Path analysis (statistics) - Wikipedia
https://en.wikipedia.org/wiki/Path_analysis_(statistics)In order to validly calculate the relationship between any two boxes in the diagram, Wright (1934) proposed a simple set of path tracing rules, for calculating the correlation between two variables. The correlation is equal to the sum of the contribution of all the pathways through which the two variables are connected. The strength of each of these contributing pathways is calculated as the product of the path-coefficients along that pathway.
Principles of Path Analysis - Rutgers University
crab.rutgers.edu › ~goertzel › pathanalPath analysis is a straightforward extension of multiple regression. Its aim is to provide estimates of the magnitude and significance of hypothesised causal connections between sets of variables. This is best explained by considering a path diagram . To construct a path diagram we simply write the names of the variables and draw an arrow from ...