{"id":"https://openalex.org/W2083490291","doi":"https://doi.org/10.1145/1067445.1067473","title":"Novice Java programmers' conceptions of \"object\" and \"class\", and variation theory","display_name":"Novice Java programmers' conceptions of \"object\" and \"class\", and variation theory","publication_year":2005,"publication_date":"2005-06-27","ids":{"openalex":"https://openalex.org/W2083490291","doi":"https://doi.org/10.1145/1067445.1067473","mag":"2083490291"},"language":"en","primary_location":{"id":"doi:10.1145/1067445.1067473","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1067445.1067473","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 10th annual SIGCSE conference on Innovation and technology in computer science education","raw_type":"proceedings-article"},"type":"article","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/A5090352832","display_name":"Anna Eckerdal","orcid":"https://orcid.org/0000-0002-6588-1246"},"institutions":[{"id":"https://openalex.org/I123387679","display_name":"Uppsala University","ror":"https://ror.org/048a87296","country_code":"SE","type":"education","lineage":["https://openalex.org/I123387679"]}],"countries":["SE"],"is_corresponding":true,"raw_author_name":"Anna Eckerdal","raw_affiliation_strings":["Uppsala University, Uppsala, Sweden","Uppsala University , Uppsala, Sweden"],"affiliations":[{"raw_affiliation_string":"Uppsala University, Uppsala, Sweden","institution_ids":["https://openalex.org/I123387679"]},{"raw_affiliation_string":"Uppsala University , Uppsala, Sweden","institution_ids":["https://openalex.org/I123387679"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5056396599","display_name":"Michael Thun\u00e9","orcid":null},"institutions":[{"id":"https://openalex.org/I123387679","display_name":"Uppsala University","ror":"https://ror.org/048a87296","country_code":"SE","type":"education","lineage":["https://openalex.org/I123387679"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Michael Thun\u00e9","raw_affiliation_strings":["Uppsala University, Uppsala, Sweden","Uppsala University , Uppsala, Sweden"],"affiliations":[{"raw_affiliation_string":"Uppsala University, Uppsala, Sweden","institution_ids":["https://openalex.org/I123387679"]},{"raw_affiliation_string":"Uppsala University , Uppsala, Sweden","institution_ids":["https://openalex.org/I123387679"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5090352832"],"corresponding_institution_ids":["https://openalex.org/I123387679"],"apc_list":null,"apc_paid":null,"fwci":23.9788,"has_fulltext":false,"cited_by_count":161,"citation_normalized_percentile":{"value":0.99575522,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":100},"biblio":{"volume":null,"issue":null,"first_page":"89","last_page":"93"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10533","display_name":"Teaching and Learning Programming","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/1706","display_name":"Computer Science Applications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10533","display_name":"Teaching and Learning Programming","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/1706","display_name":"Computer Science Applications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10636","display_name":"Innovative Teaching and Learning Methods","score":0.9815999865531921,"subfield":{"id":"https://openalex.org/subfields/3204","display_name":"Developmental and Educational Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10731","display_name":"Educational Games and Gamification","score":0.9803000092506409,"subfield":{"id":"https://openalex.org/subfields/3204","display_name":"Developmental and Educational Psychology"},"field":{"id":"https://openalex.org/fields/32","display_name":"Psychology"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/java","display_name":"Java","score":0.8135780096054077},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7887119054794312},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.7406474351882935},{"id":"https://openalex.org/keywords/class","display_name":"Class (philosophy)","score":0.6970817446708679},{"id":"https://openalex.org/keywords/variation","display_name":"Variation (astronomy)","score":0.6205742359161377},{"id":"https://openalex.org/keywords/object-oriented-programming","display_name":"Object-oriented programming","score":0.5119775533676147},{"id":"https://openalex.org/keywords/object","display_name":"Object (grammar)","score":0.4850591719150543},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.36931800842285156},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.22121986746788025}],"concepts":[{"id":"https://openalex.org/C548217200","wikidata":"https://www.wikidata.org/wiki/Q251","display_name":"Java","level":2,"score":0.8135780096054077},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7887119054794312},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.7406474351882935},{"id":"https://openalex.org/C2777212361","wikidata":"https://www.wikidata.org/wiki/Q5127848","display_name":"Class (philosophy)","level":2,"score":0.6970817446708679},{"id":"https://openalex.org/C2778334786","wikidata":"https://www.wikidata.org/wiki/Q1586270","display_name":"Variation (astronomy)","level":2,"score":0.6205742359161377},{"id":"https://openalex.org/C73752529","wikidata":"https://www.wikidata.org/wiki/Q79872","display_name":"Object-oriented programming","level":2,"score":0.5119775533676147},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.4850591719150543},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.36931800842285156},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.22121986746788025},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1067445.1067473","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1067445.1067473","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 10th annual SIGCSE conference on Innovation and technology in computer science education","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education","score":0.8700000047683716}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W6269980","https://openalex.org/W207823173","https://openalex.org/W1489226807","https://openalex.org/W1495624430","https://openalex.org/W1971075638","https://openalex.org/W2031453904","https://openalex.org/W2130719656","https://openalex.org/W2155470707","https://openalex.org/W2161825580","https://openalex.org/W2171148471","https://openalex.org/W2941631585","https://openalex.org/W3006150852","https://openalex.org/W6608424756","https://openalex.org/W6684208002"],"related_works":["https://openalex.org/W2372895414","https://openalex.org/W3018419493","https://openalex.org/W4309922696","https://openalex.org/W2364304713","https://openalex.org/W1533274719","https://openalex.org/W1526385399","https://openalex.org/W1482645738","https://openalex.org/W1604670777","https://openalex.org/W2105097921","https://openalex.org/W2528467228"],"abstract_inverted_index":{"Problems":[0],"with":[1,58,66],"understanding":[2,41,74,114],"concepts,":[3],"so":[4],"called":[5],"misconceptions,":[6],"have":[7],"been":[8],"investigated":[9],"and":[10,47,79],"reported":[11],"in":[12,108],"a":[13,23,39,59,64,83,112],"number":[14],"of":[15,33,42,53,75,115],"studies":[16],"regarding":[17],"object-oriented":[18,29],"programming":[19,25],"[4],":[20],"[3].":[21],"In":[22],"first":[24,67],"course":[26],"using":[27],"an":[28,50,73],"language,":[30],"it":[31],"is":[32],"great":[34],"importance":[35],"that":[36],"students":[37,101],"get":[38],"good":[40],"central":[43],"concepts":[44,77],"like":[45],"object":[46,78],"class":[48,80],"at":[49],"early":[51],"stage":[52],"their":[54],"education.":[55],"We":[56],"have,":[57],"phenomenographic":[60],"research":[61],"approach,":[62],"performed":[63],"study":[65],"year":[68],"university":[69],"students,":[70],"investigating":[71],"what":[72,99],"the":[76,100],"includes":[81],"from":[82],"student":[84],"perspective.":[85],"By":[86],"applying":[87],"variation":[88],"theory":[89],"[8]":[90],"to":[91,97,103,106,110],"our":[92],"results":[93],"we":[94],"are":[95],"able":[96,105],"pin-point":[98],"need":[102],"be":[104],"discern":[107],"order":[109],"gain":[111],"rich":[113],"these":[116],"concepts.":[117]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":6},{"year":2019,"cited_by_count":38},{"year":2018,"cited_by_count":6},{"year":2017,"cited_by_count":6},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":8},{"year":2014,"cited_by_count":8},{"year":2013,"cited_by_count":10},{"year":2012,"cited_by_count":6}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}