.489,.171
.845,1.005,.471
.549,1.187,.167
.681,-2.021,.224
.75,-1.56,.208
.885,-1.31,.2
.349,-3.192,.159
.571,-.546,.121
1.344,1.767,.186
1.494,1.623,.156
1.066,-.491,0
1.048,.149,.113
.767,-.935,.132
1.074,1.537,0
.972,.683,.383
.978,1.159,0
.432,-2.49,0
1.146,.822,.19
.892,.786,0
.84,2.23,0
1.076,-.925,.151
.907,1.23,.088
.592,.248,.225
1.323,1.381,.244
.565,-.33,.237
.627,1.737,.177
1.09,.531,.135
.51,-1.602,.262
.766,-.239,.255
.758,.722,.145
.724,1.385,.128
.781,-.873,0
.635,-1.779,0
.611,.455,0
.83,.004,0
1.429,-.35,0
1.39,-.457,0
.664,-2.3,.265
1.064,-.585,.209
.929,-.847,.272
1.191,.055,.258
1.515,1.419,.111
.52,1.578,0
1.262,1.604,.259
1.132,1.312,.195
.624,.459,.154
.624,-1.467,0
1.323,-1.276,0
1.273,-1.586,0
.96,.031,0
.592,.34,.119
.338,1.758,0
1.689,.515,.244
1.11,1.317,0
.927,1.251,0
.967,-.689,.194
.728,1.766,.186
.432,-2.676,0
.768,1.712,0
1.026,-.09,0
1.064,-.929,0
1.11,-.019,.146
1.092,-1.805,0
1.205,.714,.109
.805,-.221,.212
1.026,-.985,.113
1.03,.467,.175
.378,4.864,.17
.453,-.432,0
.846,-.165,.14
.141,3.46,0
.486,-3.718,.162
1.006,1.578,.139
1.116,1.287,.142
.977,-.673,.108
1.351,.138,.256
.808,.467,.202
1.143,1.114,.182
.545,-1.762,0
.629,-.447,0
.91,.265,0
1.337,.28,.069
1.199,1.569,.258
1.165,.501,.096
1.318,-.011,.128
.837,-.162,0
1.31,.447,.177
.929,.351,0
1.13,1.015,.163
.938,-1.341,.128
.636,-2.127,0
1.035,.561,.285
2.041,.99,.471
1.106,.619,.147
.755,1.262,.108
.76,-1.403,.193
.836,-.711,.14
.601,1.159,0
1.275,.197,.148