R2
Y/X = The Coefficient in the regression
equation. This variable can be based on previous
similar research or researcherûs assumption. It
determines, at the very least, how all the independent
variables in the equation can explain the variation of
dependent variables. For example, R2 = 0.01 means
the independent variable in the equation can explain
the variation of dependent variables at least 10%. In
this research study, the R2 represents the overall
variables of the management of health projects from
studying health project management by chiefs of
health center in the Public Health District 10, which
yielded R2 = 0.51(Prachak, 2007)
Calculation