{"id":"https://openalex.org/W2008373856","doi":"https://doi.org/10.1037/1082-989x.8.1.102","title":"Estimating the reliability of a test split into two parts of equal or unequal length.","display_name":"Estimating the reliability of a test split into two parts of equal or unequal length.","publication_year":2003,"publication_date":"2003-01-01","ids":{"openalex":"https://openalex.org/W2008373856","doi":"https://doi.org/10.1037/1082-989x.8.1.102","mag":"2008373856","pmid":"https://pubmed.ncbi.nlm.nih.gov/12741676"},"language":"en","primary_location":{"id":"doi:10.1037/1082-989x.8.1.102","doi":"https://doi.org/10.1037/1082-989x.8.1.102","is_oa":false,"landing_page_url":"https://doi.org/10.1037/1082-989x.8.1.102","pdf_url":null,"source":{"id":"https://openalex.org/S45419345","display_name":"Psychological Methods","issn_l":"1082-989X","issn":["1082-989X","1939-1463"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-b","anvur-class-a","anvur-scientific","cwts-core","dongbi-a","erih-plus","jufo-3","ki-jl-2","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320262","host_organization_name":"American Psychological Association","host_organization_lineage":["https://openalex.org/P4310320262"],"host_organization_lineage_names":["American Psychological Association"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Psychological Methods","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5035614364","display_name":"Leonard S. Feldt","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126307644","display_name":"University of Iowa","ror":"https://ror.org/036jqmy94","country_code":"US","type":"education","lineage":["https://openalex.org/I126307644"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Leonard S. Feldt","raw_affiliation_strings":["Iowa Testing Programs, The University of Iowa, Iowa City 52242-1529, USA. leonard-feldt@uiowa.edu","Iowa Testing Programs, The University of Iowa, Iowa City 52242-1529, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Iowa Testing Programs, The University of Iowa, Iowa City 52242-1529, USA. leonard-feldt@uiowa.edu","institution_ids":["https://openalex.org/I126307644"]},{"raw_affiliation_string":"Iowa Testing Programs, The University of Iowa, Iowa City 52242-1529, USA","institution_ids":["https://openalex.org/I126307644"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5088564096","display_name":"Richard A. Charter","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210154430","display_name":"VA Long Beach Healthcare System","ror":"https://ror.org/058p1kn93","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I1322918889","https://openalex.org/I2799886695","https://openalex.org/I4210138663","https://openalex.org/I4210154430"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Richard A. Charter","raw_affiliation_strings":["Veterans Affairs Long Beach Healthcare System, Mental Health Group, Long Beach, CA, US"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Veterans Affairs Long Beach Healthcare System, Mental Health Group, Long Beach, CA, US","institution_ids":["https://openalex.org/I4210154430"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":4.0081,"has_fulltext":false,"cited_by_count":62,"citation_normalized_percentile":{"value":0.92720356,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"8","issue":"1","first_page":"102","last_page":"109"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10467","display_name":"Psychometric Methodologies and Testing","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T10467","display_name":"Psychometric Methodologies and Testing","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13309","display_name":"Reliability and Agreement in Measurement","score":0.00039999998989515007,"subfield":{"id":"https://openalex.org/subfields/1804","display_name":"Statistics, Probability and Uncertainty"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12884","display_name":"Educational Assessment and Pedagogy","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/3304","display_name":"Education"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/test-reliability","display_name":"test reliability","score":0.7250000238418579},{"id":"https://openalex.org/keywords/internal-consistency","display_name":"internal consistency","score":0.7200000286102295},{"id":"https://openalex.org/keywords/split-half-reliability","display_name":"split-half reliability","score":0.7139999866485596},{"id":"https://openalex.org/keywords/spearman-brown-formula","display_name":"Spearman-Brown formula","score":0.8220000267028809},{"id":"https://openalex.org/keywords/cronbach-s-alpha","display_name":"Cronbach's alpha","score":0.9900000095367432},{"id":"https://openalex.org/keywords/content-equivalence","display_name":"content equivalence","score":0.6620000004768372},{"id":"https://openalex.org/keywords/standard-deviation-ratio","display_name":"standard deviation ratio","score":0.6700000166893005}],"concepts":[{"id":"https://openalex.org/C106906290","wikidata":"https://www.wikidata.org/wiki/Q1140909","display_name":"Cronbach's alpha","level":3,"score":0.8783997297286987},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.7267232537269592},{"id":"https://openalex.org/C2780069185","wikidata":"https://www.wikidata.org/wiki/Q7977945","display_name":"Equivalence (formal languages)","level":2,"score":0.6839383840560913},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6789900064468384},{"id":"https://openalex.org/C43214815","wikidata":"https://www.wikidata.org/wiki/Q7310987","display_name":"Reliability (semiconductor)","level":3,"score":0.6014220714569092},{"id":"https://openalex.org/C22679943","wikidata":"https://www.wikidata.org/wiki/Q159375","display_name":"Standard deviation","level":2,"score":0.560318648815155},{"id":"https://openalex.org/C2776436953","wikidata":"https://www.wikidata.org/wiki/Q5163215","display_name":"Consistency (knowledge bases)","level":2,"score":0.5180345177650452},{"id":"https://openalex.org/C3018868096","wikidata":"https://www.wikidata.org/wiki/Q2693233","display_name":"Internal consistency","level":3,"score":0.4970989525318146},{"id":"https://openalex.org/C42812","wikidata":"https://www.wikidata.org/wiki/Q1082910","display_name":"Partition (number theory)","level":2,"score":0.48040416836738586},{"id":"https://openalex.org/C159744936","wikidata":"https://www.wikidata.org/wiki/Q1126730","display_name":"Spearman's rank correlation coefficient","level":2,"score":0.4360677897930145},{"id":"https://openalex.org/C2777267654","wikidata":"https://www.wikidata.org/wiki/Q3519023","display_name":"Test (biology)","level":2,"score":0.42930880188941956},{"id":"https://openalex.org/C18747219","wikidata":"https://www.wikidata.org/wiki/Q620994","display_name":"Standard error","level":2,"score":0.4131927192211151},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.2485976219177246},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.1890295147895813},{"id":"https://openalex.org/C171606756","wikidata":"https://www.wikidata.org/wiki/Q506132","display_name":"Psychometrics","level":2,"score":0.17831486463546753},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[{"descriptor_ui":"D000704","descriptor_name":"Analysis of Variance","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D001077","descriptor_name":"Aptitude Tests","qualifier_ui":"Q000706","qualifier_name":"statistics & numerical data","is_major_topic":true},{"descriptor_ui":"D004521","descriptor_name":"Educational Measurement","qualifier_ui":"Q000706","qualifier_name":"statistics & numerical data","is_major_topic":true},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D011581","descriptor_name":"Psychological Tests","qualifier_ui":"Q000706","qualifier_name":"statistics & numerical data","is_major_topic":true},{"descriptor_ui":"D011594","descriptor_name":"Psychometrics","qualifier_ui":"Q000706","qualifier_name":"statistics & numerical data","is_major_topic":true},{"descriptor_ui":"D015203","descriptor_name":"Reproducibility of Results","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D015233","descriptor_name":"Models, Statistical","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D015982","descriptor_name":"Bias","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D017408","descriptor_name":"Guidelines as Topic","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1037/1082-989x.8.1.102","doi":"https://doi.org/10.1037/1082-989x.8.1.102","is_oa":false,"landing_page_url":"https://doi.org/10.1037/1082-989x.8.1.102","pdf_url":null,"source":{"id":"https://openalex.org/S45419345","display_name":"Psychological Methods","issn_l":"1082-989X","issn":["1082-989X","1939-1463"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["abdc-b","anvur-class-a","anvur-scientific","cwts-core","dongbi-a","erih-plus","jufo-3","ki-jl-2","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320262","host_organization_name":"American Psychological Association","host_organization_lineage":["https://openalex.org/P4310320262"],"host_organization_lineage_names":["American Psychological Association"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Psychological Methods","raw_type":"journal-article"},{"id":"pmid:12741676","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/12741676","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Psychological methods","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":29,"referenced_works":["https://openalex.org/W588951533","https://openalex.org/W1593418318","https://openalex.org/W1972281227","https://openalex.org/W1978464924","https://openalex.org/W1992984099","https://openalex.org/W2001365529","https://openalex.org/W2004092199","https://openalex.org/W2021404251","https://openalex.org/W2026052996","https://openalex.org/W2028501718","https://openalex.org/W2035554728","https://openalex.org/W2059673217","https://openalex.org/W2063085086","https://openalex.org/W2084398551","https://openalex.org/W2088075110","https://openalex.org/W2093105136","https://openalex.org/W2159306398","https://openalex.org/W2163403362","https://openalex.org/W2166095333","https://openalex.org/W2167513493","https://openalex.org/W2319516097","https://openalex.org/W2905010601","https://openalex.org/W4238804190","https://openalex.org/W4239187201","https://openalex.org/W4244225390","https://openalex.org/W4247425252","https://openalex.org/W4251060671","https://openalex.org/W4251540613","https://openalex.org/W4254572470"],"related_works":["https://openalex.org/W1562488816","https://openalex.org/W1999115865","https://openalex.org/W2028501718","https://openalex.org/W2004092199","https://openalex.org/W2030402717","https://openalex.org/W2041981094","https://openalex.org/W2065149345","https://openalex.org/W2021404251","https://openalex.org/W2130648487","https://openalex.org/W1985561008"],"abstract_inverted_index":{"When":[0],"the":[1,16,24,32,35,40,49,55,72,95,104],"reliability":[2,50],"of":[3,15,31,51,103,106],"test":[4,17],"scores":[5],"must":[6],"be":[7,23,44],"estimated":[8],"by":[9],"an":[10],"internal":[11],"consistency":[12],"method,":[13],"partition":[14],"into":[18],"just":[19],"2":[20,73],"parts":[21,36,56,74],"may":[22,43],"only":[25],"way":[26],"to":[27,47],"maintain":[28],"content":[29],"equivalence":[30],"parts.":[33],"If":[34,54],"are":[37,63,75,80,109],"classically":[38],"parallel,":[39],"Spearman-Brown":[41],"formula":[42],"validly":[45],"used":[46],"estimate":[48],"total":[52],"scores.":[53],"differ":[57],"in":[58,82,101],"their":[59],"standard":[60,107],"deviations":[61,108],"but":[62],"tau":[64],"equivalent,":[65],"Cronbach's":[66],"alpha":[67],"is":[68,98],"appropriate.":[69,99],"However,":[70],"if":[71],"congeneric,":[76],"that":[77],"is,":[78],"they":[79,86],"unequal":[81],"functional":[83],"length":[84],"or":[85],"comprise":[87],"heterogeneous":[88],"item":[89],"types,":[90],"a":[91],"less":[92],"well-known":[93],"estimate,":[94],"Angoff-Feldt":[96,117],"coefficient,":[97],"Guidelines":[100],"terms":[102],"ratio":[105],"proposed":[110],"for":[111],"choosing":[112],"among":[113],"Spearman-Brown,":[114],"alpha,":[115],"and":[116],"coefficients.":[118]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":5},{"year":2014,"cited_by_count":5}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}
