After the data has been keyed in, an initial Codebook is prepared to verify and ensure there is no error in keying in the data. The images below show that there was, indeed, no error in keying in.
An example of an item taken from both scales is also shown. Other items follow the same format as well.
As is seen, all 40 participants have been counted from all 4 levels and both genders equally. Furthermore, the missing value is 0, thus confirming no missing data.
At this stage, the use of an initial Codebook is completed. Next, we will look at Screening, Cleaning, and Preparing the data.