Hello Balqish - I would look among the 'statistical resampling techniques'; google scholar can point you to a various sources. These techniques are useful in a wide range of circumstance. I add a text (David Garson) that I found on research gate. It lists many tests and mentions (briefly) resampling. You may find a starting point for a further search. It mentions other sources, in particular for the data type that you seam to have best regard, Martin

Because there have been so many questions here about Likert-scored items and creating scales from them, I have compiled a set of resources on this topic:

https://www.researchgate.net/post/How_can_one_help_people_create_simple_scales_from_Likert-scored_items

Thank you so much for your reply Prof. Martin Bohle and Prof David L Morgan

Following..