Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2076786601', 'doi': 'https://doi.org/10.2307/1161707', 'title': 'International Study of Achievement in Mathematics', 'display_name': 'International Study of Achievement in Mathematics', 'publication_year': 1968, 'publication_date': '1968-01-01', 'ids': {'openalex': 'https://openalex.org/W2076786601', 'doi': 'https://doi.org/10.2307/1161707', 'mag': '2076786601'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.2307/1161707', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S185455288', 'display_name': 'American Educational Research Journal', 'issn_l': '0002-8312', 'issn': ['0002-8312', '1935-1011'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320017', 'host_organization_name': 'SAGE Publishing', 'host_organization_lineage': ['https://openalex.org/P4310320017'], 'host_organization_lineage_names': ['SAGE Publishing'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5018119150', 'display_name': 'William E. Coffman', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'William E. Coffman', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5046662588', 'display_name': 'Thorsten Husén', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Thorsten Husén', 'raw_affiliation_strings': [], 'affiliations': []}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5083389568', 'display_name': 'Torsten Husén', 'orcid': None}, 'institutions': [], 'countries': [], 'is_corresponding': False, 'raw_author_name': 'Thorsten Husen', 'raw_affiliation_strings': [], 'affiliations': []}], 'institution_assertions': [], 'countries_distinct_count': 0, 'institutions_distinct_count': 0, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 54.364, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 314, 'citation_normalized_percentile': {'value': 0.997085, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 99, 'max': 100}, 'biblio': {'volume': '5', 'issue': '1', 'first_page': '113', 'last_page': '113'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10130', 'display_name': 'Pedagogical Content Knowledge in Education', 'score': 0.7249, 'subfield': {'id': 'https://openalex.org/subfields/3304', 'display_name': 'Education'}, 'field': {'id': 'https://openalex.org/fields/33', 'display_name': 'Social Sciences'}, 'domain': {'id': 'https://openalex.org/domains/2', 'display_name': 'Social Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10130', 'display_name': 'Pedagogical Content Knowledge in Education', 'score': 0.7249, 'subfield': {'id': 'https://openalex.org/subfields/3304', 'display_name': 'Education'}, 'field': {'id': 'https://openalex.org/fields/33', 'display_name': 'Social Sciences'}, 'domain': {'id': 'https://openalex.org/domains/2', 'display_name': 'Social Sciences'}}, {'id': 'https://openalex.org/T11345', 'display_name': 'Development of Numerical Cognition and Mathematics Abilities', 'score': 0.6866, '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/mathematical-achievement', 'display_name': 'Mathematical Achievement', 'score': 0.796688}, {'id': 'https://openalex.org/keywords/mathematics-education', 'display_name': 'Mathematics Education', 'score': 0.677546}, {'id': 'https://openalex.org/keywords/mathematics-instruction', 'display_name': 'Mathematics Instruction', 'score': 0.656033}, {'id': 'https://openalex.org/keywords/educational-technology', 'display_name': 'Educational Technology', 'score': 0.543703}, {'id': 'https://openalex.org/keywords/lesson-study', 'display_name': 'Lesson Study', 'score': 0.542992}], 'concepts': [{'id': 'https://openalex.org/C145420912', 'wikidata': 'https://www.wikidata.org/wiki/Q853077', 'display_name': 'Mathematics education', 'level': 1, 'score': 0.67651343}, {'id': 'https://openalex.org/C2781206393', 'wikidata': 'https://www.wikidata.org/wiki/Q2748419', 'display_name': 'Academic achievement', 'level': 2, 'score': 0.5264918}, {'id': 'https://openalex.org/C81369262', 'wikidata': 'https://www.wikidata.org/wiki/Q6165531', 'display_name': 'Achievement test', 'level': 3, 'score': 0.4110811}, {'id': 'https://openalex.org/C15744967', 'wikidata': 'https://www.wikidata.org/wiki/Q9418', 'display_name': 'Psychology', 'level': 0, 'score': 0.34659833}, {'id': 'https://openalex.org/C33923547', 'wikidata': 'https://www.wikidata.org/wiki/Q395', 'display_name': 'Mathematics', 'level': 0, 'score': 0.3286605}, {'id': 'https://openalex.org/C203151758', 'wikidata': 'https://www.wikidata.org/wiki/Q3244907', 'display_name': 'Standardized test', 'level': 2, 'score': 0.19821224}], 'mesh': [], 'locations_count': 1, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.2307/1161707', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S185455288', 'display_name': 'American Educational Research Journal', 'issn_l': '0002-8312', 'issn': ['0002-8312', '1935-1011'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320017', 'host_organization_name': 'SAGE Publishing', 'host_organization_lineage': ['https://openalex.org/P4310320017'], 'host_organization_lineage_names': ['SAGE Publishing'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'display_name': 'Quality education', 'score': 0.43, 'id': 'https://metadata.un.org/sdg/4'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 0, 'referenced_works': [], 'related_works': ['https://openalex.org/W392414571', 'https://openalex.org/W288212059', 'https://openalex.org/W2792085915', 'https://openalex.org/W2611601459', 'https://openalex.org/W2605939825', 'https://openalex.org/W2333097382', 'https://openalex.org/W2101446412', 'https://openalex.org/W1978283463', 'https://openalex.org/W1969099294', 'https://openalex.org/W120583129'], 'abstract_inverted_index': None, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2076786601', 'counts_by_year': [{'year': 2023, 'cited_by_count': 1}, {'year': 2021, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 2}, {'year': 2018, 'cited_by_count': 6}, {'year': 2017, 'cited_by_count': 4}, {'year': 2016, 'cited_by_count': 5}, {'year': 2015, 'cited_by_count': 1}, {'year': 2014, 'cited_by_count': 5}, {'year': 2013, 'cited_by_count': 9}, {'year': 2012, 'cited_by_count': 6}], 'updated_date': '2024-09-14T16:26:42.381778', 'created_date': '2016-06-24'}