Glossary entry (derived from question below)
English term or phrase:
chi-square or chi-squared?
English answer:
chi-square
Added to glossary by
Ramona Ali
May 27, 2004 05:06
19 yrs ago
14 viewers *
English term
User Manuals, Codes of Conduct, Medical
Native in: Malay 
Works in: English to Malay, Malay, Malay to English
chi-square or chi-squared?
English
Science
Mathematics & Statistics
Statistics
In statistics, is it the Chi-square test or the Chi-squared test?
Responses
| 4 +12 | Chi-square Test |
jerrie
|
| 4 | chi-square |
Roddy Stegemann
|
Responses
+12
8 mins
Selected
Chi-square Test
seems to be more popular (google) - 37,000 vs 9,000
--------------------------------------------------
Note added at 2004-05-27 05:49:57 (GMT)
--------------------------------------------------
Karl Pearson\'s chi-square test:
http://en.wikipedia.org/wiki/Pearson's_chi-square_test
Pearson\'s chi-square test
From Wikipedia, the free encyclopedia.
Pearson\'s chi-square test (÷2) is one of a variety of chi-square tests – statistical procedures whose results are evaluated by reference to the chi-square distribution. It tests a null hypothesis that the relative frequencies of occurrence of observed events follow a specified frequency distribution. The events must be mutually exclusive. One of the simplest examples is the hypothesis that an ordinary six-sided die is \"fair\", i.e., all six outcomes occur equally often. Chi-square is calculated by finding the difference between each observed and theoretical frequency, squaring them, dividing each by the theoretical frequency, and taking the sum of the results:
etc
hth
--------------------------------------------------
Note added at 2004-05-27 05:49:57 (GMT)
--------------------------------------------------
Karl Pearson\'s chi-square test:
http://en.wikipedia.org/wiki/Pearson's_chi-square_test
Pearson\'s chi-square test
From Wikipedia, the free encyclopedia.
Pearson\'s chi-square test (÷2) is one of a variety of chi-square tests – statistical procedures whose results are evaluated by reference to the chi-square distribution. It tests a null hypothesis that the relative frequencies of occurrence of observed events follow a specified frequency distribution. The events must be mutually exclusive. One of the simplest examples is the hypothesis that an ordinary six-sided die is \"fair\", i.e., all six outcomes occur equally often. Chi-square is calculated by finding the difference between each observed and theoretical frequency, squaring them, dividing each by the theoretical frequency, and taking the sum of the results:
etc
hth
Peer comment(s):
| agree |
Vicky Papaprodromou
2 mins
|
| agree |
Eva Karpouzi
3 mins
|
|
Thanks
|
|
| agree |
Kirill Semenov
12 mins
|
| agree |
Begoña Yañez
: Yep. A psychology Statistics test
27 mins
|
|
Thanks
|
|
| agree |
Java Cafe
47 mins
|
| agree |
RHELLER
: this seems to be more common
1 hr
|
| agree |
Edith Kelly
1 hr
|
|
Thanks
|
|
| agree |
Attila Piróth
: Encyclopaedia Britannica uses "chi-square test", so the author of the thesis chose well. I suppose "chi-squared" is also acceptable, but that is another matter.
3 hrs
|
| agree |
Mikhail Kropotov
: chi-square is preferrable by far
3 hrs
|
|
Thanks
|
|
| neutral |
Roddy Stegemann
: Please do not confuse the chi-square statistic with the chi-square test. They are not one in the same. The chi-square test is a special use of the chi-square statistic .
4 hrs
|
| agree |
Craft.Content
: Agree with Hamo on the statistic/test point, too.
6 hrs
|
| agree |
Elena Sgarbo (X)
6 hrs
|
|
Thanks
|
|
| agree |
nlingua
12 hrs
|
4 KudoZ points awarded for this answer.
Comment: "Thank, everybody! Chi-square it is."
4 hrs
Roddy Stegemann
United States
United States
Native in English
&
English
United States
Search HKLNA!
Native in: English 
Works in: German to English, Japanese to English, French to English, and 3 more.
Related KudoZ points
:
12
chi-square
Chi-square is the name of a probability distribution symbolised by the square of the greek letter chi. The chi-square statistic is a statistic that is chi-square distributed. The chi-square test is a special use of the chi-square statistic usually employed as a measure of goodness-of-fit.
As chi-square is the formal name of a probability distribution, as well as the statistic described by thtat distribution, the expression "chi-squared" is clearly incorrect. The probable reason for seeing and hearing this incorrect rendering so often is the way in which the mathematical symbol for the statistic and distribution are commonly written.
--------------------------------------------------
Note added at 4 hrs 25 mins (2004-05-27 09:31:48 GMT)
--------------------------------------------------
See http://homepage.mac.com/moogoonghwa/earth/current/hklna/ff/s...
As chi-square is the formal name of a probability distribution, as well as the statistic described by thtat distribution, the expression "chi-squared" is clearly incorrect. The probable reason for seeing and hearing this incorrect rendering so often is the way in which the mathematical symbol for the statistic and distribution are commonly written.
--------------------------------------------------
Note added at 4 hrs 25 mins (2004-05-27 09:31:48 GMT)
--------------------------------------------------
See http://homepage.mac.com/moogoonghwa/earth/current/hklna/ff/s...
Discussion