S1 added "Path Coefficient as a child node of "Path Diagram for technology use on self-directed learning, student engagement and academic performance" to help to  interpret the diagram.

Example of node evolution for path coefficient example (picture 5)

S4 added a modern interpretation for path coefficient to the node.

University of Michigan - Ann Arbor

S4 removed the diagram and changed the title to "Path Coefficients". They also updated the content by making it a definition for Path Coefficients. They cited the redundancy of having two of the same diagrams as their reasoning. They also changed the concept's parent node from "S Wright's Guinea Pigs and the 'First link of Causality and Probability'" to "The path diagram for inheritance of fur color in guinea pigs" to improve the hierarchical organization. 

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