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Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_cronbach.wasp
Title produced by softwareCronbach Alpha
Date of computationMon, 06 Dec 2010 23:55:50 +0000
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2010/Dec/07/t12916796872j2e41ise3nnccm.htm/, Retrieved Sat, 04 May 2024 05:31:00 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=105988, Retrieved Sat, 04 May 2024 05:31:00 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact152

Tree of Dependent Computations

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 11:46:14] [b98453cac15ba1066b407e146608df68]
-    D  [Cronbach Alpha] [WS3 - Task 2- Ext...] [2010-10-19 17:10:12] [19f9551d4d95750ef21e9f3cf8fe2131]
- R  D    [Cronbach Alpha] [p_Stress_CA1Bel] [2010-12-04 09:09:44] [19f9551d4d95750ef21e9f3cf8fe2131]
-    D      [Cronbach Alpha] [p_Stress_CA2Verwa...] [2010-12-04 09:17:09] [19f9551d4d95750ef21e9f3cf8fe2131]
-    D        [Cronbach Alpha] [p_Stress_CA3Dep] [2010-12-04 10:17:30] [19f9551d4d95750ef21e9f3cf8fe2131]
-    D          [Cronbach Alpha] [p_Stress_CA4Alc] [2010-12-04 10:32:08] [19f9551d4d95750ef21e9f3cf8fe2131]
-    D              [Cronbach Alpha] [p_Stress_CA6Eten] [2010-12-06 23:55:50] [fca744d17b21beb005bf086e7071b2bb] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
4	4	4	3	2
4	4	4	4	4
3	3	4	2	4
3	4	3	3	3
2	3	4	2	2
3	3	2	4	4
3	5	5	4	2
3	3	4	4	4
4	4	2	4	4
5	5	4	3	3
3	5	3	3	3
3	3	3	3	1
5	5	4	4	4
3	4	4	3	4
4	4	4	4	4
3	5	4	4	3
4	5	3	3	3
3	4	4	4	4
3	5	4	2	4
3	5	4	3	4
4	4	2	4	4
2	2	4	2	4
5	3	4	4	4
3	3	3	2	3
5	5	5	5	5
5	5	4	4	4
3	4	3	3	3
3	4	4	3	3
3	4	4	4	4
3	4	3	3	3
5	5	5	5	5
4	3	4	3	4
4	5	5	5	5
4	4	4	3	4
4	4	2	4	4
4	4	1	1	3
2	4	4	2	4
5	5	2	4	4
3	5	3	2	3
2	4	4	3	4
5	5	1	4	1
3	3	4	3	4
3	3	4	3	4
4	4	2	1	5
3	3	4	4	4
3	4	3	4	3
3	1	3	3	1
3	3	3	1	4
3	5	2	2	4
3	5	3	4	4
2	3	4	2	4
4	4	4	2	3
2	4	4	4	4
3	5	3	3	3
4	4	1	1	4
5	5	3	4	3
5	5	4	3	4
2	5	5	2	3
3	4	3	3	4
3	5	4	4	4
3	4	3	3	3
3	4	4	4	4
2	5	5	3	4
3	3	4	3	4
3	5	4	1	4
3	4	4	2	4
4	5	5	5	5
2	4	1	4	4
4	5	5	3	3
4	5	4	4	4
5	5	3	3	4
2	5	4	3	3
3	5	3	4	4
4	4	2	3	4
5	5	3	4	4
3	4	4	4	2
3	3	3	3	4
3	3	4	2	3
4	5	4	4	4
3	4	2	4	5
3	4	3	2	4
3	5	3	3	3
4	4	4	3	4
4	3	4	3	4
2	4	2	3	4
2	4	3	4	4
2	4	4	4	3
3	4	4	3	4
4	3	4	3	4
3	4	4	4	4
3	4	4	4	4
5	5	5	5	5
3	4	4	2	4
3	3	4	2	4
4	4	4	4	2
3	4	4	4	3
4	5	4	2	4
3	4	4	4	4
2	4	4	4	4
4	4	4	4	4
4	4	4	4	4
4	5	3	4	4
5	5	4	4	4
5	5	3	3	3
3	4	2	4	4
4	5	4	4	3
5	5	4	4	4
3	4	4	4	4
5	0	3	4	4
4	4	4	4	4
4	4	4	3	4
2	2	4	2	3
5	0	5	4	4
3	4	4	4	2
3	4	3	3	4
5	5	4	4	4
2	5	5	5	5
3	4	4	2	4
3	4	5	3	4
3	4	3	3	3
3	5	4	3	4
4	3	4	4	4
3	5	4	4	4
3	3	3	4	4
3	4	4	4	4
3	4	2	4	4
4	5	3	4	4
3	3	2	3	1
4	4	3	3	3
4	4	2	4	3
4	4	3	3	3
2	4	4	4	3
4	5	1	4	4
3	4	4	3	4
5	5	0	4	2
4	2	2	4	4
4	4	3	4	4
3	3	3	3	3
4	4	4	3	4
3	4	4	3	4
4	5	4	4	4
4	4	3	3	4
2	4	4	4	4
4	5	3	3	3
4	5	4	4	4
4	5	1	4	3
3	5	1	4	1
5	5	1	3	3
4	4	3	3	3
3	4	4	4	4
3	4	3	3	3
3	5	4	4	4
3	2	3	3	3
3	5	5	4	5
5	5	5	5	5
2	4	4	3	4
3	3	2	3	1
2	4	3	3	4
3	4	3	3	3

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R Server'Sir Ronald Aylmer Fisher' @ 193.190.124.24

\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 & 1 seconds \tabularnewline
R Server & 'Sir Ronald Aylmer Fisher' @ 193.190.124.24 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=105988&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]1 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Sir Ronald Aylmer Fisher' @ 193.190.124.24[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=105988&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=105988&T=0

As an alternative you can also use a QR Code:  
QR Code


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

Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R Server'Sir Ronald Aylmer Fisher' @ 193.190.124.24






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.45060.46070.44560.1459
Q43_3 excluded0.43750.44530.39780.1672
Q43_4 excluded0.40950.41950.39980.153
Q43_5 excluded0.46410.46290.40.1773
Q43_6 excluded0.31780.3290.31690.1092
Q43_7 excluded0.34310.35940.33270.123

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.4506 & 0.4607 & 0.4456 & 0.1459 \tabularnewline
Q43_3 excluded & 0.4375 & 0.4453 & 0.3978 & 0.1672 \tabularnewline
Q43_4 excluded & 0.4095 & 0.4195 & 0.3998 & 0.153 \tabularnewline
Q43_5 excluded & 0.4641 & 0.4629 & 0.4 & 0.1773 \tabularnewline
Q43_6 excluded & 0.3178 & 0.329 & 0.3169 & 0.1092 \tabularnewline
Q43_7 excluded & 0.3431 & 0.3594 & 0.3327 & 0.123 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=105988&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]0.4506[/C][C]0.4607[/C][C]0.4456[/C][C]0.1459[/C][/ROW]
[ROW][C]Q43_3 excluded[/C][C]0.4375[/C][C]0.4453[/C][C]0.3978[/C][C]0.1672[/C][/ROW]
[ROW][C]Q43_4 excluded[/C][C]0.4095[/C][C]0.4195[/C][C]0.3998[/C][C]0.153[/C][/ROW]
[ROW][C]Q43_5 excluded[/C][C]0.4641[/C][C]0.4629[/C][C]0.4[/C][C]0.1773[/C][/ROW]
[ROW][C]Q43_6 excluded[/C][C]0.3178[/C][C]0.329[/C][C]0.3169[/C][C]0.1092[/C][/ROW]
[ROW][C]Q43_7 excluded[/C][C]0.3431[/C][C]0.3594[/C][C]0.3327[/C][C]0.123[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=105988&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=105988&T=1

As an alternative you can also use a QR Code:  
QR Code


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

Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.45060.46070.44560.1459
Q43_3 excluded0.43750.44530.39780.1672
Q43_4 excluded0.40950.41950.39980.153
Q43_5 excluded0.46410.46290.40.1773
Q43_6 excluded0.31780.3290.31690.1092
Q43_7 excluded0.34310.35940.33270.123


Figures (Output of Computation)

Input Parameters & R Code

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')