| aikenV | Compute the Aiken's V index of content validity | 
| binary | Compute the students' score of spheredata package | 
| CLASS | The Colorado Learning Attitudes about Science Survey (CLASS) dataset | 
| CLASScontentvalidity | The Colorado Learning Attitudes about Science Survey (CLASS) content validity dataset | 
| demographic | Students' demographic of the SPHERE dataset | 
| FCI | The Force Concept Inventory (FCI) dataset | 
| FCIcontentvalidity | The Force Concept Inventory (FCI) content validity dataset | 
| FCIkey | The Force Concept Inventory (FCI) key dataset | 
| FMCE | The Force and Motion Conceptual Evaluation (FMCE) dataset | 
| FMCEcontentvalidity | The Force and Motion Conceptual Evaluation (FMCE) content validity dataset | 
| FMCEkey | The Force and Motion Conceptual Evaluation (FMCE) key dataset | 
| FMCI | The Fluid Mechanics Concept Inventory (FMCI) dataset | 
| FMCIcontentvalidity | The Fluid Mechanics Concept Inventory (FMCI) content validity dataset | 
| FMCIkey | The Fluid Mechanics Concept Inventory (FMCI) key dataset | 
| lawsheCVR | Compute the Lawshe's content validity ratio (CVR) | 
| literacy | Students' literacy dataset | 
| MWCS | The Mechanical Waves Conceptual Survey (MWCS) dataset | 
| MWCScontentvalidity | The Mechanical Waves Conceptual Survey (MWCS) content validity dataset | 
| MWCSkey | The Mechanical Waves Conceptual Survey (MWCS) key dataset | 
| physicsidentity | Students' physics identity dataset | 
| RRMCS | The Rotational and Rolling Motion Conceptual Survey (RRMCS) dataset | 
| RRMCScontentvalidity | The Rotational and Rolling Motion Conceptual Survey (RRMCS) content validity dataset | 
| RRMCSkey | The Rotational and Rolling Motion Conceptual Survey (RRMCS) key dataset | 
| SAAR | The Scientific Abilities Assessment Rubrics (SAAR) dataset | 
| SAARcontentvalidity | The Scientific Abilities Assessment Rubrics (SAAR) content validity dataset | 
| STPFASL | The Survey of Thermodynamic Processes and First and Second Laws (STPFASL) dataset | 
| STPFASLcontentvalidity | The Survey of Thermodynamic Processes and First and Second Laws (STPFASL) content validity dataset | 
| STPFASLkey | The Survey of Thermodynamic Processes and First and Second Laws (STPFASL) key dataset | 
| TCE | The Thermal Concept Evaluation (TCE) dataset | 
| TCEcontentvalidity | The Thermal Concept Evaluation (TCE) content validity dataset | 
| TCEkey | The Thermal Concept Evaluation (TCE) key dataset | 
| teachersjudgment | Teachers' judgment dataset |