操作変数法

Instrumental variables estimation - technique in statistics. Article “操作変数法” in Japanese Wikipedia has 26.8 points for quality (as of July 1, 2025). The article contains 20 references and 14 sections.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (Japanese) language version.

Since the creation of article “操作変数法”, its content was written by 6 registered users of Japanese Wikipedia and edited by 291 registered Wikipedia users in all languages.

The article is cited 12 times in Japanese Wikipedia and cited 324 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Japanese): #16709 in November 2021
• Global: #37281 in February 2005

The highest popularity rank from 2008:

• Local (Japanese): #106080 in June 2023
• Global: #72999 in April 2015

There are 17 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) Instrumental variables estimation		57.0453
2	Polish (pl) Metoda zmiennych instrumentalnych		31.0065
3	Japanese (ja) 操作変数法		26.8493
4	German (de) Instrumentvariablenschätzung		24.1833
5	Slovenian (sl) Ocenjevanje z instrumentalnimi spremenljivkami		23.3098
6	Finnish (fi) Instrumenttimuuttuja		22.1584
7	Spanish (es) Variable instrumental		21.8864
8	Persian (fa) متغیر ابزاری		20.2045
9	Chinese (zh) 工具变量		15.6773
10	Swedish (sv) Instrumentvariabel		15.0962

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The following table shows the most popular language versions of the article.

The most popular language versions of the article "操作変数法" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Instrumental variables estimation		2 391 879
2	German (de) Instrumentvariablenschätzung		215 922
3	Chinese (zh) 工具变量		121 607
4	Spanish (es) Variable instrumental		113 168
5	Japanese (ja) 操作変数法		91 680
6	Italian (it) Variabili strumentali		71 416
7	Russian (ru) Метод инструментальных переменных		59 069
8	French (fr) Méthode des variables instrumentales		54 567
9	Portuguese (pt) Variáveis instrumentais		46 521
10	Korean (ko) 도구 변수		28 834

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "操作変数法" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Instrumental variables estimation		5 661
2	Japanese (ja) 操作変数法		601
3	Chinese (zh) 工具变量		347
4	German (de) Instrumentvariablenschätzung		326
5	French (fr) Méthode des variables instrumentales		227
6	Finnish (fi) Instrumenttimuuttuja		211
7	Spanish (es) Variable instrumental		139
8	Italian (it) Variabili strumentali		130
9	Russian (ru) Метод инструментальных переменных		121
10	Korean (ko) 도구 변수		92

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The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "操作変数法" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Instrumental variables estimation		120
2	German (de) Instrumentvariablenschätzung		53
3	Italian (it) Variabili strumentali		36
4	Portuguese (pt) Variáveis instrumentais		12
5	Persian (fa) متغیر ابزاری		11
6	Finnish (fi) Instrumenttimuuttuja		7
7	Russian (ru) Метод инструментальных переменных		7
8	Ukrainian (uk) Метод інструментальних змінних		7
9	Japanese (ja) 操作変数法		6
10	Chinese (zh) 工具变量		6

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "操作変数法" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Slovenian (sl) Ocenjevanje z instrumentalnimi spremenljivkami		3
2	English (en) Instrumental variables estimation		1
3	Portuguese (pt) Variáveis instrumentais		1
4	German (de) Instrumentvariablenschätzung		0
5	Spanish (es) Variable instrumental		0
6	Persian (fa) متغیر ابزاری		0
7	Finnish (fi) Instrumenttimuuttuja		0
8	French (fr) Méthode des variables instrumentales		0
9	Hebrew (he) משתנה עזר		0
10	Italian (it) Variabili strumentali		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "操作変数法" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Instrumental variables estimation		105
2	Italian (it) Variabili strumentali		78
3	Portuguese (pt) Variáveis instrumentais		26
4	German (de) Instrumentvariablenschätzung		20
5	French (fr) Méthode des variables instrumentales		17
6	Russian (ru) Метод инструментальных переменных		15
7	Japanese (ja) 操作変数法		12
8	Chinese (zh) 工具变量		12
9	Spanish (es) Variable instrumental		11
10	Ukrainian (uk) Метод інструментальних змінних		8

More...

#	Language	Value
de	German Instrumentvariablenschätzung
en	English Instrumental variables estimation
es	Spanish Variable instrumental
fa	Persian متغیر ابزاری
fi	Finnish Instrumenttimuuttuja
fr	French Méthode des variables instrumentales
he	Hebrew משתנה עזר
it	Italian Variabili strumentali
ja	Japanese 操作変数法
ko	Korean 도구 변수
pl	Polish Metoda zmiennych instrumentalnych
pt	Portuguese Variáveis instrumentais
ru	Russian Метод инструментальных переменных
sl	Slovenian Ocenjevanje z instrumentalnimi spremenljivkami
sv	Swedish Instrumentvariabel
uk	Ukrainian Метод інструментальних змінних
zh	Chinese 工具变量

Best Rank

Japanese: #106080 06.2023

Global: #72999 04.2015

Best Rank

Japanese: #16709 11.2021

Global: #37281 02.2005

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information