Creating nice SEM diagrams in Powerpoint - the easy way

With five powerpoint shapes, you can create almost any SEM diagram, or at least the diagram below. Just follow the step-by-step guides below, or use this powerpoint template, in which I've included all shapes described below (it's only one slide, see picture). Or, use one of the alternatives at the bottom of the post.



Single headed straight arrow
1) click 'Insert' - 'Shapes'
2) select 'Arrow' under 'Lines'
3) draw
4) right-click on the arrow
5) select 'Format shape'
6) select 'Line style'
7) under 'Arrow settings', select the type and size you would like for the begin and end arrows
8) click 'Close'
9) very good, Daniel-san!

Double headed straight arrow
1) click 'Insert' - 'Shapes',
2) select 'Double headed arrow' under 'Lines',
3) draw
4) right-click on the arrow
5) select 'Format shape'
6) select 'Line style'
7) under 'Arrow settings', select the type and size you would like for the arrow
8) click 'Close'
9) very good, Daniel-san!

Manifest variable
1) click 'Insert' - 'Shapes'
2) select 'Rectangle' under 'Rectangles'
3) draw
4) select the square and just start typing to name the variable 
5) very good, Daniel-san!

Latent variable
1) click 'Insert' - 'Shapes'
2) select 'Oval' under 'Basic Shapes'
3) draw
4) select the circle and just start typing to name the variable
5) very good, Daniel-san!

Double headed curved arrows
Ah, the tricky one! Never use the default 'Curved arrow', it will never look right. Instead:
1) click 'Ínsert' - 'Shapes'
2) select 'Arc' under 'Basic shapes'
3) draw an arc
4) select the rightmost yellow diamond of the arc and drag it to the bottom white square (this should give you the right curve already)
5) right click on the arc
6) select 'Format shape'
7) select 'Line style'
7) under 'Arrow settings', select the type and size you would like for the begin and end arrows
8) click 'Close'
9) very good, Daniel-san!

Alternatives
- Use LaTeX with tikz
- Watch this short video tutorial on creating double head curved arrows in powerpoint: https://www.youtube.com/watch?v=8dAmJxBSLy4