A journey through communities of practice: How and why members move from the periphery to the core

The Measurement of Observer Agreement for Categorical Data

J. Richard Landis, Gary G. Koch · Biometrics · 1977 · 78.9K citations · Full text

Public Health, Biostatistics, Categorical Data Analysis +12

The Discovery of Grounded Theory: Strategies for Qualitative Research.

Helmut R. Wagner, Barney G. Glaser, Anselm L. Strauss · Social Forces · 1968 · 46.6K citations

Social Sciences, Sociology, Ethnography +11

A Coefficient of Agreement for Nominal Scales

Jacob Cohen · Educational and Psychological Measurement · 1960 · 41.3K citations

Education, Educational Assessment, Educational Measurement +8

The Discovery of Grounded Theory; Strategies for Qualitative Research

Barney G. Glaser, Anselm L. Strauss, Elizabeth Strutzel · Nursing Research · 1968 · 39K citations

Social Sciences, Sociology, Anthropological Theory +11

Building Theories from Case Study Research

Kathleen M. Eisenhardt · Academy of Management Review · 1989 · 23.2K citations · Full text

Education, Psychology, Case Management +13