cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5281/zenodo.17412640
title: The ABC Model: Implementation and Outcomes Data

description: The ABC Model: Implementation and Outcomes Data

This repository contains data and examination materials from a longitudinal quasi-experimental study evaluating the ABC (Autonomy-Belief-Competence) assessment model in undergraduate mathematics.

THE ABC MODEL

The ABC model is a novel choice-based assessment approach combining:- Tiered task selection: Examination tasks stratified across three difficulty levels (A/B/C)- Weighted grading: Differentiated point values (10/12/14 points) incentivizing challenge-seeking- Best-N selection: Students' three highest-scoring tasks counted toward final grade- Summative examination context: Applied within high-stakes final examinations

Unlike existing approaches where choice is typically limited to formative contexts, ABC operationalizes autonomy support within summative evaluation while maintaining rigorous academic standards.

STUDY OVERVIEW

Study Period: 2023-2025Institution: Karakalpak State University, UzbekistanSample: 1,572 student-course observations from 261 unique studentsDesign: Within-subject comparison (Traditional vs ABC), longitudinal follow-up (2 years), scale-up evaluation.

KEY FINDINGS

- Pass rates increased: 45.6% → 91.5% (+45.9 percentage points)- Quality performance (grades 4+5): 27.4% → 60.8% (+33.4pp)- Retake rates declined by 83%: 54.4% → 8.5%- Effects sustained longitudinally into second-year courses- Inter-group performance variation reduced by 52% across language groups (Uzbek, Karakalpak, Russian)

REPOSITORY CONTENTS

1. ABC_Analysis_1.xlsx — Complete performance dataset (11 sheets)   • Course-level data: Years 1-3 (2023-2025)   • Within-subject comparison (540 observations)   • Longitudinal tracking (1,032 observations)   • Language group stratification

2. ABC_Model_Exam_Samples.pdf — Examination materials (20 pages)   • Traditional examination format (baseline): sample variant + grading criteria   • ABC examination format: sample variant with tiered tasks (A/B/C levels) + complete grading system   • Grade calculation examples demonstrating different student strategies   • Approved by Faculty Council of Mathematics (2023-2024)

DATA STRUCTURE

Excel file contains 11 sheets:- Sheets 1-3: Course-level data by year- Sheets 4-8: Aggregated summaries and language group analyses- Sheets 9-11: Cohort-specific data (Primary, Scalability, Historical)

Variables include: course, language group, semester, assessment system, student counts, pass/retake rates, grade distributions.

ETHICS AND ANONYMIZATION

Ethics approval: University Council, Karakalpak State UniversityAll student identities replaced with numeric identifiersData collected as part of routine educational assessment (2023-2025)

RELATED PUBLICATION

Manuscript under review. Citation details will be added upon acceptance.

CONTACT

For questions about data or implementation:Karakalpak State Universityalikarziev79@gmail.com
DOI: 10.5517/cc10v8fk
title: CCDC 948768: Experimental Crystal Structure Determination

description: Related Article: Romana Pajkert and Gerd-Volker Röschenthaler|2013|J.Org.Chem.|78|3697|doi:10.1021/jo400198a
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc10v8gl
title: CCDC 948769: Experimental Crystal Structure Determination

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description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc10v8hm
title: CCDC 948770: Experimental Crystal Structure Determination

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description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc10v8jn
title: CCDC 948771: Experimental Crystal Structure Determination

description: Related Article: Francois Grillet and Kay M. Brummond|2013|J.Org.Chem.|78|3737|doi:10.1021/jo4002432
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccz1kk3
title: CCDC 895235: Experimental Crystal Structure Determination

description: Related Article: Sandeep N. Raikar and Helena C. Malinakova|2013|J.Org.Chem.|78|3832|doi:10.1021/jo400246d
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccz1kh1
title: CCDC 895233: Experimental Crystal Structure Determination

description: Related Article: Sandeep N. Raikar and Helena C. Malinakova|2013|J.Org.Chem.|78|3832|doi:10.1021/jo400246d
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccz1kj2
title: CCDC 895234: Experimental Crystal Structure Determination

description: Related Article: Sandeep N. Raikar and Helena C. Malinakova|2013|J.Org.Chem.|78|3832|doi:10.1021/jo400246d
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc10v7wz
title: CCDC 948751: Experimental Crystal Structure Determination

description: Related Article: Anukul Jana, Volker Huch, Michal Repisky, Raphael J. F. Berger, David Scheschkewitz|2014|Angew.Chem.,Int.Ed.|53|3514|doi:10.1002/anie.201310475
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccz7fsd
title: CCDC 900884: Experimental Crystal Structure Determination

description: Related Article: Sandeep N. Raikar and Helena C. Malinakova|2013|J.Org.Chem.|78|3832|doi:10.1021/jo400246d
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cczv4kh
title: CCDC 918857: Experimental Crystal Structure Determination

description: Related Article: Fumiya Urabe,  Shunsuke Nagashima,  Keisuke Takahashi,  Jun Ishihara,  and Susumi Hatakeyama|2013|J.Org.Chem.|78|3847|doi:10.1021/jo400263w
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cczy412
title: CCDC 921724: Experimental Crystal Structure Determination

description: Related Article: Concepción Alonso,  Marı́a González,  Marı́a Fuertes,  Gloria Rubiales,  Jose Marı́a Ezpeleta,  and Francisco Palacios|2013|J.Org.Chem.|78|3858|doi:10.1021/jo400281e
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cczy423
title: CCDC 921725: Experimental Crystal Structure Determination

description: Related Article: Concepción Alonso,  Marı́a González,  Marı́a Fuertes,  Gloria Rubiales,  Jose Marı́a Ezpeleta,  and Francisco Palacios|2013|J.Org.Chem.|78|3858|doi:10.1021/jo400281e
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc10v8pt
title: CCDC 948776: Experimental Crystal Structure Determination

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description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc10v8qv
title: CCDC 948777: Experimental Crystal Structure Determination

description: Related Article: Manas K. Ghorai and Y. Nanaji|2013|J.Org.Chem.|78|3867|doi:10.1021/jo400287a
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc10v8rw
title: CCDC 948778: Experimental Crystal Structure Determination

description: Related Article: Manas K. Ghorai and Y. Nanaji|2013|J.Org.Chem.|78|3867|doi:10.1021/jo400287a
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/ccxnz4n
title: CCDC 854302: Experimental Crystal Structure Determination

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description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cczzn9w
title: CCDC 923189: Experimental Crystal Structure Determination

description: Related Article: James Douglas,  James E. Taylor,  Gwydion Churchill,  Alexandra M. Z. Slawin,  and Andrew D. Smith|2013|J.Org.Chem.|78|3925|doi:10.1021/jo4003079
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cczznbx
title: CCDC 923190: Experimental Crystal Structure Determination

description: Related Article: James Douglas,  James E. Taylor,  Gwydion Churchill,  Alexandra M. Z. Slawin,  and Andrew D. Smith|2013|J.Org.Chem.|78|3925|doi:10.1021/jo4003079
description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cczzncy
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description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc10v7x0
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description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cczspq4
title: CCDC 917467: Experimental Crystal Structure Determination

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description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.5517/cc10v7z2
title: CCDC 948754: Experimental Crystal Structure Determination

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description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.
DOI: 10.15468/dl.9t4rfq
title: Occurrence Download

description: A dataset containing 27867 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Lycorma delicatula (White, 1845)",
 "OccurrenceStatus is Present",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "CoordinateUncertaintyInMeters is less than 10000",
 "BasisOfRecord is one of (Living Specimen, Human Observation, Observation, Occurrence evidence, Machine Observation)"
 ]
}

 The dataset includes 27867 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0018039-250402121839773/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.rbw777
title: Occurrence Download

description: A dataset containing 22169897 species occurrences available in GBIF matching the query:
{
 "or" : [
 "TaxonKey is Artemisia issaevii Rzazade",
 "TaxonKey is Passer domesticus (Linnaeus, 1758)"
 ]
}

 The dataset includes 22169897 records from 5209 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0018013-250402121839773/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.8tnrtt
title: Occurrence Download

description: A dataset containing 6 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Erysimum kazachstanicum Botsch."
 ]
}

 The dataset includes 6 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0062436-231120084113126/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ng25zr
title: Occurrence Download

description: A dataset containing 34 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Cottus rondeleti Freyhof, Kottelat & Nolte, 2005"
 ]
}

 The dataset includes 34 records from 8 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0007033-190813142620410/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5thwks
title: Occurrence Download

description: A dataset containing 26 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Sciaphobus squalidus (Gyllenhal, 1834)"
 ]
}

 The dataset includes 26 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0106289-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.733c6m
title: Occurrence Download

description: A dataset containing 31 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Anodendron nervosum Kerr"
 ]
}

 The dataset includes 31 records from 7 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0006054-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zhjem8
title: Occurrence Download

description: A dataset listing the 1 species recorded in GBIF matching the query:
{
 "and" : [
 "Continent is Europe",
 "Geometry POLYGON((-50.02768 17.00727,87.07486 17.00727,87.07486 71.94166,-50.02768 71.94166,-50.02768 17.00727))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Inula ensifolia L."
 ]
}

 The dataset's 1 records were derived from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0167837-220831081235567/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.8aada6
title: Occurrence Download

description: A dataset containing 1554 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((94.21875 -8.96484,119.79492 -8.96484,119.79492 26.89453,94.21875 26.89453,94.21875 -8.96484))",
 "HasCoordinate is true",
 {
 "or" : [
 "TaxonKey is Paludomidae",
 "TaxonKey is Physidae",
 "TaxonKey is Planorbidae",
 "TaxonKey is Thiaridae"
 ]
 }
 ]
}

 The dataset includes 1554 records from 25 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0123826-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.5yz5bm
title: Occurrence Download

description: A dataset containing 47 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Erysimum metlesicsii Polatschek"
 ]
}

 The dataset includes 47 records from 16 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0062477-231120084113126/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.hjheyn
title: Occurrence Download

description: A dataset containing 505 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Eupemphix nattereri Steindachner, 1863"
 ]
}

 The dataset includes 505 records from 36 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010730-190813142620410/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.y5j65k
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Scrophularia depauperata Boiss.",
 "HasCoordinate is true",
 "Continent is Europe",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 2000",
 "CoordinateUncertaintyInMeters is less than 10000"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0006060-240229165702484/datasets/export for details.
DOI: 10.15468/dl.abyy3m
title: Occurrence Download

description: A dataset containing 1484 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is South America",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Podocarpus L'Hér. ex Pers."
 ]
}

 The dataset includes 1484 records from 71 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0130104-200613084148143/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.ikmmbu
title: Occurrence Download

description: A dataset containing 145234 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "BasisOfRecord is Observation",
 "BasisOfRecord is Human Observation",
 "BasisOfRecord is Material sample",
 "BasisOfRecord is Literature Occurrence",
 "BasisOfRecord is Specimen"
 ]
 },
 "HasCoordinate is true",
 "TaxonKey is Phalangeridae",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 145234 records from 59 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0018269-190621201848488/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.