What follows is the SPSS output from the item analysis of questionnaire 3495. The response-frequency analysis of each item is followed by the distribution of total summed scores; after that the traditional item analysis statistics are presented.
01-Apr-96 SPSS Release 4.0 for Macintosh
S3495Q1
Valid Cum
Value Label Value Frequency Percent Percent Percent
1 2 8.7 8.7 8.7
3 3 13.0 13.0 21.7
4 15 65.2 65.2 87.0
5 3 13.0 13.0 100.0
------- ------- -------
Total 23 100.0 100.0
Mean 3.739 Std err .211 Median 4.000
Mode 4.000 Std dev 1.010 Variance 1.020
Kurtosis 3.502 S E Kurt .935 Skewness -1.742
S E Skew .481 Range 4.000 Minimum 1.000
Maximum 5.000 Sum 86.000
Valid cases 23 Missing cases 0
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
S3495Q2
Valid Cum
Value Label Value Frequency Percent Percent Percent
2 1 4.3 4.3 4.3
3 6 26.1 26.1 30.4
4 10 43.5 43.5 73.9
5 6 26.1 26.1 100.0
------- ------- -------
Total 23 100.0 100.0
Mean 3.913 Std err .177 Median 4.000
Mode 4.000 Std dev .848 Variance .719
Kurtosis -.463 S E Kurt .935 Skewness -.315
S E Skew .481 Range 3.000 Minimum 2.000
Maximum 5.000 Sum 90.000
Valid cases 23 Missing cases 0
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
S3495Q3
Valid Cum
Value Label Value Frequency Percent Percent Percent
1 1 4.3 4.3 4.3
2 5 21.7 21.7 26.1
3 10 43.5 43.5 69.6
4 6 26.1 26.1 95.7
5 1 4.3 4.3 100.0
------- ------- -------
Total 23 100.0 100.0
Mean 3.043 Std err .194 Median 3.000
Mode 3.000 Std dev .928 Variance .862
Kurtosis .006 S E Kurt .935 Skewness -.092
S E Skew .481 Range 4.000 Minimum 1.000
Maximum 5.000 Sum 70.000
Valid cases 23 Missing cases 0
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
S3495Q4
Valid Cum
Value Label Value Frequency Percent Percent Percent
1 2 8.7 8.7 8.7
2 3 13.0 13.0 21.7
3 6 26.1 26.1 47.8
4 8 34.8 34.8 82.6
5 4 17.4 17.4 100.0
------- ------- -------
Total 23 100.0 100.0
Mean 3.391 Std err .249 Median 4.000
Mode 4.000 Std dev 1.196 Variance 1.431
Kurtosis -.403 S E Kurt .935 Skewness -.504
S E Skew .481 Range 4.000 Minimum 1.000
Maximum 5.000 Sum 78.000
Valid cases 23 Missing cases 0
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
S3495Q5
Valid Cum
Value Label Value Frequency Percent Percent Percent
1 1 4.3 4.3 4.3
2 10 43.5 43.5 47.8
3 3 13.0 13.0 60.9
4 6 26.1 26.1 87.0
5 3 13.0 13.0 100.0
------- ------- -------
Total 23 100.0 100.0
Mean 3.000 Std err .251 Median 3.000
Mode 2.000 Std dev 1.206 Variance 1.455
Kurtosis -1.198 S E Kurt .935 Skewness .341
S E Skew .481 Range 4.000 Minimum 1.000
Maximum 5.000 Sum 69.000
Valid cases 23 Missing cases 0
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
SC3495
Valid Cum
Value Label Value Frequency Percent Percent Percent
10.00 1 4.3 4.3 4.3
11.00 1 4.3 4.3 8.7
12.00 1 4.3 4.3 13.0
13.00 2 8.7 8.7 21.7
14.00 2 8.7 8.7 30.4
15.00 1 4.3 4.3 34.8
16.00 1 4.3 4.3 39.1
17.00 4 17.4 17.4 56.5
18.00 1 4.3 4.3 60.9
19.00 3 13.0 13.0 73.9
20.00 2 8.7 8.7 82.6
22.00 1 4.3 4.3 87.0
23.00 2 8.7 8.7 95.7
24.00 1 4.3 4.3 100.0
------- ------- -------
Total 23 100.0 100.0
Mean 17.087 Std err .822 Median 17.000
Mode 17.000 Std dev 3.942 Variance 15.538
Kurtosis -.779 S E Kurt .935 Skewness .012
S E Skew .481 Range 14.000 Minimum 10.000
Maximum 24.000 Sum 393.000
Valid cases 23 Missing cases 0
-> RELIABILITY VARIABLES=S3495q1 TO S3495q5/
-> STATISTICS = DESCRIPTIVES CORRELATIONS/
-> SUMMARY = CORRELATIONS TOTAL.
R E L I A B I L I T Y A N A L Y S I S - S C A L E (A L L)
1. S3495Q1
2. S3495Q2
3. S3495Q3
4. S3495Q4
5. S3495Q5
MEAN STD DEV CASES
1. S3495Q1 3.7391 1.0098 23.0
2. S3495Q2 3.9130 .8482 23.0
3. S3495Q3 3.0435 .9283 23.0
4. S3495Q4 3.3913 1.1962 23.0
5. S3495Q5 3.0000 1.2060 23.0
CORRELATION MATRIX
S3495Q1 S3495Q2 S3495Q3 S3495Q4 S3495Q5
S3495Q1 1.0000
S3495Q2 .2377 1.0000
S3495Q3 .1096 .6401 1.0000
S3495Q4 .1260 .7519 .6799 1.0000
S3495Q5 .0746 .7554 .5278 .7562 1.0000
# OF CASES = 23.0
INTER-ITEM
CORRELATIONS MEAN MINIMUM MAXIMUM RANGE MAX/MIN VARIANCE
.4659 .0746 .7562 .6815 10.1306 .0818
ITEM-TOTAL STATISTICS
SCALE SCALE CORRECTED
MEAN VARIANCE ITEM- SQUARED ALPHA
IF ITEM IF ITEM TOTAL MULTIPLE IF ITEM
DELETED DELETED CORRELATION CORRELATION DELETED
S3495Q1 13.3478 13.4190 .1485 .0839 .8895
S3495Q2 13.1739 10.3320 .8228 .6968 .7182
S3495Q3 14.0435 10.7708 .6409 .5064 .7609
S3495Q4 13.6957 8.5850 .7877 .7027 .7035
S3495Q5 14.0870 8.9921 .7038 .6631 .7355
R E L I A B I L I T Y A N A L Y S I S - S C A L E (A L L)
RELIABILITY COEFFICIENTS 5 ITEMS
ALPHA = .8086 STANDARDIZED ITEM ALPHA = .8135