Hello all!

I have a research design :

View attachment 6083

As it can be seen

A, B, C are independent variables; D is a mediator and E is the dependent variable.

While A and C has an effect on D, B and D has a correlation.

In this research

- I guess the best way for analyzing is SEM however the relation between B and D is confusing.

I would like to ask

1. what would be the best statistical method for analysis

2. How can I calculate the number of participants? (I looked for G-power software but for this model, it looks like it is not possible to calculate)

Really really looking forward to some help !

Thanks!

I have a research design :

View attachment 6083

As it can be seen

A, B, C are independent variables; D is a mediator and E is the dependent variable.

While A and C has an effect on D, B and D has a correlation.

In this research

- I guess the best way for analyzing is SEM however the relation between B and D is confusing.

I would like to ask

1. what would be the best statistical method for analysis

2. How can I calculate the number of participants? (I looked for G-power software but for this model, it looks like it is not possible to calculate)

Really really looking forward to some help !

Thanks!

Last edited: