what is the main difference between a mediators independent variable and an effect to be mediated how to test mediation model why is mediation important how can a mediator's independent variable be mediated if mediators are negative, why is it necessary to test their hypothesis how does a mediational model show if it's an effect? can mediators cause an effect in mediation how is a mediational model statistically possible what is the effect to be mediated mediational models are __________. what is the mediational effect what is the difference between the effect of a mediator and mediation? which statement relates mediation to a mediational model is mediation statistically significant can a mediational model have an effect to be mediated mediator's effect to be mediated definition how many mediators are involved in the mediation how do mediators mediated if the outcome of a mediational model is negative, the impact to be mediated what is meant by the term effect to be mediated