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Description of Statistical Computation

Author's title

Author*Unverified author*
R Software Modulerwasp_cronbach.wasp
Title produced by softwareCronbach Alpha
Date of computationTue, 30 May 2023 02:01:46 +0200
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2023/May/30/t1685405023j1dpzmrxrwra1th.htm/, Retrieved Thu, 27 Aug 2026 22:34:26 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=319912, Retrieved Thu, 27 Aug 2026 22:34:26 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact388

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Cronbach Alpha] [pilot] [2023-05-30 00:01:46] [d41d8cd98f00b204e9800998ecf8427e] [Current]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time0 seconds
R ServerBig Analytics Cloud Computing Center
R Framework error message
The field 'Names of X columns' contains a hard return which cannot be interpreted.
Please, resubmit your request without hard returns in the 'Names of X columns'.

\begin{tabular}{lllllllll}
\hline
Summary of computational transaction \tabularnewline
Raw Input view raw input (R code)  \tabularnewline
Raw Outputview raw output of R engine  \tabularnewline
Computing time0 seconds \tabularnewline
R ServerBig Analytics Cloud Computing Center \tabularnewline
R Framework error message & 
The field 'Names of X columns' contains a hard return which cannot be interpreted.
Please, resubmit your request without hard returns in the 'Names of X columns'.
 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=319912&T=0

[TABLE]
[ROW]
Summary of computational transaction[/C][/ROW] [ROW]Raw Input[/C] view raw input (R code) [/C][/ROW] [ROW]Raw Output[/C]view raw output of R engine [/C][/ROW] [ROW]Computing time[/C]0 seconds[/C][/ROW] [ROW]R Server[/C]Big Analytics Cloud Computing Center[/C][/ROW] [ROW]R Framework error message[/C][C]
The field 'Names of X columns' contains a hard return which cannot be interpreted.
Please, resubmit your request without hard returns in the 'Names of X columns'.
[/C][/ROW] [/TABLE] Source: https://freestatistics.org/blog/index.php?pk=319912&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319912&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 Input view raw input (R code)
Raw Outputview raw output of R engine
Computing time0 seconds
R ServerBig Analytics Cloud Computing Center
R Framework error message
The field 'Names of X columns' contains a hard return which cannot be interpreted.
Please, resubmit your request without hard returns in the 'Names of X columns'.






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All items0.83490.84760.99810.1819
AQ1 excluded0.84650.85380.99810.1957
AQ2 excluded0.82650.84160.9980.1812
AQ3 excluded0.81240.82890.99790.168
AQ4 excluded0.81580.83230.99790.1714
AQ5 excluded0.82680.840.9980.1794
AQ6 excluded0.82380.83860.9980.178
BQ1 excluded0.8280.84340.9980.1833
BQ2 excluded0.83410.84680.9980.1872
BQ3 excluded0.82020.83660.99790.1758
BQ4 excluded0.84730.85390.99810.1958
BQ5 excluded0.83930.84920.99810.1901
BQ6 excluded0.83340.84730.9980.1878
CQ1 excluded0.83290.84610.9980.1864
CQ2 excluded0.81950.83360.99790.1726
CQ3 excluded0.83210.84360.9980.1835
CQ4 excluded0.83690.85220.99810.1938
CQ5 excluded0.83310.84750.9980.188
CQ6 excluded0.82770.84020.9980.1797
CQ7 excluded0.82130.83470.99790.1738
CQ8 excluded0.83480.85030.99810.1913
DQ1 excluded0.83480.8470.9980.1874
DQ2 excluded0.820.830.99790.1691
DQ3 excluded0.8240.83430.99790.1734
DQ4 excluded0.81880.83210.99790.1712
DQ5 excluded0.83170.844710.1848

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All items & 0.8349 & 0.8476 & 0.9981 & 0.1819 \tabularnewline
AQ1 excluded & 0.8465 & 0.8538 & 0.9981 & 0.1957 \tabularnewline
AQ2 excluded & 0.8265 & 0.8416 & 0.998 & 0.1812 \tabularnewline
AQ3 excluded & 0.8124 & 0.8289 & 0.9979 & 0.168 \tabularnewline
AQ4 excluded & 0.8158 & 0.8323 & 0.9979 & 0.1714 \tabularnewline
AQ5 excluded & 0.8268 & 0.84 & 0.998 & 0.1794 \tabularnewline
AQ6 excluded & 0.8238 & 0.8386 & 0.998 & 0.178 \tabularnewline
BQ1 excluded & 0.828 & 0.8434 & 0.998 & 0.1833 \tabularnewline
BQ2 excluded & 0.8341 & 0.8468 & 0.998 & 0.1872 \tabularnewline
BQ3 excluded & 0.8202 & 0.8366 & 0.9979 & 0.1758 \tabularnewline
BQ4 excluded & 0.8473 & 0.8539 & 0.9981 & 0.1958 \tabularnewline
BQ5 excluded & 0.8393 & 0.8492 & 0.9981 & 0.1901 \tabularnewline
BQ6 excluded & 0.8334 & 0.8473 & 0.998 & 0.1878 \tabularnewline
CQ1 excluded & 0.8329 & 0.8461 & 0.998 & 0.1864 \tabularnewline
CQ2 excluded & 0.8195 & 0.8336 & 0.9979 & 0.1726 \tabularnewline
CQ3 excluded & 0.8321 & 0.8436 & 0.998 & 0.1835 \tabularnewline
CQ4 excluded & 0.8369 & 0.8522 & 0.9981 & 0.1938 \tabularnewline
CQ5 excluded & 0.8331 & 0.8475 & 0.998 & 0.188 \tabularnewline
CQ6 excluded & 0.8277 & 0.8402 & 0.998 & 0.1797 \tabularnewline
CQ7 excluded & 0.8213 & 0.8347 & 0.9979 & 0.1738 \tabularnewline
CQ8 excluded & 0.8348 & 0.8503 & 0.9981 & 0.1913 \tabularnewline
DQ1 excluded & 0.8348 & 0.847 & 0.998 & 0.1874 \tabularnewline
DQ2 excluded & 0.82 & 0.83 & 0.9979 & 0.1691 \tabularnewline
DQ3 excluded & 0.824 & 0.8343 & 0.9979 & 0.1734 \tabularnewline
DQ4 excluded & 0.8188 & 0.8321 & 0.9979 & 0.1712 \tabularnewline
DQ5
 excluded & 0.8317 & 0.8447 & 1 & 0.1848 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=319912&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 items[/C][C]0.8349[/C][C]0.8476[/C][C]0.9981[/C][C]0.1819[/C][/ROW]
[ROW][C]AQ1 excluded[/C][C]0.8465[/C][C]0.8538[/C][C]0.9981[/C][C]0.1957[/C][/ROW]
[ROW][C]AQ2 excluded[/C][C]0.8265[/C][C]0.8416[/C][C]0.998[/C][C]0.1812[/C][/ROW]
[ROW][C]AQ3 excluded[/C][C]0.8124[/C][C]0.8289[/C][C]0.9979[/C][C]0.168[/C][/ROW]
[ROW][C]AQ4 excluded[/C][C]0.8158[/C][C]0.8323[/C][C]0.9979[/C][C]0.1714[/C][/ROW]
[ROW][C]AQ5 excluded[/C][C]0.8268[/C][C]0.84[/C][C]0.998[/C][C]0.1794[/C][/ROW]
[ROW][C]AQ6 excluded[/C][C]0.8238[/C][C]0.8386[/C][C]0.998[/C][C]0.178[/C][/ROW]
[ROW][C]BQ1 excluded[/C][C]0.828[/C][C]0.8434[/C][C]0.998[/C][C]0.1833[/C][/ROW]
[ROW][C]BQ2 excluded[/C][C]0.8341[/C][C]0.8468[/C][C]0.998[/C][C]0.1872[/C][/ROW]
[ROW][C]BQ3 excluded[/C][C]0.8202[/C][C]0.8366[/C][C]0.9979[/C][C]0.1758[/C][/ROW]
[ROW][C]BQ4 excluded[/C][C]0.8473[/C][C]0.8539[/C][C]0.9981[/C][C]0.1958[/C][/ROW]
[ROW][C]BQ5 excluded[/C][C]0.8393[/C][C]0.8492[/C][C]0.9981[/C][C]0.1901[/C][/ROW]
[ROW][C]BQ6 excluded[/C][C]0.8334[/C][C]0.8473[/C][C]0.998[/C][C]0.1878[/C][/ROW]
[ROW][C]CQ1 excluded[/C][C]0.8329[/C][C]0.8461[/C][C]0.998[/C][C]0.1864[/C][/ROW]
[ROW][C]CQ2 excluded[/C][C]0.8195[/C][C]0.8336[/C][C]0.9979[/C][C]0.1726[/C][/ROW]
[ROW][C]CQ3 excluded[/C][C]0.8321[/C][C]0.8436[/C][C]0.998[/C][C]0.1835[/C][/ROW]
[ROW][C]CQ4 excluded[/C][C]0.8369[/C][C]0.8522[/C][C]0.9981[/C][C]0.1938[/C][/ROW]
[ROW][C]CQ5 excluded[/C][C]0.8331[/C][C]0.8475[/C][C]0.998[/C][C]0.188[/C][/ROW]
[ROW][C]CQ6 excluded[/C][C]0.8277[/C][C]0.8402[/C][C]0.998[/C][C]0.1797[/C][/ROW]
[ROW][C]CQ7 excluded[/C][C]0.8213[/C][C]0.8347[/C][C]0.9979[/C][C]0.1738[/C][/ROW]
[ROW][C]CQ8 excluded[/C][C]0.8348[/C][C]0.8503[/C][C]0.9981[/C][C]0.1913[/C][/ROW]
[ROW][C]DQ1 excluded[/C][C]0.8348[/C][C]0.847[/C][C]0.998[/C][C]0.1874[/C][/ROW]
[ROW][C]DQ2 excluded[/C][C]0.82[/C][C]0.83[/C][C]0.9979[/C][C]0.1691[/C][/ROW]
[ROW][C]DQ3 excluded[/C][C]0.824[/C][C]0.8343[/C][C]0.9979[/C][C]0.1734[/C][/ROW]
[ROW][C]DQ4 excluded[/C][C]0.8188[/C][C]0.8321[/C][C]0.9979[/C][C]0.1712[/C][/ROW]
[ROW][C]DQ5
 excluded[/C][C]0.8317[/C][C]0.8447[/C][C]1[/C][C]0.1848[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=319912&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=319912&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 items0.83490.84760.99810.1819
AQ1 excluded0.84650.85380.99810.1957
AQ2 excluded0.82650.84160.9980.1812
AQ3 excluded0.81240.82890.99790.168
AQ4 excluded0.81580.83230.99790.1714
AQ5 excluded0.82680.840.9980.1794
AQ6 excluded0.82380.83860.9980.178
BQ1 excluded0.8280.84340.9980.1833
BQ2 excluded0.83410.84680.9980.1872
BQ3 excluded0.82020.83660.99790.1758
BQ4 excluded0.84730.85390.99810.1958
BQ5 excluded0.83930.84920.99810.1901
BQ6 excluded0.83340.84730.9980.1878
CQ1 excluded0.83290.84610.9980.1864
CQ2 excluded0.81950.83360.99790.1726
CQ3 excluded0.83210.84360.9980.1835
CQ4 excluded0.83690.85220.99810.1938
CQ5 excluded0.83310.84750.9980.188
CQ6 excluded0.82770.84020.9980.1797
CQ7 excluded0.82130.83470.99790.1738
CQ8 excluded0.83480.85030.99810.1913
DQ1 excluded0.83480.8470.9980.1874
DQ2 excluded0.820.830.99790.1691
DQ3 excluded0.8240.83430.99790.1734
DQ4 excluded0.81880.83210.99790.1712
DQ5 excluded0.83170.844710.1848


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = TRUE ;
Parameters (R input):
par1 = TRUE ;
R code (references can be found in the software module):
par1 <- 'TRUE'
library(psych)
par1b <- T
if(par1=='FALSE') par1b <- F
z <- t(y)
(r <- alpha(z,check.keys=par1b))
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 items',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')