Crider, Donald M.; Willits, Fern K.; Bealer, Robert C. - In: Sociological Methods & Research 2 (1973) 1, pp. 3-19
Panel studies, undertaken with grandiose plans and high hopes, frequently fail to live up to the expectations of the initiators of the research. Practical problems, such as continuity of personnel, institutional commitment, funding, design and substance of the data bank, and changing of...