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[{"key": "dc.contributor.advisor", "value": "K\u00e4rkk\u00e4inen, Salme", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.advisor", "value": "Aumanen, Viivi-Maija", "language": "", "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "H\u00e4stbacka, Heli", "language": "", "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2021-06-21T07:01:23Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2021-06-21T07:01:23Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2021", "language": "", "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/76730", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "T\u00e4m\u00e4n tutkielman tarkoituksena on mallintaa Jyv\u00e4skyl\u00e4n yliopiston matemaattis-luonnontieteellisen tiedekunnan opiskelijoiden valmistumisaikoja ryhmittelyanalyysin ja elinaika-analyysin keinoin. Valmistumisaikana tarkastellaan aikaa opintojen aloittamisesta luonnontieteiden kandidaatiksi valmistumiseen saakka. Valmistumisaikaa pyrit\u00e4\u00e4n selitt\u00e4m\u00e4\u00e4n ylioppilasarvosanojen ja muiden hakuvaiheen muuttujien avulla.\n\nAineistona tarkastellaan Jyv\u00e4skyl\u00e4n yliopiston matemaattis-luonnontieteellisess\u00e4 tiedekunnassa vuosina 2015-2020 aloittaneiden opiskelijoiden tietoja. Aineisto koostuu kahdesta osa-aineistosta: hakuvaiheen aineistosta ja opiskeluvaiheen aineistosta. Hakuvaiheen aineistosta k\u00e4y ilmi muiden muassa ylioppilasarvosanat, valintajono sek\u00e4 hakukohde. Opiskeluvaiheen aineistossa on tietoja esimerkiksi opiskelijan laitoksesta, opintopistekertym\u00e4st\u00e4, l\u00e4sn\u00e4olosta sek\u00e4 kandidaatiksi valmistumisen ajankohdasta. Edell\u00e4 mainittujen tietojen perusteella muodostettiin uusi muuttuja, joka kertoo l\u00e4sn\u00e4ololukukausien m\u00e4\u00e4r\u00e4n opintojen aloittamisesta kandidaatiksi valmistumiseen saakka. Tavoiteaika kandidaatin tutkinnolle matemaattis-luonnontieteellisess\u00e4 tiedekunnassa on kolme lukuvuotta eli kuusi lukukautta.\n\nTutkimusmenetelmin\u00e4 ovat ryhmittelymenetelmist\u00e4 k:n keskiarvon ryhmittely sek\u00e4 elinaika-analyysin menetelmist\u00e4 Coxin regressiomalli. Perinteisen Coxin mallin sovittaminen osoittautui haastavaksi ylioppilasarvosanoissa ilmenev\u00e4n ilmi\u00f6st\u00e4 johtuvan puuttuvan tiedon vuoksi. N\u00e4in ollen aineistoon sovellettiin ryhmittelyanalyysi\u00e4 ylioppilasarvosanatiedon tiivist\u00e4miseksi. Ryhmittelyyn valikoitiin ne ylioppilasaineet, joissa kirjoittaneiden osuus aineistossa on v\u00e4hint\u00e4\u00e4n 10 prosenttia. Muodostettuja ryhmi\u00e4 k\u00e4ytettiin Coxin regressiomallissa valmistumisajan selitt\u00e4jin\u00e4.\n\nTutkimustuloksista k\u00e4y ilmi, ett\u00e4 ylioppilasarvosanojen perusteella muodostettujen ryhmien v\u00e4lill\u00e4 on eroja kandidaatiksi valmistumisessa. Ryhm\u00e4, jossa on korkeat ylioppilasarvosanojen keskiarvot \u00e4idinkielest\u00e4, biologiasta ja maantieteest\u00e4, valmistuu ryhmien v\u00e4lisess\u00e4 vertailussa nopeimmin. Puolestaan ryhm\u00e4, jossa on matalin keskiarvo \u00e4idinkielest\u00e4 ja korkea keskiarvo matematiikasta, valmistuu hitaimmin. Ryhm\u00e4mallia parannettiin lis\u00e4\u00e4m\u00e4ll\u00e4 malliin tieto valintajonosta. Mallin tuloksista ilmeni, ett\u00e4 suoravalinnan kautta tulleet opiskelijat valmistuvat hitaimmin. Yhteishaun ulkopuolelta tulleiden opiskelijoiden valmistuminen on puolestaan kaikista nopeinta suhteessa suoravalittuihin opiskelijoihin.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by Paivi Vuorio (paelvuor@jyu.fi) on 2021-06-21T07:01:23Z\nNo. of bitstreams: 0", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2021-06-21T07:01:23Z (GMT). No. of bitstreams: 0\n Previous issue date: 2021", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "46", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "fin", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "Coxin regressiomalli", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "kandidaatiksi valmistuminen", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "k:n keskiarvon ryhmittely", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "l\u00e4sn\u00e4ololukukaudet", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "ylioppilasarvosanat", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "valintajono", "language": "", "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Valmistumisaikaan vaikuttavat tekij\u00e4t : elinaika- ja ryhmittelyanalyysin sovellus", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-202106213924", "language": "", "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Matematiikan ja tilastotieteen laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Mathematics and Statistics", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", 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