Academic
A study reported in 1964 of the number of citations to medical dissertations in the period 1821-1960, based on the citations found in a sample of 10 American and European medical journals for that period, showed thatthere was a steady growth in the percentage of citations of dissertations from 0.8% of all citations in 1821-30 to a high of 4% in the 1881-1910 period, followed by a marked and generally steady decline in dissertation citations up to 1951-60 with a new low of 0.7% for that period. (Source)
A study reported in 1974 investigating the materials used by master’s and doctoral candidates completing theses after 1966 in public health at 5 universities (Yale; Harvard; University of California, Los Angeles; University of California, Berkeley; and California State University, Northridge), involving 3,456 citations taken from 44 theses, showed thatdoctoral theses had a higher proportion of journal citations than masters’ theses to a statistically significant degree (significant at the .02 level). However, in terms of overall number of citations per thesis, there was no statistically significant difference between doctoral and masters’ theses when method of investigation was considered. (Source)
Special
A study reported in 1964 of the number of citations to medical dissertations in the period 1821-1960, based on the citations found in a sample of 10 American and European medical journals for that period, showed thatthere was a steady growth in the percentage of citations of dissertations from 0.8% of all citations in 1821-30 to a high of 4% in the 1881-1910 period, followed by a marked and generally steady decline in dissertation citations up to 1951-60 with a new low of 0.7% for that period. (Source)
