# Introduction

This article is part of a series of
brief illustrations of how
to use
`cond_effects()`
from the package
[manymome](https://sfcheung.github.io/manymome/)
[@cheung_manymome_2024]
to estimate the conditional
effects
when the model parameters are estimated by
ordinary least squares (OLS) multiple regression
using `lm()`. For moderated mediation
tested by OLS regression, please refer
to [this article](./mome_lm.html).

(Articles in this series had duplicated
sections to make each of them self-contained.)
