Cohort analysis:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Elektronisch E-Book |
| Sprache: | English |
| Veröffentlicht: |
Thousand Oaks, Calif.
Sage Publications
c2005
|
| Ausgabe: | 2nd ed |
| Schriftenreihe: | Quantitative applications in the social sciences
no. 07-005 |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Beschreibung: | Includes bibliographical references (p. 55-56) and index Introduction: The Purposes of Cohort Analysis -- Definitions; Comparison of Cohort Analysis With Related Methods -- The Identification Problem --Strategies for estimating age, period and cohort effects: The Mason, Mason, Winsborough, and Poole Method -- The Nakamura Bayesian Method -- The Quest Continues -- Age-Period-Cohort-Characteristic (APCC) Models -- Informal Means of Assessing APC Effects -- An Illustration: A Cohort Analysis of Personal Happiness -- Use of cohort analysis fro understanding change -- Data requirements and availability: Data Requirements -- Data Availability -- The future Covering the basis of the cohort approach to studying aging social & cultural change, this volume also critiques several commonly used, but flawed, methods of cohort analysis, & illustrates appropriate methods with analyses of personal happiness & attitudes toward premarital & extramarital sexual relations |
| Beschreibung: | 1 Online-Ressource (vii, 61 p.) |
| ISBN: | 9781441630032 1441630031 9781412983662 1412983665 |
Internformat
MARC
| LEADER | 00000nmm a2200000zcb4500 | ||
|---|---|---|---|
| 001 | BV043128687 | ||
| 003 | DE-604 | ||
| 005 | 00000000000000.0 | ||
| 007 | cr|uuu---uuuuu | ||
| 008 | 151126s2005 |||| o||u| ||||||eng d | ||
| 020 | |a 9781441630032 |c electronic bk. |9 978-1-4416-3003-2 | ||
| 020 | |a 1441630031 |c electronic bk. |9 1-4416-3003-1 | ||
| 020 | |a 9781412983662 |c ebook |9 978-1-4129-8366-2 | ||
| 020 | |a 1412983665 |c ebook |9 1-4129-8366-5 | ||
| 035 | |a (OCoLC)498239027 | ||
| 035 | |a (DE-599)BVBBV043128687 | ||
| 040 | |a DE-604 |b ger |e aacr | ||
| 041 | 0 | |a eng | |
| 082 | 0 | |a 001.4/2 |2 22 | |
| 084 | |a CM 4000 |0 (DE-625)18951: |2 rvk | ||
| 084 | |a MB 2520 |0 (DE-625)122287: |2 rvk | ||
| 084 | |a MR 2100 |0 (DE-625)123488: |2 rvk | ||
| 084 | |a QH 200 |0 (DE-625)141539: |2 rvk | ||
| 084 | |a QH 234 |0 (DE-625)141549: |2 rvk | ||
| 084 | |a QH 240 |0 (DE-625)141556: |2 rvk | ||
| 100 | 1 | |a Glenn, Norval D. |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Cohort analysis |c Norval D. Glenn |
| 250 | |a 2nd ed | ||
| 264 | 1 | |a Thousand Oaks, Calif. |b Sage Publications |c c2005 | |
| 300 | |a 1 Online-Ressource (vii, 61 p.) | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b c |2 rdamedia | ||
| 338 | |b cr |2 rdacarrier | ||
| 490 | 0 | |a Quantitative applications in the social sciences |v no. 07-005 | |
| 500 | |a Includes bibliographical references (p. 55-56) and index | ||
| 500 | |a Introduction: The Purposes of Cohort Analysis -- Definitions; Comparison of Cohort Analysis With Related Methods -- The Identification Problem --Strategies for estimating age, period and cohort effects: The Mason, Mason, Winsborough, and Poole Method -- The Nakamura Bayesian Method -- The Quest Continues -- Age-Period-Cohort-Characteristic (APCC) Models -- Informal Means of Assessing APC Effects -- An Illustration: A Cohort Analysis of Personal Happiness -- Use of cohort analysis fro understanding change -- Data requirements and availability: Data Requirements -- Data Availability -- The future | ||
| 500 | |a Covering the basis of the cohort approach to studying aging social & cultural change, this volume also critiques several commonly used, but flawed, methods of cohort analysis, & illustrates appropriate methods with analyses of personal happiness & attitudes toward premarital & extramarital sexual relations | ||
| 650 | 7 | |a SCIENCE / Research & Methodology |2 bisacsh | |
| 650 | 7 | |a Cohortanalyse |2 gtt | |
| 650 | 7 | |a Kohortenanalyse |2 swd | |
| 650 | 7 | |a Cohort analysis |2 fast | |
| 650 | 4 | |a Cohort analysis | |
| 650 | 0 | 7 | |a Empirische Sozialforschung |0 (DE-588)4014606-6 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Analyse |0 (DE-588)4122795-5 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Datenanalyse |0 (DE-588)4123037-1 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Kohortenanalyse |0 (DE-588)4138256-0 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Gruppenverhalten |0 (DE-588)4130050-6 |2 gnd |9 rswk-swf |
| 689 | 0 | 0 | |a Gruppenverhalten |0 (DE-588)4130050-6 |D s |
| 689 | 0 | 1 | |a Analyse |0 (DE-588)4122795-5 |D s |
| 689 | 0 | |8 1\p |5 DE-604 | |
| 689 | 1 | 0 | |a Kohortenanalyse |0 (DE-588)4138256-0 |D s |
| 689 | 1 | |8 2\p |5 DE-604 | |
| 689 | 2 | 0 | |a Datenanalyse |0 (DE-588)4123037-1 |D s |
| 689 | 2 | |8 3\p |5 DE-604 | |
| 689 | 3 | 0 | |a Empirische Sozialforschung |0 (DE-588)4014606-6 |D s |
| 689 | 3 | |8 4\p |5 DE-604 | |
| 776 | 0 | 8 | |i Erscheint auch als |n Druck-Ausgabe, Paperback |z 0-7619-2215-6 |
| 776 | 0 | 8 | |i Erscheint auch als |n Druck-Ausgabe, Paperback |z 978-0-7619-2215-5 |
| 856 | 4 | 0 | |u http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=294612 |x Aggregator |3 Volltext |
| 912 | |a ZDB-4-EBA | ||
| 999 | |a oai:aleph.bib-bvb.de:BVB01-028552878 | ||
| 883 | 1 | |8 1\p |a cgwrk |d 20201028 |q DE-101 |u https://d-nb.info/provenance/plan#cgwrk | |
| 883 | 1 | |8 2\p |a cgwrk |d 20201028 |q DE-101 |u https://d-nb.info/provenance/plan#cgwrk | |
| 883 | 1 | |8 3\p |a cgwrk |d 20201028 |q DE-101 |u https://d-nb.info/provenance/plan#cgwrk | |
| 883 | 1 | |8 4\p |a cgwrk |d 20201028 |q DE-101 |u https://d-nb.info/provenance/plan#cgwrk | |
Datensatz im Suchindex
| _version_ | 1804175565769408512 |
|---|---|
| any_adam_object | |
| author | Glenn, Norval D. |
| author_facet | Glenn, Norval D. |
| author_role | aut |
| author_sort | Glenn, Norval D. |
| author_variant | n d g nd ndg |
| building | Verbundindex |
| bvnumber | BV043128687 |
| classification_rvk | CM 4000 MB 2520 MR 2100 QH 200 QH 234 QH 240 |
| collection | ZDB-4-EBA |
| ctrlnum | (OCoLC)498239027 (DE-599)BVBBV043128687 |
| dewey-full | 001.4/2 |
| dewey-hundreds | 000 - Computer science, information, general works |
| dewey-ones | 001 - Knowledge |
| dewey-raw | 001.4/2 |
| dewey-search | 001.4/2 |
| dewey-sort | 11.4 12 |
| dewey-tens | 000 - Computer science, information, general works |
| discipline | Allgemeines Politologie Soziologie Psychologie Wirtschaftswissenschaften |
| edition | 2nd ed |
| format | Electronic eBook |
| fullrecord | <?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>03869nmm a2200745zcb4500</leader><controlfield tag="001">BV043128687</controlfield><controlfield tag="003">DE-604</controlfield><controlfield tag="005">00000000000000.0</controlfield><controlfield tag="007">cr|uuu---uuuuu</controlfield><controlfield tag="008">151126s2005 |||| o||u| ||||||eng d</controlfield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">9781441630032</subfield><subfield code="c">electronic bk.</subfield><subfield code="9">978-1-4416-3003-2</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">1441630031</subfield><subfield code="c">electronic bk.</subfield><subfield code="9">1-4416-3003-1</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">9781412983662</subfield><subfield code="c">ebook</subfield><subfield code="9">978-1-4129-8366-2</subfield></datafield><datafield tag="020" ind1=" " ind2=" "><subfield code="a">1412983665</subfield><subfield code="c">ebook</subfield><subfield code="9">1-4129-8366-5</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(OCoLC)498239027</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-599)BVBBV043128687</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-604</subfield><subfield code="b">ger</subfield><subfield code="e">aacr</subfield></datafield><datafield tag="041" ind1="0" ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="082" ind1="0" ind2=" "><subfield code="a">001.4/2</subfield><subfield code="2">22</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">CM 4000</subfield><subfield code="0">(DE-625)18951:</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">MB 2520</subfield><subfield code="0">(DE-625)122287:</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">MR 2100</subfield><subfield code="0">(DE-625)123488:</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">QH 200</subfield><subfield code="0">(DE-625)141539:</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">QH 234</subfield><subfield code="0">(DE-625)141549:</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="084" ind1=" " ind2=" "><subfield code="a">QH 240</subfield><subfield code="0">(DE-625)141556:</subfield><subfield code="2">rvk</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Glenn, Norval D.</subfield><subfield code="e">Verfasser</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Cohort analysis</subfield><subfield code="c">Norval D. Glenn</subfield></datafield><datafield tag="250" ind1=" " ind2=" "><subfield code="a">2nd ed</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="a">Thousand Oaks, Calif.</subfield><subfield code="b">Sage Publications</subfield><subfield code="c">c2005</subfield></datafield><datafield tag="300" ind1=" " ind2=" "><subfield code="a">1 Online-Ressource (vii, 61 p.)</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="490" ind1="0" ind2=" "><subfield code="a">Quantitative applications in the social sciences</subfield><subfield code="v">no. 07-005</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Includes bibliographical references (p. 55-56) and index</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Introduction: The Purposes of Cohort Analysis -- Definitions; Comparison of Cohort Analysis With Related Methods -- The Identification Problem --Strategies for estimating age, period and cohort effects: The Mason, Mason, Winsborough, and Poole Method -- The Nakamura Bayesian Method -- The Quest Continues -- Age-Period-Cohort-Characteristic (APCC) Models -- Informal Means of Assessing APC Effects -- An Illustration: A Cohort Analysis of Personal Happiness -- Use of cohort analysis fro understanding change -- Data requirements and availability: Data Requirements -- Data Availability -- The future</subfield></datafield><datafield tag="500" ind1=" " ind2=" "><subfield code="a">Covering the basis of the cohort approach to studying aging social & cultural change, this volume also critiques several commonly used, but flawed, methods of cohort analysis, & illustrates appropriate methods with analyses of personal happiness & attitudes toward premarital & extramarital sexual relations</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">SCIENCE / Research & Methodology</subfield><subfield code="2">bisacsh</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Cohortanalyse</subfield><subfield code="2">gtt</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Kohortenanalyse</subfield><subfield code="2">swd</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Cohort analysis</subfield><subfield code="2">fast</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Cohort analysis</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Empirische Sozialforschung</subfield><subfield code="0">(DE-588)4014606-6</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Analyse</subfield><subfield code="0">(DE-588)4122795-5</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Datenanalyse</subfield><subfield code="0">(DE-588)4123037-1</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Kohortenanalyse</subfield><subfield code="0">(DE-588)4138256-0</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="650" ind1="0" ind2="7"><subfield code="a">Gruppenverhalten</subfield><subfield code="0">(DE-588)4130050-6</subfield><subfield code="2">gnd</subfield><subfield code="9">rswk-swf</subfield></datafield><datafield tag="689" ind1="0" ind2="0"><subfield code="a">Gruppenverhalten</subfield><subfield code="0">(DE-588)4130050-6</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="0" ind2="1"><subfield code="a">Analyse</subfield><subfield code="0">(DE-588)4122795-5</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="0" ind2=" "><subfield code="8">1\p</subfield><subfield code="5">DE-604</subfield></datafield><datafield tag="689" ind1="1" ind2="0"><subfield code="a">Kohortenanalyse</subfield><subfield code="0">(DE-588)4138256-0</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="1" ind2=" "><subfield code="8">2\p</subfield><subfield code="5">DE-604</subfield></datafield><datafield tag="689" ind1="2" ind2="0"><subfield code="a">Datenanalyse</subfield><subfield code="0">(DE-588)4123037-1</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="2" ind2=" "><subfield code="8">3\p</subfield><subfield code="5">DE-604</subfield></datafield><datafield tag="689" ind1="3" ind2="0"><subfield code="a">Empirische Sozialforschung</subfield><subfield code="0">(DE-588)4014606-6</subfield><subfield code="D">s</subfield></datafield><datafield tag="689" ind1="3" ind2=" "><subfield code="8">4\p</subfield><subfield code="5">DE-604</subfield></datafield><datafield tag="776" ind1="0" ind2="8"><subfield code="i">Erscheint auch als</subfield><subfield code="n">Druck-Ausgabe, Paperback</subfield><subfield code="z">0-7619-2215-6</subfield></datafield><datafield tag="776" ind1="0" ind2="8"><subfield code="i">Erscheint auch als</subfield><subfield code="n">Druck-Ausgabe, Paperback</subfield><subfield code="z">978-0-7619-2215-5</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=294612</subfield><subfield code="x">Aggregator</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-4-EBA</subfield></datafield><datafield tag="999" ind1=" " ind2=" "><subfield code="a">oai:aleph.bib-bvb.de:BVB01-028552878</subfield></datafield><datafield tag="883" ind1="1" ind2=" "><subfield code="8">1\p</subfield><subfield code="a">cgwrk</subfield><subfield code="d">20201028</subfield><subfield code="q">DE-101</subfield><subfield code="u">https://d-nb.info/provenance/plan#cgwrk</subfield></datafield><datafield tag="883" ind1="1" ind2=" "><subfield code="8">2\p</subfield><subfield code="a">cgwrk</subfield><subfield code="d">20201028</subfield><subfield code="q">DE-101</subfield><subfield code="u">https://d-nb.info/provenance/plan#cgwrk</subfield></datafield><datafield tag="883" ind1="1" ind2=" "><subfield code="8">3\p</subfield><subfield code="a">cgwrk</subfield><subfield code="d">20201028</subfield><subfield code="q">DE-101</subfield><subfield code="u">https://d-nb.info/provenance/plan#cgwrk</subfield></datafield><datafield tag="883" ind1="1" ind2=" "><subfield code="8">4\p</subfield><subfield code="a">cgwrk</subfield><subfield code="d">20201028</subfield><subfield code="q">DE-101</subfield><subfield code="u">https://d-nb.info/provenance/plan#cgwrk</subfield></datafield></record></collection> |
| id | DE-604.BV043128687 |
| illustrated | Not Illustrated |
| indexdate | 2024-07-10T07:18:19Z |
| institution | BVB |
| isbn | 9781441630032 1441630031 9781412983662 1412983665 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-028552878 |
| oclc_num | 498239027 |
| open_access_boolean | |
| physical | 1 Online-Ressource (vii, 61 p.) |
| psigel | ZDB-4-EBA |
| publishDate | 2005 |
| publishDateSearch | 2005 |
| publishDateSort | 2005 |
| publisher | Sage Publications |
| record_format | marc |
| series2 | Quantitative applications in the social sciences |
| spelling | Glenn, Norval D. Verfasser aut Cohort analysis Norval D. Glenn 2nd ed Thousand Oaks, Calif. Sage Publications c2005 1 Online-Ressource (vii, 61 p.) txt rdacontent c rdamedia cr rdacarrier Quantitative applications in the social sciences no. 07-005 Includes bibliographical references (p. 55-56) and index Introduction: The Purposes of Cohort Analysis -- Definitions; Comparison of Cohort Analysis With Related Methods -- The Identification Problem --Strategies for estimating age, period and cohort effects: The Mason, Mason, Winsborough, and Poole Method -- The Nakamura Bayesian Method -- The Quest Continues -- Age-Period-Cohort-Characteristic (APCC) Models -- Informal Means of Assessing APC Effects -- An Illustration: A Cohort Analysis of Personal Happiness -- Use of cohort analysis fro understanding change -- Data requirements and availability: Data Requirements -- Data Availability -- The future Covering the basis of the cohort approach to studying aging social & cultural change, this volume also critiques several commonly used, but flawed, methods of cohort analysis, & illustrates appropriate methods with analyses of personal happiness & attitudes toward premarital & extramarital sexual relations SCIENCE / Research & Methodology bisacsh Cohortanalyse gtt Kohortenanalyse swd Cohort analysis fast Cohort analysis Empirische Sozialforschung (DE-588)4014606-6 gnd rswk-swf Analyse (DE-588)4122795-5 gnd rswk-swf Datenanalyse (DE-588)4123037-1 gnd rswk-swf Kohortenanalyse (DE-588)4138256-0 gnd rswk-swf Gruppenverhalten (DE-588)4130050-6 gnd rswk-swf Gruppenverhalten (DE-588)4130050-6 s Analyse (DE-588)4122795-5 s 1\p DE-604 Kohortenanalyse (DE-588)4138256-0 s 2\p DE-604 Datenanalyse (DE-588)4123037-1 s 3\p DE-604 Empirische Sozialforschung (DE-588)4014606-6 s 4\p DE-604 Erscheint auch als Druck-Ausgabe, Paperback 0-7619-2215-6 Erscheint auch als Druck-Ausgabe, Paperback 978-0-7619-2215-5 http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=294612 Aggregator Volltext 1\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk 2\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk 3\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk 4\p cgwrk 20201028 DE-101 https://d-nb.info/provenance/plan#cgwrk |
| spellingShingle | Glenn, Norval D. Cohort analysis SCIENCE / Research & Methodology bisacsh Cohortanalyse gtt Kohortenanalyse swd Cohort analysis fast Cohort analysis Empirische Sozialforschung (DE-588)4014606-6 gnd Analyse (DE-588)4122795-5 gnd Datenanalyse (DE-588)4123037-1 gnd Kohortenanalyse (DE-588)4138256-0 gnd Gruppenverhalten (DE-588)4130050-6 gnd |
| subject_GND | (DE-588)4014606-6 (DE-588)4122795-5 (DE-588)4123037-1 (DE-588)4138256-0 (DE-588)4130050-6 |
| title | Cohort analysis |
| title_auth | Cohort analysis |
| title_exact_search | Cohort analysis |
| title_full | Cohort analysis Norval D. Glenn |
| title_fullStr | Cohort analysis Norval D. Glenn |
| title_full_unstemmed | Cohort analysis Norval D. Glenn |
| title_short | Cohort analysis |
| title_sort | cohort analysis |
| topic | SCIENCE / Research & Methodology bisacsh Cohortanalyse gtt Kohortenanalyse swd Cohort analysis fast Cohort analysis Empirische Sozialforschung (DE-588)4014606-6 gnd Analyse (DE-588)4122795-5 gnd Datenanalyse (DE-588)4123037-1 gnd Kohortenanalyse (DE-588)4138256-0 gnd Gruppenverhalten (DE-588)4130050-6 gnd |
| topic_facet | SCIENCE / Research & Methodology Cohortanalyse Kohortenanalyse Cohort analysis Empirische Sozialforschung Analyse Datenanalyse Gruppenverhalten |
| url | http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&db=nlabk&AN=294612 |
| work_keys_str_mv | AT glennnorvald cohortanalysis |