Category Archives: General

Why sample size is important?

Statistical analysis plays a vital role in thesis or dissertation presentations. In any report, numbers speak more than words. A pictorial representation of number rather than explaining in words attracts the eye of the panelists and helps in gaining better grades. While doing this statistical analysis, the most important point is to test the sample […]

The graphic rating scale

It is one of the commonly used scales. Here the different points are often put along the line to form a continuum and the rater indicates his rating by putting a tick at the right point on a line that runs from one extreme end to another. Brief descriptions on scale points are given along […]

Tests of sound measurement

Sound measurement implies the tests of validity, reliability and practicality. Tests of validity: it is the most important criterion and means the degree to which an instrument measures what it is suppose to measure. It can also be taken as utility. There are three types of validity to be considered in this connection: Content validity-this […]

Test of practicality

Economy, interpretability and convenience are the three factors on which the practicality of a measuring instrument can depend upon.  The measuring instrument should be practical from operational point of view. The economic factor suggests that some form of trade off is required between the projects considered ideal and also which could be afforded. Convenience test […]