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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 computationSat, 06 Dec 2014 17:05:58 +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/2014/Dec/06/t14178855675q9ckuaa7iptk5g.htm/, Retrieved Sun, 17 May 2026 07:01:11 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=263664, Retrieved Sun, 17 May 2026 07:01:11 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact356

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 11:40:37] [b98453cac15ba1066b407e146608df68]
- R  D  [Cronbach Alpha] [] [2011-10-18 12:27:58] [b98453cac15ba1066b407e146608df68]
- RM      [Cronbach Alpha] [] [2014-10-16 13:44:05] [4c4ebb0b36a379d1d949ba77427e658a]
-  M D      [Cronbach Alpha] [] [2014-12-06 16:59:54] [4c4ebb0b36a379d1d949ba77427e658a]
-    D        [Cronbach Alpha] [] [2014-12-06 17:01:21] [4c4ebb0b36a379d1d949ba77427e658a]
-    D          [Cronbach Alpha] [] [2014-12-06 17:03:17] [4c4ebb0b36a379d1d949ba77427e658a]
-    D              [Cronbach Alpha] [] [2014-12-06 17:05:58] [d9810f96fa2f1581f787e7f797109997] [Current]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time0 seconds
R Server'Sir Ronald Aylmer Fisher' @ fisher.wessa.net

\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 & 0 seconds \tabularnewline
R Server & 'Sir Ronald Aylmer Fisher' @ fisher.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=263664&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]0 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Sir Ronald Aylmer Fisher' @ fisher.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=263664&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=263664&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 time0 seconds
R Server'Sir Ronald Aylmer Fisher' @ fisher.wessa.net






Cronbach Alpha and Related Statistics
ItemsCronbach AlphaStd. AlphaG6(smc)Average R
All itmes0.84090.84710.86010.48
PERFECTIONISM2 excluded0.84020.84360.83490.5189
PERFECTIONISM7 excluded0.81150.820.82910.4768
PERFECTIONISM8 excluded0.80020.80030.81720.4449
PERFECTIONISM27 excluded0.86130.86780.86610.5677
PERFECTIONISM29 excluded0.79670.80620.82470.4541
PERFECTIONISM31 excluded0.76780.78180.78060.4175

\begin{tabular}{lllllllll}
\hline
Cronbach Alpha and Related Statistics \tabularnewline
Items & Cronbach Alpha & Std. Alpha & G6(smc) & Average R \tabularnewline
All itmes & 0.8409 & 0.8471 & 0.8601 & 0.48 \tabularnewline
PERFECTIONISM2 excluded & 0.8402 & 0.8436 & 0.8349 & 0.5189 \tabularnewline
PERFECTIONISM7 excluded & 0.8115 & 0.82 & 0.8291 & 0.4768 \tabularnewline
PERFECTIONISM8 excluded & 0.8002 & 0.8003 & 0.8172 & 0.4449 \tabularnewline
PERFECTIONISM27 excluded & 0.8613 & 0.8678 & 0.8661 & 0.5677 \tabularnewline
PERFECTIONISM29 excluded & 0.7967 & 0.8062 & 0.8247 & 0.4541 \tabularnewline
PERFECTIONISM31 excluded & 0.7678 & 0.7818 & 0.7806 & 0.4175 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=263664&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]0.8409[/C][C]0.8471[/C][C]0.8601[/C][C]0.48[/C][/ROW]
[ROW][C]PERFECTIONISM2 excluded[/C][C]0.8402[/C][C]0.8436[/C][C]0.8349[/C][C]0.5189[/C][/ROW]
[ROW][C]PERFECTIONISM7 excluded[/C][C]0.8115[/C][C]0.82[/C][C]0.8291[/C][C]0.4768[/C][/ROW]
[ROW][C]PERFECTIONISM8 excluded[/C][C]0.8002[/C][C]0.8003[/C][C]0.8172[/C][C]0.4449[/C][/ROW]
[ROW][C]PERFECTIONISM27 excluded[/C][C]0.8613[/C][C]0.8678[/C][C]0.8661[/C][C]0.5677[/C][/ROW]
[ROW][C]PERFECTIONISM29 excluded[/C][C]0.7967[/C][C]0.8062[/C][C]0.8247[/C][C]0.4541[/C][/ROW]
[ROW][C]PERFECTIONISM31 excluded[/C][C]0.7678[/C][C]0.7818[/C][C]0.7806[/C][C]0.4175[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=263664&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=263664&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 itmes0.84090.84710.86010.48
PERFECTIONISM2 excluded0.84020.84360.83490.5189
PERFECTIONISM7 excluded0.81150.820.82910.4768
PERFECTIONISM8 excluded0.80020.80030.81720.4449
PERFECTIONISM27 excluded0.86130.86780.86610.5677
PERFECTIONISM29 excluded0.79670.80620.82470.4541
PERFECTIONISM31 excluded0.76780.78180.78060.4175


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
Parameters (R input):
par1 = TRUE ;
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')