Does your rank ordered or scaled skewed data have ties?
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Does your rank ordered or scaled skewed data have ties?
The question before you at this point is:
“Are there ties among the rank ordered data I’m working with or not?”
The question before you at this point is:
“Are there ties among the data I’m working with or not?”
Your options of course are:
Your options of course are:
There are NO TIES
There are TIES
Let’s consider an example:
You have been asked to determine if there is a relationship between gender and spelling bee competition rankings.
You have been asked to determine if there is a relationship between gender and spelling bee competition rankings.
Marathon Runners Gender Spelling Bee Rank
A 1 6th
B 2 6th
C 2 4th
D 2 2nd
E 1 7th
F 1 1st
G 2 3rd
You have been asked to determine if there is a relationship between gender and spelling bee competition rankings.
Marathon Runners Gender Spelling Bee Rank
A 1 6th
B 2 6th
C 2 4th
D 2 2nd
E 1 7th
F 1 1st
G 2 3rd
Notice that these two
runners have a tied
ranking
When the rankings are tied you will use a statistical method called Kendall’s Tau.
When the rankings are tied you will use a statistical method called Kendall’s Tau.
Spelling Bee Rank
6th
6th
4th
When the rankings are tied you will use a statistical method called Kendall’s Tau.
When the rankings are not tied you will use a statistical method called Spearman’s Rho.
Spelling Bee Rank
6th
5th
4th
Spelling Bee Rank
6th
6th
4th
This would be the same if your scaled (skewed) data had ties.
This would be the same if your scaled (skewed) data had ties.
MonthAverage Daily Temperature
Average Daily Ice Cream Sales
Jan 100
$100Feb 20
0$200
Mar 300
$300Apr 40
0$400
May 500
$500Jun 60
0$300
Jul 700
$200Aug 60
0$100
Sep 500
$300Oct 40
0$200
Nov 300
$400Dec 80
0$1000
Notice that these two temperature readings are tied
This would be the same if your scaled (skewed) data had ties.
MonthAverage Daily Temperature
Average Daily Ice Cream Sales
Jan 100
$100Feb 20
0$200
Mar 300
$300Apr 40
0$400
May 500
$500Jun 60
0$300
Jul 700
$200Aug 60
0$100
Sep 500
$300Oct 40
0$200
Nov 300
$400Dec 80
0$1000
And these are tied as well
This would be the same if your scaled (skewed) data had ties.
MonthAverage Daily Temperature
Average Daily Ice Cream Sales
Jan 100
$100Feb 20
0$200
Mar 300
$300Apr 40
0$400
May 500
$500Jun 60
0$300
Jul 700
$200Aug 60
0$100
Sep 500
$300Oct 40
0$200
Nov 300
$400Dec 80
0$1000
And these are tied as well
This would be the same if your scaled (skewed) data had ties.
MonthAverage Daily Temperature
Average Daily Ice Cream Sales
Jan 100
$100Feb 20
0$200
Mar 300
$300Apr 40
0$400
May 500
$500Jun 60
0$300
Jul 700
$200Aug 60
0$100
Sep 500
$300Oct 40
0$200
Nov 300
$400Dec 80
0$1000
And so are these
Which option would be most appropriate for the data set you are working with:
There are NO TIES
There are TIES
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