Hello,
This is an interesting challenge, especially when working with interoperability between platforms like Schoology and the QTI (Question and Test Interoperability) standard. Schoology's implementation of QTI might have subtle variations or custom requirements, particularly for question types like file upload, highlighting, or image labeling, which aren't always uniformly supported across LMS platforms.
Schoology-specific QTI extensions: Schoology may have proprietary extensions or slight deviations from the QTI 2.2 standard. Have you tried reaching out to Schoology's support or community forums for any available documentation or examples?
Namespace or Attribute Modifications: Sometimes, platforms expect specific attributes or namespace adjustments in the XML. Checking if Schoology requires custom attributes within <item>, <responseDeclaration>, or <itemBody> elements could be key.
File Upload and Highlighting Specifics: File upload and highlight questions are often tricky since they require handling user interactions differently. Does Schoology expect specific MIME types or encoding methods for these interactions?
Community Examples and Workarounds: Have you experimented with exporting a native Schoology quiz in QTI format and comparing it with the official QTI structure? This could reveal differences in the structure that could guide your modifications.
XSD Validation: Running your XML through a QTI-compliant XSD validator might help identify if the issue is with adherence to QTI or if Schoology is expecting something outside the standard.
