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@Zhomart
Created July 3, 2014 08:42
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Fluency Raw
$ ruby cronbach.rb
-- (227)
MapIt: f797294d: [10, 6, 6, 4, 6, 7, 6, 3, 6, 6, 7, 8, 5, 9, 6, 6, 12, 6, 6, 5, 6] ...
MapIt: bfe2bc45: [6, 9, 5, 6, 6, 26, 6, 6, 5, 6, 6, 4, 5, 3, 6, 5, 8, 6, 6, 6, 3] ...
MapIt: 4e4006af: [6, 3, 6, 6, 6, 27, 6, 5, 5, 6, 6, 4, 5, 3, 6, 8, 11, 3, 6, 5, 4] ...
Analysis 2014-07-03 01:41:39 -0700
= Statsample::Reliability
== Reliability Analisis
Summary for Reliability Analisis
+------------------------------+---------+
| Valid Items | 3 |
| Valid cases | 136 |
| Sum mean | 22.0441 |
| Sum sd | 9.5000 |
| Sum median | 18.0 |
+------------------------------+---------+
| Item mean | 7.3480 |
| Item sd | 3.1667 |
+------------------------------+---------+
| Skewness | 2.4946 |
| Kurtosis | 6.9114 |
+------------------------------+---------+
| Cronbach's alpha | 0.8133 |
| Standarized Cronbach's alpha | 0.8076 |
| Mean rpb | 0.6870 |
| Variances mean | 13.7719 |
| Covariances mean | 8.15568 |
+------------------------------+---------+
Items for obtain alpha(0.8) : 2
Items for obtain alpha(0.9) : 6
Items report for Reliability Analisis
+---------------------------+---------+---------+-----------------+----------------+---------------+---------------------+------------------+
| item | mean | sd | mean if deleted | var if deleted | sd if deleted | item-total correl. | alpha if deleted |
+---------------------------+---------+---------+-----------------+----------------+---------------+---------------------+------------------+
| Vector 1(MapIt: f797294d) | 7.24265 | 2.84018 | 14.80147 | 60.96029 | 7.80771 | 0.47853 | 0.90915 |
| Vector 2(MapIt: bfe2bc45) | 7.50000 | 4.10781 | 14.54412 | 34.38322 | 5.86372 | 0.80941 | 0.57828 |
| Vector 3(MapIt: 4e4006af) | 7.30147 | 4.04662 | 14.74265 | 36.22217 | 6.01849 | 0.77301 | 0.62290 |
+---------------------------+---------+---------+-----------------+----------------+---------------+---------------------+------------------+
0.00 :
6.36 : **
12.73 : **************************************
19.09 : **************
25.45 : ******
31.82 : **
38.18 : *
44.55 : *
50.91 :
57.27 : *
63.64 :
== Intra-class correlation
McGraw & Wong ICC(1)
ICC: 0.5934
F Test : F(135, 272) = 5.3786 , p = 0.0000
CI (95.00): [0.5035 - 0.6761]
== Intra-class correlation
Shrout & Fleiss ICC(2,1)
ICC: 0.5932
F Test : F(135, 270) = 5.3565 , p = 0.0000
CI (95.00): [0.5031 - 0.6760]
== Intra-class correlation
Shrout & Fleiss ICC(3,1)
ICC: 0.5922
F Test : F(135, 270) = 5.3565 , p = 0.0000
CI (95.00): [0.5020 - 0.6751]
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