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Author's title

Author

*The author of this computation has been verified*

R Software Module

rwasp_cronbach.wasp

Title produced by software

Cronbach Alpha

Date of computation

Thu, 09 Dec 2010 11:49:33 +0000

Cite this page as follows

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2010/Dec/09/t129189532901hrf4ji81gk919.htm/, Retrieved Mon, 29 Apr 2024 03:12:39 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=107175, Retrieved Mon, 29 Apr 2024 03:12:39 +0000

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IsPrivate?

No (this computation is public)

User-defined keywords

Estimated Impact

195

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)

-     [Cronbach Alpha] [Intrinsic Motivat...] [2010-10-12 11:40:37] [b98453cac15ba1066b407e146608df68]
-    D  [Cronbach Alpha] [Cronback Extrinsi...] [2010-10-16 12:52:22] [74be16979710d4c4e7c6647856088456]
-         [Cronbach Alpha] [Cronbach extrinsi...] [2010-10-17 11:05:35] [65eb19f81eab2b6e672eafaed2a27190]
- R  D        [Cronbach Alpha] [Cronbach Non-Verbal] [2010-12-09 11:49:33] [e192c8164fa91adb027f71579ac0a49a] [Current]

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Dataseries X:

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Histogram

Boxplots

5	1	6	5	7	2	2	6	7	6	6	5	7	1	7
2	1	6	2	3	5	6	5	3	6	4	5	5	1	4
6	3	6	6	3	5	6	7	5	6	1	1	7	1	5
6	3	2	6	2	6	3	5	3	6	2	2	6	4	6
6	2	5	3	2	6	6	6	5	5	5	4	4	2	4
6	4	6	5	5	6	6	5	5	5	6	5	6	5	6
5	4	7	4	1	3	6	3	5	6	7	7	5	5	5
5	1	7	1	6	4	3	6	6	5	4	2	6	1	7
5	2	4	6	1	5	4	5	5	6	5	5	5	4	6
6	1	1	6	1	6	1	6	2	5	1	1	6	2	6
5	3	6	6	2	5	5	4	5	4	5	5	6	3	4
5	2	4	4	1	4	5	5	4	6	1	4	7	4	5
6	2	5	5	2	6	6	5	5	6	5	2	6	2	6
4	5	6	3	2	6	6	5	6	5	6	6	5	4	4
5	4	4	5	2	4	2	6	5	4	2	4	5	4	5
5	2	6	4	2	5	6	6	2	4	5	2	6	2	5
5	2	3	5	2	3	6	6	3	7	2	5	6	2	6
6	5	3	6	2	2	4	6	5	4	5	5	6	4	6
5	1	5	3	1	3	1	3	6	5	2	2	4	1	5
7	4	5	4	3	5	1	5	5	6	4	6	5	2	4
6	1	5	5	2	3	1	6	4	6	5	4	5	1	4
6	3	5	4	3	5	2	6	5	6	2	4	4	3	5
6	2	5	5	4	5	6	5	5	6	5	2	5	3	5
6	2	2	6	5	4	3	5	5	2	1	1	6	5	6
4	1	6	7	2	5	3	3	5	2	6	5	4	2	4
5	3	7	2	5	5	2	6	6	4	6	2	4	2	4
6	4	2	4	5	3	2	6	6	4	4	2	7	5	5
4	3	3	6	1	5	2	5	6	6	5	4	6	2	7
5	5	6	5	6	6	4	3	6	3	5	4	5	3	5
5	2	5	5	3	4	1	5	4	6	4	3	5	3	5
7	5	6	6	5	7	6	7	5	2	6	5	7	2	5
7	2	5	6	6	6	4	6	3	6	2	4	4	2	4
5	1	7	5	4	5	1	7	4	7	4	2	6	4	4
6	1	5	1	5	2	1	6	6	7	5	2	7	3	5
7	3	3	4	3	5	2	5	4	6	3	3	6	4	5
6	2	7	2	3	6	6	5	6	5	6	2	6	6	5
5	3	5	3	5	6	1	4	3	2	1	3	5	4	5
6	2	5	4	2	3	3	5	2	6	4	4	5	2	6
4	2	6	5	2	6	5	5	5	5	3	2	4	4	6
6	3	2	4	3	5	6	2	5	4	5	5	6	1	6
6	3	6	4	4	6	4	4	4	3	5	4	3	2	6
6	2	7	6	5	7	7	6	3	2	2	3	5	6	6
5	1	5	4	2	7	4	3	3	2	NA	5	5	2	6
6	6	4	5	2	5	5	6	4	6	6	3	6	6	6
5	6	6	4	5	6	6	5	5	4	5	3	6	5	3
5	3	7	5	6	3	5	2	4	5	5	3	5	1	4
5	5	2	6	6	7	6	6	3	6	5	2	6	2	6
6	4	2	6	5	4	2	7	4	6	3	2	6	4	6
6	3	2	4	4	5	3	3	4	6	6	5	6	6	5
5	2	5	4	3	6	5	5	4	5	6	4	5	2	5
7	7	2	6	7	1	7	2	3	3	5	1	6	1	4
6	2	5	4	7	2	2	6	6	6	6	5	6	2	6
5	2	2	6	2	2	3	6	5	6	4	3	6	5	6
6	2	4	5	6	6	5	6	6	6	4	3	6	3	7
5	3	6	6	6	6	3	6	6	6	5	5	5	4	5
5	5	4	6	4	2	2	4	4	6	3	4	6	2	5
6	2	3	5	5	5	6	6	5	6	6	3	6	4	6
6	5	3	5	2	5	4	6	4	6	2	4	5	5	5
3	2	3	5	6	6	4	3	6	3	2	2	6	1	4
5	1	6	5	3	6	NA	5	5	3	3	4	6	3	5
5	3	6	3	2	5	3	6	5	2	2	5	6	1	4
6	4	5	4	2	5	3	6	5	6	3	3	5	3	5
5	2	3	1	5	2	1	5	5	1	1	5	5	2	6
5	4	3	5	3	3	4	6	2	6	2	5	5	3	5
4	4	2	2	4	6	4	6	5	3	6	3	5	6	6
5	3	3	6	5	7	4	6	5	4	1	2	6	1	6
5	2	3	5	7	7	6	6	5	2	2	2	6	2	5
2	1	5	2	2	4	4	6	2	6	2	1	4	1	4
6	2	5	5	6	6	2	4	4	4	6	6	5	2	2
6	5	3	6	5	7	3	6	6	6	5	5	6	6	6
6	4	2	6	4	5	5	6	4	6	4	5	6	5	4
6	4	5	3	3	5	6	5	6	5	2	2	6	2	5
5	4	6	4	6	7	3	6	6	5	5	4	5	3	5
6	2	5	4	2	2	4	6	2	6	3	4	4	4	5
5	2	6	4	5	5	4	6	4	6	5	3	5	3	6
5	2	2	4	5	3	2	6	4	6	4	1	5	4	5
5	2	6	5	3	5	5	4	5	5	5	6	6	4	5
6	3	7	2	6	7	1	5	7	6	5	5	6	6	7
3	5	5	3	5	6	6	5	7	4	5	1	6	1	6
6	1	5	5	1	6	2	5	5	6	5	3	5	5	6
3	2	2	6	5	4	4	5	5	4	5	5	5	2	5
5	2	5	5	2	6	7	6	5	5	5	3	5	3	5
6	5	5	3	4	5	2	5	6	3	4	3	5	3	4
5	2	5	4	2	6	6	3	5	6	2	5	5	2	4
6	1	4	4	3	6	2	7	4	6	2	3	7	2	4
6	2	5	3	5	5	5	5	6	5	4	2	6	2	4
6	1	4	4	6	4	2	6	4	6	4	2	6	4	5
5	2	3	4	4	6	2	6	4	4	2	2	6	2	4
3	1	5	2	5	6	1	6	5	2	2	3	6	3	6
4	1	2	6	1	4	1	7	2	6	2	2	4	2	4
7	6	2	3	6	6	6	7	5	6	6	2	6	2	4
6	1	4	5	2	6	7	7	5	6	2	5	5	1	7
6	2	3	5	3	4	1	6	5	6	4	3	6	3	5
5	2	5	5	5	7	5	3	6	6	4	6	6	4	4
4	1	5	5	2	7	1	7	5	6	1	3	7	5	5
6	2	2	4	2	5	1	6	4	6	1	5	7	1	5
6	1	5	2	3	NA	4	6	5	7	6	2	4	2	4
6	1	2	5	2	5	5	6	5	5	1	2	5	5	5
5	3	6	3	6	4	3	3	5	3	4	5	4	3	4
6	5	2	6	3	6	6	6	5	6	6	2	6	2	5
6	2	1	6	2	5	2	7	4	NA	6	2	6	4	4
2	1	6	1	1	7	3	5	1	7	1	2	6	1	7
6	3	2	7	1	5	5	6	5	7	5	2	4	1	4
5	2	3	5	1	5	3	3	3	6	6	2	3	2	5
5	4	5	6	4	4	5	5	5	4	4	5	6	6	4
3	2	4	6	1	3	6	6	5	5	5	2	6	2	6
4	5	4	6	1	2	4	6	6	6	4	3	5	6	6
6	1	6	3	1	5	6	6	5	6	2	4	6	1	4
5	2	2	6	5	4	5	6	4	5	2	4	5	2	6
6	2	7	7	5	6	6	3	6	7	4	2	7	3	6
4	1	2	6	2	5	1	6	2	6	5	5	4	2	6
6	2	5	5	3	3	3	6	2	7	1	2	3	4	5
4	2	3	5	5	5	4	4	4	4	4	5	5	3	4
6	2	5	5	2	5	4	5	5	6	3	3	6	3	5
5	5	5	4	4	4	3	3	4	4	5	4	5	4	4
7	5	4	4	5	5	4	5	5	4	2	3	5	3	5
6	1	3	6	1	5	3	6	5	5	7	5	6	3	6
6	3	2	6	2	7	2	6	5	6	5	5	7	5	5
5	2	6	4	2	7	6	5	4	6	5	2	5	3	6
5	1	2	7	1	7	5	4	2	6	4	2	6	1	6
2	2	6	3	3	6	2	3	6	5	6	3	3	2	4
5	2	6	4	4	5	5	3	5	4	2	3	6	2	6
6	4	5	4	5	5	3	6	5	4	5	4	5	5	6
5	5	6	4	6	6	4	3	5	5	5	4	3	3	4
5	2	5	3	6	7	2	5	5	4	5	6	4	2	6
5	3	3	2	1	3	3	4	5	5	5	3	6	2	4
2	2	7	5	6	6	5	4	6	5	2	6	5	2	6
5	1	5	5	2	6	1	6	2	6	4	4	6	4	4
5	2	4	4	2	5	4	5	4	4	2	2	6	2	4
6	2	5	6	7	6	3	6	7	3	3	6	7	2	6
6	2	3	5	2	3	2	6	3	6	3	2	6	2	4
5	2	2	1	2	3	2	6	2	5	4	2	5	2	6
5	2	5	5	6	2	2	5	5	1	1	5	5	1	4
5	2	5	5	2	5	6	5	3	5	5	5	5	3	5
6	4	2	5	3	6	6	6	5	6	4	5	5	5	5
6	5	3	5	4	5	2	4	6	4	2	5	5	2	5
6	3	2	5	5	6	2	6	3	5	2	3	6	2	5
6	4	6	4	5	5	5	6	5	4	5	5	5	3	6
6	4	6	7	6	5	4	7	5	6	7	2	6	6	4
7	3	2	5	1	2	4	6	3	7	5	3	5	5	4
6	2	3	6	3	5	6	6	3	6	3	6	3	3	3
6	1	4	3	2	5	3	6	5	7	7	1	2	4	6
6	2	6	5	3	6	6	7	6	7	6	5	7	7	6
7	3	2	6	7	6	6	5	5	7	2	6	6	2	4
1	3	7	1	3	6	4	2	6	1	5	5	1	5	1
6	2	2	6	4	3	6	6	3	6	2	2	6	6	6

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	3 seconds
R Server	'Gwilym Jenkins' @ 72.249.127.135

\begin{tabular}{lllllllll}
\hline
Summary of computational transaction \tabularnewline
Raw Input & view raw input (R code)  \tabularnewline
Raw Output & view raw output of R engine  \tabularnewline
Computing time & 3 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ 72.249.127.135 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=107175&T=0

[TABLE]
[ROW][C]Summary of computational transaction[/C][/ROW]
[ROW][C]Raw Input[/C][C]view raw input (R code) [/C][/ROW]
[ROW][C]Raw Output[/C][C]view raw output of R engine [/C][/ROW]
[ROW][C]Computing time[/C][C]3 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Gwilym Jenkins' @ 72.249.127.135[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=107175&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=107175&T=0

As an alternative you can also use a QR Code:

The GUIDs for individual cells are displayed in the table below:

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	3 seconds
R Server	'Gwilym Jenkins' @ 72.249.127.135

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.4627	0.4765	0.567	0.0572
Q1 excluded	0.4301	0.4332	0.5279	0.0518
Q2 excluded	0.4219	0.4434	0.528	0.0538
Q3 excluded	0.4872	0.505	0.5739	0.0679
Q4 excluded	0.4493	0.4572	0.5446	0.0567
Q5 excluded	0.4508	0.4613	0.5471	0.0576
Q6 excluded	0.4471	0.4677	0.5608	0.0591
Q7 excluded	0.4275	0.4488	0.54	0.055
Q8 excluded	0.4746	0.481	0.5608	0.0621
Q9 excluded	0.4094	0.4285	0.5195	0.0508
Q10 excluded	0.4849	0.4894	0.565	0.0641
Q11 excluded	0.416	0.4436	0.5359	0.0539
Q12 excluded	0.4577	0.4792	0.5682	0.0617
Q13 excluded	0.4382	0.4377	0.5299	0.0527
Q14 excluded	0.4175	0.4321	0.5309	0.0515
Q15 excluded	0.4586	0.4696	0.5609	0.0595

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.4627 & 0.4765 & 0.567 & 0.0572 \tabularnewline
Q1 excluded & 0.4301 & 0.4332 & 0.5279 & 0.0518 \tabularnewline
Q2 excluded & 0.4219 & 0.4434 & 0.528 & 0.0538 \tabularnewline
Q3 excluded & 0.4872 & 0.505 & 0.5739 & 0.0679 \tabularnewline
Q4 excluded & 0.4493 & 0.4572 & 0.5446 & 0.0567 \tabularnewline
Q5 excluded & 0.4508 & 0.4613 & 0.5471 & 0.0576 \tabularnewline
Q6 excluded & 0.4471 & 0.4677 & 0.5608 & 0.0591 \tabularnewline
Q7 excluded & 0.4275 & 0.4488 & 0.54 & 0.055 \tabularnewline
Q8 excluded & 0.4746 & 0.481 & 0.5608 & 0.0621 \tabularnewline
Q9 excluded & 0.4094 & 0.4285 & 0.5195 & 0.0508 \tabularnewline
Q10 excluded & 0.4849 & 0.4894 & 0.565 & 0.0641 \tabularnewline
Q11 excluded & 0.416 & 0.4436 & 0.5359 & 0.0539 \tabularnewline
Q12 excluded & 0.4577 & 0.4792 & 0.5682 & 0.0617 \tabularnewline
Q13 excluded & 0.4382 & 0.4377 & 0.5299 & 0.0527 \tabularnewline
Q14 excluded & 0.4175 & 0.4321 & 0.5309 & 0.0515 \tabularnewline
Q15 excluded & 0.4586 & 0.4696 & 0.5609 & 0.0595 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=107175&T=1

[TABLE]
[ROW][C]Cronbach Alpha and Related Statistics[/C][/ROW]
[ROW][C]Items[/C][C]Cronbach Alpha[/C][C]Std. Alpha[/C][C]G6(smc)[/C][C]Average R[/C][/ROW]
[ROW][C]All itmes[/C][C]0.4627[/C][C]0.4765[/C][C]0.567[/C][C]0.0572[/C][/ROW]
[ROW][C]Q1 excluded[/C][C]0.4301[/C][C]0.4332[/C][C]0.5279[/C][C]0.0518[/C][/ROW]
[ROW][C]Q2 excluded[/C][C]0.4219[/C][C]0.4434[/C][C]0.528[/C][C]0.0538[/C][/ROW]
[ROW][C]Q3 excluded[/C][C]0.4872[/C][C]0.505[/C][C]0.5739[/C][C]0.0679[/C][/ROW]
[ROW][C]Q4 excluded[/C][C]0.4493[/C][C]0.4572[/C][C]0.5446[/C][C]0.0567[/C][/ROW]
[ROW][C]Q5 excluded[/C][C]0.4508[/C][C]0.4613[/C][C]0.5471[/C][C]0.0576[/C][/ROW]
[ROW][C]Q6 excluded[/C][C]0.4471[/C][C]0.4677[/C][C]0.5608[/C][C]0.0591[/C][/ROW]
[ROW][C]Q7 excluded[/C][C]0.4275[/C][C]0.4488[/C][C]0.54[/C][C]0.055[/C][/ROW]
[ROW][C]Q8 excluded[/C][C]0.4746[/C][C]0.481[/C][C]0.5608[/C][C]0.0621[/C][/ROW]
[ROW][C]Q9 excluded[/C][C]0.4094[/C][C]0.4285[/C][C]0.5195[/C][C]0.0508[/C][/ROW]
[ROW][C]Q10 excluded[/C][C]0.4849[/C][C]0.4894[/C][C]0.565[/C][C]0.0641[/C][/ROW]
[ROW][C]Q11 excluded[/C][C]0.416[/C][C]0.4436[/C][C]0.5359[/C][C]0.0539[/C][/ROW]
[ROW][C]Q12 excluded[/C][C]0.4577[/C][C]0.4792[/C][C]0.5682[/C][C]0.0617[/C][/ROW]
[ROW][C]Q13 excluded[/C][C]0.4382[/C][C]0.4377[/C][C]0.5299[/C][C]0.0527[/C][/ROW]
[ROW][C]Q14 excluded[/C][C]0.4175[/C][C]0.4321[/C][C]0.5309[/C][C]0.0515[/C][/ROW]
[ROW][C]Q15 excluded[/C][C]0.4586[/C][C]0.4696[/C][C]0.5609[/C][C]0.0595[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=107175&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=107175&T=1

As an alternative you can also use a QR Code:

The GUIDs for individual cells are displayed in the table below:

Cronbach Alpha and Related Statistics
Items	Cronbach Alpha	Std. Alpha	G6(smc)	Average R
All itmes	0.4627	0.4765	0.567	0.0572
Q1 excluded	0.4301	0.4332	0.5279	0.0518
Q2 excluded	0.4219	0.4434	0.528	0.0538
Q3 excluded	0.4872	0.505	0.5739	0.0679
Q4 excluded	0.4493	0.4572	0.5446	0.0567
Q5 excluded	0.4508	0.4613	0.5471	0.0576
Q6 excluded	0.4471	0.4677	0.5608	0.0591
Q7 excluded	0.4275	0.4488	0.54	0.055
Q8 excluded	0.4746	0.481	0.5608	0.0621
Q9 excluded	0.4094	0.4285	0.5195	0.0508
Q10 excluded	0.4849	0.4894	0.565	0.0641
Q11 excluded	0.416	0.4436	0.5359	0.0539
Q12 excluded	0.4577	0.4792	0.5682	0.0617
Q13 excluded	0.4382	0.4377	0.5299	0.0527
Q14 excluded	0.4175	0.4321	0.5309	0.0515
Q15 excluded	0.4586	0.4696	0.5609	0.0595

Parameters (Session):

Parameters (R input):

R code (references can be found in the software module):

library(psych)
z <- t(y)
(r <- alpha(z))
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Cronbach Alpha and Related Statistics',5,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Items',1,TRUE)
a<-table.element(a,'Cronbach Alpha',1,TRUE)
a<-table.element(a,'Std. Alpha',1,TRUE)
a<-table.element(a,'G6(smc)',1,TRUE)
a<-table.element(a,'Average R',1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'All itmes',header=TRUE)
a<-table.element(a,round(r$total['raw_alpha'],4))
a<-table.element(a,round(r$total['std.alpha'],4))
a<-table.element(a,round(r$total['G6(smc)'],4))
a<-table.element(a,round(r$total['average_r'],4))
a<-table.row.end(a)
n = length(z[1,])
for (i in 1:n) {
a<-table.row.start(a)
a<-table.element(a,paste(colnames(z)[i],' excluded',sep=''),header=TRUE)
a<-table.element(a,round(r$alpha.drop[i,'raw_alpha'],4))
a<-table.element(a,round(r$alpha.drop[i,'std.alpha'],4))
a<-table.element(a,round(r$alpha.drop[i,'G6(smc)'],4))
a<-table.element(a,round(r$alpha.drop[i,'average_r'],4))
a<-table.row.end(a)
}
a<-table.end(a)
table.save(a,file='mytable.tab')

Free Statistics

Description of Statistical Computation

Tree of Dependent Computations

Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code