Quasi-randomisation means assigning participants to different groups using a method that is not entirely random, but still involves some form of random allocation to conditions or groups. This typically occurs in situations where true randomisation is not feasible, ethical, or practical. Examples of quasi-randomisation are:
Alternate allocation (e.g., every other participant)
Birthdays (e.g., assigning participants based on the month or day of birth)
Lottery or coin flips (though not completely random, it attempts to introduce some degree of randomness)
Other non-random methods (like assigning participants based on a set of characteristics that resemble random distribution)