About: Item tree analysis

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Item tree analysis (ITA) is a data analytical method which allows constructing ahierarchical structure on the items of a questionnaire or test from observed responsepatterns. Assume that we have a questionnaire with m items and that subjects cananswer positive (1) or negative (0) to each of these items, i.e. the items aredichotomous. If n subjects answer the items this results in a binary data matrix Dwith m columns and n rows.Typical examples of this data format are test items which can be solved (1) or failed(0) by subjects. Other typical examples are questionnaires where the items arestatements to which subjects can agree (1) or disagree (0).Depending on the content of the items it is possible that the response of a subject to anitem j determines her or his responses to other items. It

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rdfs:label	Item tree analysis (en)
rdfs:comment	Item tree analysis (ITA) is a data analytical method which allows constructing ahierarchical structure on the items of a questionnaire or test from observed responsepatterns. Assume that we have a questionnaire with m items and that subjects cananswer positive (1) or negative (0) to each of these items, i.e. the items aredichotomous. If n subjects answer the items this results in a binary data matrix Dwith m columns and n rows.Typical examples of this data format are test items which can be solved (1) or failed(0) by subjects. Other typical examples are questionnaires where the items arestatements to which subjects can agree (1) or disagree (0).Depending on the content of the items it is possible that the response of a subject to anitem j determines her or his responses to other items. It (en)
foaf:depiction
dcterms:subject	Sampling (statistics) Data analysis Types of polling
Wikipage page ID	16569923 (xsd:integer)
Wikipage revision ID	1040825511 (xsd:integer)
Link from a Wikipage to another Wikipage	Minority group Binary numeral system Determinism Algorithm Value system Insight Concept inventory Matrix (mathematics) Logical implication Transitive relation Data analysis Data set Questionnaire Algebra Dichotomy Item response theory Mathematical proof Sampling (statistics) Data analysis Boolean analysis Types of polling Reflexive relation National identity Social studies Western Germany Exploratory data analysis Boolean logic Quasi-order Logically consistent
Link from a Wikipage to an external page	http://www.jstatsoft.org/v16/i10 http://www.jstatsoft.org/v16/i10/paper
sameAs	Item tree analysis Item tree analysis Item tree analysis
dbp:wikiPageUsesTemplate	dbt:Reflist
thumbnail	wiki-commons:Special:FilePath/Results_of_ITA_for_ISSP_1995_question_4.jpg?width=300
has abstract	Item tree analysis (ITA) is a data analytical method which allows constructing ahierarchical structure on the items of a questionnaire or test from observed responsepatterns. Assume that we have a questionnaire with m items and that subjects cananswer positive (1) or negative (0) to each of these items, i.e. the items aredichotomous. If n subjects answer the items this results in a binary data matrix Dwith m columns and n rows.Typical examples of this data format are test items which can be solved (1) or failed(0) by subjects. Other typical examples are questionnaires where the items arestatements to which subjects can agree (1) or disagree (0).Depending on the content of the items it is possible that the response of a subject to anitem j determines her or his responses to other items. It is, for example, possible thateach subject who agrees to item j will also agree to item i. In this case we say thatitem j implies item i (short ). The goal of an ITA is to uncover suchdeterministic implications from the data set D. (en)
prov:wasDerivedFrom	wikipedia-en:Item_tree_analysis?oldid=1040825511&ns=0
page length (characters) of wiki page	9611 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Item_tree_analysis
is Link from a Wikipage to another Wikipage of	Knowledge space Boolean analysis Algorithms for item tree analysis List of statistics articles
is Wikipage redirect of	Algorithms for item tree analysis
is foaf:primaryTopic of	wikipedia-en:Item_tree_analysis

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