Testing inter-observer error under a collaborative research framework for studying lithic shape variability.

Area of Science:

• Archaeological science
• Anthropological science
• Geometric morphometrics

Background:

• Assessing inter-observer error is crucial for morphometric analyses of stone tool shape.
• Traditional methods involving repeat trials are logistically challenging for large-scale international collaborations.

Purpose of the Study:

• To evaluate a novel method for testing inter-observer error using 3D printed replicas of lithic artifacts.
• To provide a cost-effective and scalable solution for collaborative research in lithic analysis.

Main Methods:

• Developed 3D printed copies of a lithic reference collection for distribution.
• Established clear protocols for photographing and measuring the 3D printed replicas.
• Assessed inter-observer variability on replicas and compared it to single-observer data.

Main Results:

• Standardized photography and defined measurement protocols minimize inter-observer error in morphometric data.
• 3D printed replicas effectively capture lithic shape variability with minimal error.
• The method proves effective for assessing error in collaborative research frameworks.

Conclusions:

• 3D printed replicas offer a viable and efficient alternative for assessing inter-observer error in lithic morphometrics.
• This approach supports international collaboration and reduces the need for physical artifact transport.
• Facilitates comparable data collection for lithic shape variability in remote research settings.