Add results/h2_results.json
Browse files- results/h2_results.json +98 -0
results/h2_results.json
ADDED
|
@@ -0,0 +1,98 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1 |
+
{
|
| 2 |
+
"variance_ratio_test": {
|
| 3 |
+
"NAEP Reading": {
|
| 4 |
+
"n_items": 229,
|
| 5 |
+
"mean_delta": -0.16679436553998975,
|
| 6 |
+
"observed_variance": 0.04563447545763938,
|
| 7 |
+
"expected_variance": 0.07679249383555595,
|
| 8 |
+
"variance_ratio": 0.5942569797949446,
|
| 9 |
+
"chi2_statistic": 135.49059139324737,
|
| 10 |
+
"chi2_pvalue": 0.9999998126957306,
|
| 11 |
+
"large_dif_items": 11,
|
| 12 |
+
"pct_large_dif": 4.8034934497816595,
|
| 13 |
+
"interpretation": "global_shift"
|
| 14 |
+
},
|
| 15 |
+
"NAEP Science": {
|
| 16 |
+
"n_items": 110,
|
| 17 |
+
"mean_delta": 0.17350524387110933,
|
| 18 |
+
"observed_variance": 0.05456748010024568,
|
| 19 |
+
"expected_variance": 0.06359174660413647,
|
| 20 |
+
"variance_ratio": 0.8580906015985448,
|
| 21 |
+
"chi2_statistic": 93.53187557424138,
|
| 22 |
+
"chi2_pvalue": 0.8545195813169604,
|
| 23 |
+
"large_dif_items": 9,
|
| 24 |
+
"pct_large_dif": 8.181818181818182,
|
| 25 |
+
"interpretation": "global_shift"
|
| 26 |
+
},
|
| 27 |
+
"NAEP Math": {
|
| 28 |
+
"n_items": 506,
|
| 29 |
+
"mean_delta": 0.07645504976016303,
|
| 30 |
+
"observed_variance": 0.04672505017427217,
|
| 31 |
+
"expected_variance": 0.07214261031126701,
|
| 32 |
+
"variance_ratio": 0.6476761787890949,
|
| 33 |
+
"chi2_statistic": 327.07647028849294,
|
| 34 |
+
"chi2_pvalue": 0.9999999999295783,
|
| 35 |
+
"large_dif_items": 16,
|
| 36 |
+
"pct_large_dif": 3.1620553359683794,
|
| 37 |
+
"interpretation": "global_shift"
|
| 38 |
+
},
|
| 39 |
+
"EEDI Set 1": {
|
| 40 |
+
"n_items": 553,
|
| 41 |
+
"mean_delta": -0.08261931695211568,
|
| 42 |
+
"observed_variance": 1.5390512817770314,
|
| 43 |
+
"expected_variance": 2.8726799346328216,
|
| 44 |
+
"variance_ratio": 0.5357545277572835,
|
| 45 |
+
"chi2_statistic": 295.7364993220205,
|
| 46 |
+
"chi2_pvalue": 1.0,
|
| 47 |
+
"large_dif_items": 84,
|
| 48 |
+
"pct_large_dif": 15.18987341772152,
|
| 49 |
+
"interpretation": "global_shift"
|
| 50 |
+
},
|
| 51 |
+
"EEDI Set 2": {
|
| 52 |
+
"n_items": 50,
|
| 53 |
+
"mean_delta": 0.03686753510653126,
|
| 54 |
+
"observed_variance": 0.1431835125519314,
|
| 55 |
+
"expected_variance": 0.12536339102401672,
|
| 56 |
+
"variance_ratio": 1.1421477305483922,
|
| 57 |
+
"chi2_statistic": 55.965238796871226,
|
| 58 |
+
"chi2_pvalue": 0.22982539398227708,
|
| 59 |
+
"large_dif_items": 11,
|
| 60 |
+
"pct_large_dif": 22.0,
|
| 61 |
+
"interpretation": "global_shift"
|
| 62 |
+
}
|
| 63 |
+
},
|
| 64 |
+
"irt_comparison": {
|
| 65 |
+
"EEDI Set 1": {
|
| 66 |
+
"theta_female": -0.005556574746921584,
|
| 67 |
+
"theta_male": -0.08817589169903724,
|
| 68 |
+
"theta_shift": -0.08261931695211565,
|
| 69 |
+
"ll_constrained": -285332.606589471,
|
| 70 |
+
"ll_unconstrained": -284846.8552282013,
|
| 71 |
+
"lr_statistic": 971.5027225393569,
|
| 72 |
+
"lr_df": 551,
|
| 73 |
+
"lr_pvalue": 0.0,
|
| 74 |
+
"aic_constrained": 571775.213178942,
|
| 75 |
+
"aic_unconstrained": 571905.7104564026,
|
| 76 |
+
"bic_constrained": 577880.6152304973,
|
| 77 |
+
"bic_unconstrained": 584072.5116618444,
|
| 78 |
+
"n_items": 553,
|
| 79 |
+
"n_obs": 442734
|
| 80 |
+
},
|
| 81 |
+
"EEDI Set 2": {
|
| 82 |
+
"theta_female": 0.24179433752863935,
|
| 83 |
+
"theta_male": 0.2786618726351706,
|
| 84 |
+
"theta_shift": 0.03686753510653126,
|
| 85 |
+
"ll_constrained": -4831.122400546937,
|
| 86 |
+
"ll_unconstrained": -4747.424878153612,
|
| 87 |
+
"lr_statistic": 167.39504478665003,
|
| 88 |
+
"lr_df": 48,
|
| 89 |
+
"lr_pvalue": 3.9968028886505635e-15,
|
| 90 |
+
"aic_constrained": 9766.244801093873,
|
| 91 |
+
"aic_unconstrained": 9694.849756307223,
|
| 92 |
+
"bic_constrained": 10126.223032669142,
|
| 93 |
+
"bic_unconstrained": 10387.115586259664,
|
| 94 |
+
"n_items": 50,
|
| 95 |
+
"n_obs": 7500
|
| 96 |
+
}
|
| 97 |
+
}
|
| 98 |
+
}
|