On 2017 Jun 01, Lawrence Moon commented:

There is a typo regarding SPSS Syntax in Supplementary Information. prepop should read preop

Thanks to Merrick Strotton for finding it!

On 2016 Nov 05, Lawrence Moon commented:

You may also find this short PDF useful if you have empty cells in your dataset that represent missing data.

https://www.yorksj.ac.uk/media/content-assets/schools/psychological-social-sciences/documents/How-to-enter-missing-data-in-SPSS.pdf

On 2016 Nov 05, Lawrence Moon commented:

I will happily help people learn to analyse their own data using this protocol if you get in touch by email. Best wishes, Lawrence

On 2016 Nov 05, Lawrence Moon commented:

I will happily help people learn to analyse their own data using this protocol if you get in touch by email. Best wishes, Lawrence

On 2016 Nov 05, Lawrence Moon commented:

You may also find this short PDF useful if you have empty cells in your dataset that represent missing data.

https://www.yorksj.ac.uk/media/content-assets/schools/psychological-social-sciences/documents/How-to-enter-missing-data-in-SPSS.pdf

On 2017 Jun 01, Lawrence Moon commented:

There is a typo regarding SPSS Syntax in Supplementary Information. prepop should read preop

Thanks to Merrick Strotton for finding it!