==============================================================================================================
ConQuest: Generalised Item Response Modelling Software     Tue Nov 10 09:36 2020
GENERALISED ITEM ANALYSIS
Group All Students
==============================================================================================================
Item 1
------
item:1 (BSMMA01)
Cases for this item    1000   Item-Rest Cor.  0.46   Item-Total Cor.  0.61
Item Threshold(s):     0.36   Weighted MNSQ   0.91
Item Delta(s):         0.36
------------------------------------------------------------------------------
 Label    Score     Count   % of tot  Pt Bis      t  (p)   PV1Avg:1 PV1 SD:1
------------------------------------------------------------------------------
   M       0.00        6       0.60   -0.11     -3.4(.001) -0.205   0.981
   a       1.00      645      64.50    0.46     16.1(.000)  1.401   0.831
   b       0.00       23       2.30   -0.08     -2.6(.007)  0.662   0.761
   c       0.00       47       4.70   -0.20     -6.4(.000)  0.314   0.803
   d       0.00      104      10.40   -0.24     -7.7(.000)  0.423   0.78
   e       0.00      175      17.50   -0.22     -6.9(.000)  0.602   0.795
==============================================================================
Item 2
------
item:2 (BSMMA02)
Cases for this item    1000   Item-Rest Cor.  0.31   Item-Total Cor.  0.47
Item Threshold(s):    -0.18   Weighted MNSQ   0.98
Item Delta(s):        -0.18
------------------------------------------------------------------------------
 Label    Score     Count   % of tot  Pt Bis      t  (p)   PV1Avg:1 PV1 SD:1
------------------------------------------------------------------------------
   M       0.00        5       0.50   -0.08     -2.5(.012)  0.187   1.302
   a       0.00       59       5.90   -0.17     -5.3(.000)  0.532   0.897
   b       0.00      152      15.20   -0.19     -6.2(.000)  0.59    0.841
   c       1.00      743      74.30    0.31     10.1(.000)  1.266   0.871
   d       0.00       41       4.10   -0.10     -3.1(.002)  0.457   0.933
==============================================================================
Item 3
------
item:3 (BSMMA03)
Cases for this item    1000   Item-Rest Cor.  0.41   Item-Total Cor.  0.56
Item Threshold(s):    -0.02   Weighted MNSQ   0.94
Item Delta(s):        -0.02
------------------------------------------------------------------------------
 Label    Score     Count   % of tot  Pt Bis      t  (p)   PV1Avg:1 PV1 SD:1
------------------------------------------------------------------------------
   M       0.00        9       0.90   -0.11     -3.4(.001)  0.067   1.096
   a       0.00      117      11.70   -0.26     -8.6(.000)  0.543   0.791
   b       0.00      119      11.90   -0.21     -6.6(.000)  0.527   0.827
   c       0.00       38       3.80   -0.11     -3.5(.000)  0.47    0.88
   d       1.00      717      71.70    0.41     14.0(.000)  1.307   0.865
==============================================================================
Item 4
------
item:4 (BSMMA04)
Cases for this item    1000   Item-Rest Cor.  0.34   Item-Total Cor.  0.52
Item Threshold(s):     0.84   Weighted MNSQ   0.98
Item Delta(s):         0.84
------------------------------------------------------------------------------
 Label    Score     Count   % of tot  Pt Bis      t  (p)   PV1Avg:1 PV1 SD:1
------------------------------------------------------------------------------
   M       0.00        3       0.30   -0.07     -2.3(.022) -0.132   1.47
   a       0.00      151      15.10    0.06      1.7(.078)  0.953   0.819
   b       0.00       73       7.30   -0.20     -6.4(.000)  0.467   0.871
   c       0.00      224      22.40   -0.32    -10.6(.000)  0.514   0.793
   d       1.00      549      54.90    0.34     11.3(.000)  1.437   0.835
==============================================================================
Item 5
------
item:5 (BSMMA05)
Cases for this item    1000   Item-Rest Cor.  0.18   Item-Total Cor.  0.38
Item Threshold(s):     1.18   Weighted MNSQ   1.08
Item Delta(s):         1.18
------------------------------------------------------------------------------
 Label    Score     Count   % of tot  Pt Bis      t  (p)   PV1Avg:1 PV1 SD:1
------------------------------------------------------------------------------
   M       0.00       34       3.40   -0.10     -3.3(.001)  0.651   0.95
   a       0.00      102      10.20   -0.04     -1.1(.265)  0.871   0.967
   b       1.00      477      47.70    0.18      5.9(.000)  1.371   0.892
   c       0.00      226      22.60   -0.12     -3.7(.000)  0.804   0.86
   d       0.00      161      16.10   -0.03     -1.1(.272)  0.839   0.833
==============================================================================
Item 6
------
item:6 (BSMMA06)
Cases for this item    1000   Item-Rest Cor.  0.28   Item-Total Cor.  0.44
Item Threshold(s):    -0.31   Weighted MNSQ   1.01
Item Delta(s):        -0.31
------------------------------------------------------------------------------
 Label    Score     Count   % of tot  Pt Bis      t  (p)   PV1Avg:1 PV1 SD:1
------------------------------------------------------------------------------
   M       0.00       13       1.30   -0.11     -3.4(.001)  0.229   0.876
   a       0.00       21       2.10   -0.05     -1.6(.092)  0.612   0.881
   b       0.00       44       4.40   -0.07     -2.3(.021)  0.49    0.737
   c       1.00      765      76.50    0.28      9.3(.000)  1.264   0.866
   d       0.00       85       8.50   -0.18     -5.8(.000)  0.387   0.918
   e       0.00       72       7.20   -0.14     -4.3(.000)  0.613   0.871
==============================================================================
Item 7
------
item:7 (BSMSA07)
Cases for this item    1000   Item-Rest Cor.  0.22   Item-Total Cor.  0.38
Item Threshold(s):    -0.39   Weighted MNSQ   1.04
Item Delta(s):        -0.39
------------------------------------------------------------------------------
 Label    Score     Count   % of tot  Pt Bis      t  (p)   PV1Avg:1 PV1 SD:1
------------------------------------------------------------------------------
   M       0.00       18       1.80   -0.03     -1.0(.301)  0.635   0.829
   a       0.00       17       1.70   -0.07     -2.2(.022)  0.309   0.751
   b       0.00       41       4.10   -0.09     -2.7(.006)  0.486   0.986
   c       0.00       41       4.10   -0.17     -5.3(.000)  0.422   0.932
   d       0.00      106      10.60   -0.09     -2.8(.004)  0.669   0.878
   e       1.00      777      77.70    0.22      7.1(.000)  1.231   0.88
==============================================================================
Item 8
------
item:8 (BSMSA08)
Cases for this item    1000   Item-Rest Cor.  0.15   Item-Total Cor.  0.32
Item Threshold(s):    -0.33   Weighted MNSQ   1.09
Item Delta(s):        -0.33
------------------------------------------------------------------------------
 Label    Score     Count   % of tot  Pt Bis      t  (p)   PV1Avg:1 PV1 SD:1
------------------------------------------------------------------------------
   M       0.00        2       0.20   -0.07     -2.2(.024) -0.139   2.252
   a       0.00       67       6.70   -0.07     -2.2(.024)  0.579   0.819
   b       1.00      767      76.70    0.15      4.6(.000)  1.212   0.899
   c       0.00       48       4.80   -0.07     -2.1(.033)  0.747   0.972
   d       0.00      116      11.60   -0.08     -2.5(.010)  0.668   0.867
==============================================================================
Item 9
------
item:9 (BSMSA09)
Cases for this item    1000   Item-Rest Cor.  0.29   Item-Total Cor.  0.43
Item Threshold(s):    -0.97   Weighted MNSQ   0.97
Item Delta(s):        -0.97
------------------------------------------------------------------------------
 Label    Score     Count   % of tot  Pt Bis      t  (p)   PV1Avg:1 PV1 SD:1
------------------------------------------------------------------------------
   M       0.00        5       0.50   -0.08     -2.5(.011)  0.373   1.231
   a       0.00       24       2.40   -0.18     -5.9(.000)  0.201   0.696
   b       1.00      853      85.30    0.29      9.6(.000)  1.209   0.875
   c       0.00       19       1.90   -0.15     -4.7(.000)  0.163   0.861
   d       0.00       99       9.90   -0.17     -5.3(.000)  0.412   0.897
==============================================================================
Item 10
-------
item:10 (BSMSA10)
Cases for this item    1000   Item-Rest Cor.  0.19   Item-Total Cor.  0.35
Item Threshold(s):    -0.39   Weighted MNSQ   1.06
Item Delta(s):        -0.39
------------------------------------------------------------------------------
 Label    Score     Count   % of tot  Pt Bis      t  (p)   PV1Avg:1 PV1 SD:1
------------------------------------------------------------------------------
   M       0.00        8       0.80   -0.09     -2.8(.004) -0.086   0.942
   a       1.00      777      77.70    0.19      6.1(.000)  1.218   0.887
   b       0.00       70       7.00   -0.02     -0.7(.438)  0.704   1.044
   c       0.00       57       5.70   -0.14     -4.5(.000)  0.434   0.76
   d       0.00       88       8.80   -0.11     -3.5(.000)  0.7     0.835
==============================================================================
Item 11
-------
item:11 (BSMSA11)
Cases for this item    1000   Item-Rest Cor.  0.33   Item-Total Cor.  0.48
Item Threshold(s):    -0.50   Weighted MNSQ   0.98
Item Delta(s):        -0.50
------------------------------------------------------------------------------
 Label    Score     Count   % of tot  Pt Bis      t  (p)   PV1Avg:1 PV1 SD:1
------------------------------------------------------------------------------
   M       0.00       12       1.20   -0.13     -4.2(.000) -0.008   0.788
   a       0.00      108      10.80   -0.15     -4.9(.000)  0.496   0.758
   b       0.00       54       5.40   -0.19     -5.9(.000)  0.28    0.753
   c       1.00      793      79.30    0.33     11.1(.000)  1.264   0.876
   d       0.00       33       3.30   -0.17     -5.4(.000)  0.311   0.782
==============================================================================
Item 12
-------
item:12 (BSMSA12)
Cases for this item    1000   Item-Rest Cor.  0.30   Item-Total Cor.  0.48
Item Threshold(s):     0.71   Weighted MNSQ   1.01
Item Delta(s):         0.71
------------------------------------------------------------------------------
 Label    Score     Count   % of tot  Pt Bis      t  (p)   PV1Avg:1 PV1 SD:1
------------------------------------------------------------------------------
   M       0.00       13       1.30   -0.09     -2.8(.005)  0.371   0.91
   a       0.00       68       6.80   -0.07     -2.2(.024)  0.82    0.935
   b       0.00      199      19.90   -0.25     -8.0(.000)  0.626   0.825
   c       1.00      576      57.60    0.30      9.9(.000)  1.367   0.859
   d       0.00      144      14.40   -0.06     -2.0(.040)  0.755   0.896
==============================================================================
The following traditional statistics are only meaningful for complete
designs and when the amount of missing data is minimal.
In this analysis  0.00%  of the data are missing.

The following results are scaled to assume that a single response
was provided for each item.

N                               1000
Mean                            8.44
Standard Deviation              2.40
Variance                        5.78
Skewness                       -0.60
Kurtosis                       -0.19
Standard error of mean          0.08
Standard error of measurement   1.43
Coefficient Alpha               0.64
==============================================================================
