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Mediation would mean: The Intervention changes the degree of neuroticism,

and through this, the intervention exerts its influence on the dependent variable

(mindfulness). The change between pre-mindfulness and post-mindfulness

is mediated by a change between pre-neuroticism and post-neuroticism.

But you seemingly only have pre-neuroticism scores? And whether a trait-measure

would be an appropriate mediator variable in the analysis of a mindfulness interventon,

seems doubtful. Are you sure that you really mean mediation here, not moderation?

Regarding theat categorization stuff, I don't know what should be the use of it. One

can just use the scores from the original measurement scale.

With kind regards

Karabiner

and through this, the intervention exerts its influence on the dependent variable

(mindfulness). The change between pre-mindfulness and post-mindfulness

is mediated by a change between pre-neuroticism and post-neuroticism.

But you seemingly only have pre-neuroticism scores? And whether a trait-measure

would be an appropriate mediator variable in the analysis of a mindfulness interventon,

seems doubtful. Are you sure that you really mean mediation here, not moderation?

Regarding theat categorization stuff, I don't know what should be the use of it. One

can just use the scores from the original measurement scale.

With kind regards

Karabiner

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If you want to visualize what is going on, you could split your sample for example into 3 groups (lowest

33% of neuroticism scores, medium 33%, highest 33%), and plot pre- and post "mindfulness" values

for these three groups. Then you can see, for example, whether the change from pre to post ist larger

for the lowest neuroticims group than for the highest.

With kind regards

Karabiner

and through this, the intervention exerts its influence on the dependent variable

(mindfulness). The change between pre-mindfulness and post-mindfulness

is mediated by a change between pre-neuroticism and post-neuroticism.

But you seemingly only have pre-neuroticism scores? And whether a trait-measure

would be an appropriate mediator variable in the analysis of a mindfulness interventon,

seems doubtful. Are you sure that you really mean mediation here, not moderation?

Regarding theat categorization stuff, I don't know what should be the use of it. One

can just use the scores from the original measurement scale.

With kind regards

Karabiner

I am doing a similar study, but let's continue using this example. In my case, I DO have the post-neuroticism scores, and I AM doing a Mediation analysis, not a moderation analysis (although I will be doing it later in the study, for now, I would just like to do a mediation analysis). Do I then use the difference in the pre- and post-neuroticism scores for the mediation? I am using the PROCESS Macro for SPSS. If you could please help me with this issue, it would be appreciated!

Kind regards

Elle