可以做。
第一步:用sureg求出各个mediators的coefficients。命令:sureg (mv1 iv)(mv2 iv)(dv mv1 mv2 mv3 iv)。
第二步:用nlcom命令求出indirect effects和total indirect effects。在Do-file editor写codes:
/* indirect via read */nlcom [m1]_b[iv]*[dv]_b[m1]
/* indirect via read */nlcom [m2]_b[iv]*[dv]_b[m2]
/* total indirect */nlcom [m1]_b[iv]*[dv]_b[m1] + [m2]_b[iv]*[dv]_b[m2]运行
第三步:根据第一步求出的direct effect,可以对每个mediator计算the ratio of indirect to direct effect and the proportion due to the indirect effect。在Do-file editor写codes:
/* ratio of indirect to direct */display indirect effect coefficient/direct effect coefficient.
/* proportion of total effect that is mediated */display indirect effect coefficient/(direct effect coefficient+indirect effect coefficient)
运行
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