meta-analysis is new technique that attempts to develop valid genraliasations with the help of statististical evidence concerning probale effects of an terventation. The technique is popular with mdical sciences and has spread out to social sciences.
The meta-analysis is applicable in different sciences. It is a fundamental statististics and mathematics. At the first-sight, it appears tobe a complex phenomenon and process. It is primarily based on resampling theory. Several models have been postulated in the last thirty years. Glass(1976) put it in an organised form explaining the genesis of such a technique.The results of experiments or studies differ on account of real and statistical factors. By statistical factors I mean sampling error, and measurement error. Real factors are in the form of intervention or explantory factor that genuinely causes a variation in the dependent measure.
ReplyDelete