Nadharia Iliyoanzishwa ya Kawaida — Nadharia Iliyoanzishwa ya Kawaida (ya Glaser) (Classic Grounded Theory — Classic (Glaserian) Grounded Theory)

Nadharia Iliyoanzishwa ya Kawaida (CGT) ni mbinu ya utafiti wa ubora (qualitative) yenye mfumo maalum ya kuzalisha nadharia kuu (substantive theory) kutoka kwa data halisi. Iliyoundwa na Barney Glaser na Anselm Strauss mwaka 1967, hutumia mzunguko wa kukusanya data, kulinganisha mara kwa mara, na kuandika kumbukumbu ili kuzalisha kategoria kuu na mfumo wa dhana unaoelezea mchakato wa kijamii au kisaikolojia. Tofauti na marekebisho yake ya baadaye, CGT ya Glaser inasisitiza kuibuka kwa nadharia — nadharia lazima itoke kwenye data bila kulazimishwa na mifumo iliyokwisha kuwepo. (Classic Grounded Theory (CGT) is a systematic qualitative methodology for generating substantive theory from empirical data. Developed by Barney Glaser and Anselm Strauss in 1967, it uses iterative cycles of data collection, constant comparison, and memo writing to produce a core category and surrounding conceptual framework that explains a social or psychological process. Unlike its later variants, Glaserian CGT insists on emergence — theory must arise from data without forcing preconceived frameworks.)