Probit to percentage coversion

[Javaid Iqbal]

Dear Lavaan Team,

I am fairly new to lavaan. As I understand, lavaan computes the probit coefficients for direct, indirect and total effects. I wondered if it is possible to convert a model coefficient into percentage, which is easier to interpret than the probit coefficient. For example, let's suppose the coefficients of the direct, indirect and total effects are -0.04333667, 0.02129660 and  -0.02204007, respectively, can we convert these into percentages?

Thanks in advance for your input,

Javaid

[Stas Kolenikov]

What you are looking for is called “marginal effect”. Since probit is nonlinear, percents will be different depending on whether you start at 5% or 50%.

-- Stas Kolenikov, PhD, PStat (ASA, SSC) 

-- Principal Statistician, NORC @NORCnews

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[Javaid Iqbal]

Thank you so much, Stas!

Yes, I did end up estimating the marginal effects as an additional analysis.

Best regards,

Javaid