{"id":"https://openalex.org/W1513420263","doi":"https://doi.org/10.1002/9780470740781.ch2","title":"Populations, Samples, and Study Design","display_name":"Populations, Samples, and Study Design","publication_year":2007,"publication_date":"2007-10-24","ids":{"openalex":"https://openalex.org/W1513420263","doi":"https://doi.org/10.1002/9780470740781.ch2","mag":"1513420263"},"language":"en","primary_location":{"id":"doi:10.1002/9780470740781.ch2","doi":"https://doi.org/10.1002/9780470740781.ch2","is_oa":false,"landing_page_url":"https://doi.org/10.1002/9780470740781.ch2","pdf_url":null,"source":{"id":"https://openalex.org/S4306464293","display_name":"Wiley eBooks","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"ebook platform"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Basic Biostatistics for Geneticists and Epidemiologists","raw_type":"other"},"volume":{"id":"https://openalex.org/W4240192259","display_name":"Basic Biostatistics for Geneticists and Epidemiologists"},"type":"other","indexed_in":["crossref"],"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/A5008471831","display_name":"Robert C. Elston","orcid":"https://orcid.org/0000-0002-4743-8531","observed_orcids":["https://orcid.org/0000-0002-4743-8531"]},"institutions":[{"id":"https://openalex.org/I58956616","display_name":"Case Western Reserve University","ror":"https://ror.org/051fd9666","country_code":"US","type":"education","lineage":["https://openalex.org/I58956616"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Robert C. Elston","raw_affiliation_strings":["Department of Epidemiology and Biostatistics, Case Western Reserve University, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Epidemiology and Biostatistics, Case Western Reserve University, USA","institution_ids":["https://openalex.org/I58956616"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5004551947","display_name":"William D. Johnson","orcid":"https://orcid.org/0000-0002-3823-4094","observed_orcids":["https://orcid.org/0000-0002-3823-4094"]},"institutions":[{"id":"https://openalex.org/I103990859","display_name":"Pennington Biomedical Research Center","ror":"https://ror.org/040cnym54","country_code":"US","type":"facility","lineage":["https://openalex.org/I103990859","https://openalex.org/I121820613"]},{"id":"https://openalex.org/I107341208","display_name":"Louisiana State University System","ror":"https://ror.org/022gnbj15","country_code":"US","type":"education","lineage":["https://openalex.org/I107341208"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"William D. Johnson","raw_affiliation_strings":["Pennington Biomedical Research Center, Louisiana State University System, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Pennington Biomedical Research Center, Louisiana State University System, USA","institution_ids":["https://openalex.org/I103990859","https://openalex.org/I107341208"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"17","last_page":"42"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T14374","display_name":"Statistical Methods in Epidemiology","score":0.4961000084877014,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T14374","display_name":"Statistical Methods in Epidemiology","score":0.4961000084877014,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11798","display_name":"Optimal Experimental Design Methods","score":0.10459999740123749,"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/T13030","display_name":"Survey Sampling and Estimation Techniques","score":0.06949999928474426,"subfield":{"id":"https://openalex.org/subfields/2613","display_name":"Statistics and Probability"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/study-design","display_name":"research design","score":0.6439999938011169},{"id":"https://openalex.org/keywords/population","display_name":"population","score":0.7749999761581421},{"id":"https://openalex.org/keywords/target-population","display_name":"target population","score":0.6480000019073486},{"id":"https://openalex.org/keywords/curriculum-units","display_name":"curriculum units","score":0.9819999933242798},{"id":"https://openalex.org/keywords/probability-sampling","display_name":"probability sampling","score":0.8999999761581421},{"id":"https://openalex.org/keywords/randomization","display_name":"randomization","score":0.9980000257492065},{"id":"https://openalex.org/keywords/observational-studies","display_name":"observational studies","score":0.972000002861023},{"id":"https://openalex.org/keywords/family-studies","display_name":"family studies","score":0.9639999866485596},{"id":"https://openalex.org/keywords/experimental-study","display_name":"experimental study","score":0.9800000190734863},{"id":"https://openalex.org/keywords/quasi-experimental-design","display_name":"quasi-experimental design","score":0.9539999961853027},{"id":"https://openalex.org/keywords/causal-inference","display_name":"causal inference","score":0.8119999766349792}],"concepts":[{"id":"https://openalex.org/C23131810","wikidata":"https://www.wikidata.org/wiki/Q818574","display_name":"Observational study","level":2,"score":0.715438723564148},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.5012896060943604},{"id":"https://openalex.org/C554936623","wikidata":"https://www.wikidata.org/wiki/Q199657","display_name":"Reading (process)","level":2,"score":0.4851427972316742},{"id":"https://openalex.org/C2779318504","wikidata":"https://www.wikidata.org/wiki/Q1438035","display_name":"Research design","level":2,"score":0.4617152214050293},{"id":"https://openalex.org/C204243189","wikidata":"https://www.wikidata.org/wiki/Q1363085","display_name":"Randomization","level":3,"score":0.45563429594039917},{"id":"https://openalex.org/C149782125","wikidata":"https://www.wikidata.org/wiki/Q160039","display_name":"Econometrics","level":1,"score":0.3951360285282135},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.34386011958122253},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.19831529259681702},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.1582328975200653},{"id":"https://openalex.org/C60644358","wikidata":"https://www.wikidata.org/wiki/Q128570","display_name":"Bioinformatics","level":1,"score":0.12843447923660278},{"id":"https://openalex.org/C535046627","wikidata":"https://www.wikidata.org/wiki/Q30612","display_name":"Clinical trial","level":2,"score":0.06639713048934937},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1002/9780470740781.ch2","doi":"https://doi.org/10.1002/9780470740781.ch2","is_oa":false,"landing_page_url":"https://doi.org/10.1002/9780470740781.ch2","pdf_url":null,"source":{"id":"https://openalex.org/S4306464293","display_name":"Wiley eBooks","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"ebook platform"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Basic Biostatistics for Geneticists and Epidemiologists","raw_type":"other"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2578257856","https://openalex.org/W1591881256","https://openalex.org/W2483398316","https://openalex.org/W1579192215","https://openalex.org/W4404378843","https://openalex.org/W2496854439","https://openalex.org/W3003362465","https://openalex.org/W1008302457","https://openalex.org/W1605862542","https://openalex.org/W1826903353"],"abstract_inverted_index":{"This":[0],"chapter":[1],"contains":[2],"sections":[3],"titled:":[4],"The":[5],"Study":[6,15],"of":[7],"Cause":[8],"and":[9,14,19],"Effect":[10],"Populations,":[11],"Target":[12],"Populations":[13],"Units":[16],"Probability":[17],"Samples":[18],"Randomization":[20],"Observational":[21],"Studies":[22,24,26,28],"Family":[23],"Experimental":[25],"Quasi-Experimental":[27],"Summary":[29],"Further":[30],"Reading":[31],"Problems":[32]},"counts_by_year":[{"year":2015,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}