Factoring Handedness Data: II. Geschwinds Multidimensional Hypothesis
The challenge in this journal by Peters and Murphy to the validity of two published factor analyses of handedness data because of bimodality was dealt with in Part I by identifying measures to normalize the handedness item distributions. A new survey using Oldfields questionnaire format had 38 bell-...
Gespeichert in:
| Veröffentlicht in: | Cortex 1996-06, Vol.32 (2), p.375-381 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 381 |
|---|---|
| container_issue | 2 |
| container_start_page | 375 |
| container_title | Cortex |
| container_volume | 32 |
| creator | Messinger, Harley B. Messinger, Margaret I. |
| description | The challenge in this journal by Peters and Murphy to the validity of two published factor analyses of handedness data because of bimodality was dealt with in Part I by identifying measures to normalize the handedness item distributions.
A new survey using Oldfields questionnaire format had 38 bell-shaped (unimodal) handedness-item distributions and 11 that were only marginally bimodal out of the 55 items used in Geschwind's 1986 study. Yet they were still non-normal and the factor analysis was unsatisfactory; bimodality is not the only problem. By choosing a transformation for each item that was optimal as assessed by D'Agostino's K2 statistic, all but two items could be normalized. Seven factors were derived that showed high congruence between maximum likelihood and principal components extractions before and after varimax rotation. Geschwind's assertion that handedness is not unidimensional is therefore supported. |
| doi_str_mv | 10.1016/S0010-9452(96)80059-1 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_78350617</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0010945296800591</els_id><sourcerecordid>15672738</sourcerecordid><originalsourceid>FETCH-LOGICAL-c306t-9698ecb2f88afca029a4bb18d31e740382df7158d0072fc7f4c9d9e4b0ff8c593</originalsourceid><addsrcrecordid>eNqFkMtOwzAQRS0EKuXxCZWyQrAIjJ04ttkgVOhDArEA1pZjj8EoTUqcgvh70ofYsprFPXeudAgZUbikQIurZwAKqco5O1fFhQTgKqV7ZEiVyFJJge2T4R9ySI5i_ABgIDkfkIHs-YJlQ3I_MbZr2lC_JTNTO3Q1xpjcmc5cJ_P5ZTLFaN-_Q-1i8riquuDCAusYmtpUyexn2XTvGEM8IQfeVBFPd_eYvE7uX8az9OFpOh_fPqQ2g6JLVaEk2pJ5KY23BpgyeVlS6TKKIodMMucF5dIBCOat8LlVTmFegvfScpUdk7Pt32XbfK4wdnoRosWqMjU2q6iFzDgUVPwLUl4IJjLZg3wL2raJsUWvl21YmPZHU9Brz3rjWa8lalXojWdN-95oN7AqF-j-WjuxfX6zzbHX8RWw1dEGrC260KLttGvCPwu_J_mMXw</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>15672738</pqid></control><display><type>article</type><title>Factoring Handedness Data: II. Geschwinds Multidimensional Hypothesis</title><source>MEDLINE</source><source>Access via ScienceDirect (Elsevier)</source><creator>Messinger, Harley B. ; Messinger, Margaret I.</creator><creatorcontrib>Messinger, Harley B. ; Messinger, Margaret I.</creatorcontrib><description>The challenge in this journal by Peters and Murphy to the validity of two published factor analyses of handedness data because of bimodality was dealt with in Part I by identifying measures to normalize the handedness item distributions.
A new survey using Oldfields questionnaire format had 38 bell-shaped (unimodal) handedness-item distributions and 11 that were only marginally bimodal out of the 55 items used in Geschwind's 1986 study. Yet they were still non-normal and the factor analysis was unsatisfactory; bimodality is not the only problem. By choosing a transformation for each item that was optimal as assessed by D'Agostino's K2 statistic, all but two items could be normalized. Seven factors were derived that showed high congruence between maximum likelihood and principal components extractions before and after varimax rotation. Geschwind's assertion that handedness is not unidimensional is therefore supported.</description><identifier>ISSN: 0010-9452</identifier><identifier>EISSN: 1973-8102</identifier><identifier>DOI: 10.1016/S0010-9452(96)80059-1</identifier><identifier>PMID: 8800623</identifier><language>eng</language><publisher>Italy: Elsevier Ltd</publisher><subject>Analysis of Variance ; Factor Analysis, Statistical ; Functional Laterality ; Humans ; Multivariate Analysis ; Surveys and Questionnaires</subject><ispartof>Cortex, 1996-06, Vol.32 (2), p.375-381</ispartof><rights>1996 Masson S.p.A.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c306t-9698ecb2f88afca029a4bb18d31e740382df7158d0072fc7f4c9d9e4b0ff8c593</citedby><cites>FETCH-LOGICAL-c306t-9698ecb2f88afca029a4bb18d31e740382df7158d0072fc7f4c9d9e4b0ff8c593</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0010-9452(96)80059-1$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,781,785,3551,27928,27929,45999</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/8800623$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Messinger, Harley B.</creatorcontrib><creatorcontrib>Messinger, Margaret I.</creatorcontrib><title>Factoring Handedness Data: II. Geschwinds Multidimensional Hypothesis</title><title>Cortex</title><addtitle>Cortex</addtitle><description>The challenge in this journal by Peters and Murphy to the validity of two published factor analyses of handedness data because of bimodality was dealt with in Part I by identifying measures to normalize the handedness item distributions.
A new survey using Oldfields questionnaire format had 38 bell-shaped (unimodal) handedness-item distributions and 11 that were only marginally bimodal out of the 55 items used in Geschwind's 1986 study. Yet they were still non-normal and the factor analysis was unsatisfactory; bimodality is not the only problem. By choosing a transformation for each item that was optimal as assessed by D'Agostino's K2 statistic, all but two items could be normalized. Seven factors were derived that showed high congruence between maximum likelihood and principal components extractions before and after varimax rotation. Geschwind's assertion that handedness is not unidimensional is therefore supported.</description><subject>Analysis of Variance</subject><subject>Factor Analysis, Statistical</subject><subject>Functional Laterality</subject><subject>Humans</subject><subject>Multivariate Analysis</subject><subject>Surveys and Questionnaires</subject><issn>0010-9452</issn><issn>1973-8102</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkMtOwzAQRS0EKuXxCZWyQrAIjJ04ttkgVOhDArEA1pZjj8EoTUqcgvh70ofYsprFPXeudAgZUbikQIurZwAKqco5O1fFhQTgKqV7ZEiVyFJJge2T4R9ySI5i_ABgIDkfkIHs-YJlQ3I_MbZr2lC_JTNTO3Q1xpjcmc5cJ_P5ZTLFaN-_Q-1i8riquuDCAusYmtpUyexn2XTvGEM8IQfeVBFPd_eYvE7uX8az9OFpOh_fPqQ2g6JLVaEk2pJ5KY23BpgyeVlS6TKKIodMMucF5dIBCOat8LlVTmFegvfScpUdk7Pt32XbfK4wdnoRosWqMjU2q6iFzDgUVPwLUl4IJjLZg3wL2raJsUWvl21YmPZHU9Brz3rjWa8lalXojWdN-95oN7AqF-j-WjuxfX6zzbHX8RWw1dEGrC260KLttGvCPwu_J_mMXw</recordid><startdate>199606</startdate><enddate>199606</enddate><creator>Messinger, Harley B.</creator><creator>Messinger, Margaret I.</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TK</scope><scope>7X8</scope><scope>8BM</scope></search><sort><creationdate>199606</creationdate><title>Factoring Handedness Data: II. Geschwinds Multidimensional Hypothesis</title><author>Messinger, Harley B. ; Messinger, Margaret I.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c306t-9698ecb2f88afca029a4bb18d31e740382df7158d0072fc7f4c9d9e4b0ff8c593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Analysis of Variance</topic><topic>Factor Analysis, Statistical</topic><topic>Functional Laterality</topic><topic>Humans</topic><topic>Multivariate Analysis</topic><topic>Surveys and Questionnaires</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Messinger, Harley B.</creatorcontrib><creatorcontrib>Messinger, Margaret I.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Neurosciences Abstracts</collection><collection>MEDLINE - Academic</collection><collection>ComDisDome</collection><jtitle>Cortex</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Messinger, Harley B.</au><au>Messinger, Margaret I.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Factoring Handedness Data: II. Geschwinds Multidimensional Hypothesis</atitle><jtitle>Cortex</jtitle><addtitle>Cortex</addtitle><date>1996-06</date><risdate>1996</risdate><volume>32</volume><issue>2</issue><spage>375</spage><epage>381</epage><pages>375-381</pages><issn>0010-9452</issn><eissn>1973-8102</eissn><abstract>The challenge in this journal by Peters and Murphy to the validity of two published factor analyses of handedness data because of bimodality was dealt with in Part I by identifying measures to normalize the handedness item distributions.
A new survey using Oldfields questionnaire format had 38 bell-shaped (unimodal) handedness-item distributions and 11 that were only marginally bimodal out of the 55 items used in Geschwind's 1986 study. Yet they were still non-normal and the factor analysis was unsatisfactory; bimodality is not the only problem. By choosing a transformation for each item that was optimal as assessed by D'Agostino's K2 statistic, all but two items could be normalized. Seven factors were derived that showed high congruence between maximum likelihood and principal components extractions before and after varimax rotation. Geschwind's assertion that handedness is not unidimensional is therefore supported.</abstract><cop>Italy</cop><pub>Elsevier Ltd</pub><pmid>8800623</pmid><doi>10.1016/S0010-9452(96)80059-1</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0010-9452 |
| ispartof | Cortex, 1996-06, Vol.32 (2), p.375-381 |
| issn | 0010-9452 1973-8102 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_78350617 |
| source | MEDLINE; Access via ScienceDirect (Elsevier) |
| subjects | Analysis of Variance Factor Analysis, Statistical Functional Laterality Humans Multivariate Analysis Surveys and Questionnaires |
| title | Factoring Handedness Data: II. Geschwinds Multidimensional Hypothesis |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-16T13%3A58%3A19IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Factoring%20Handedness%20Data:%20II.%20Geschwinds%20Multidimensional%20Hypothesis&rft.jtitle=Cortex&rft.au=Messinger,%20Harley%20B.&rft.date=1996-06&rft.volume=32&rft.issue=2&rft.spage=375&rft.epage=381&rft.pages=375-381&rft.issn=0010-9452&rft.eissn=1973-8102&rft_id=info:doi/10.1016/S0010-9452(96)80059-1&rft_dat=%3Cproquest_cross%3E15672738%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=15672738&rft_id=info:pmid/8800623&rft_els_id=S0010945296800591&rfr_iscdi=true |