이 연구는 발행된 연도의 평균 인용빈도를 보여주는 지수인 학술지의 즉시성지수를 수집한 후 즉시성지수의 증감에 영향을 준 구체적인 요인을 분석하였다. 이를 위해 2008년 JCR에 수록된 생물학(biology) 분야의 학술지 71종에 관한 즉시성지수를 수집하였고, 즉시성지수 값에 직간접적으로 영향을 준 것으로 보이는 여러 항목에 관한 데이터를 수집하여 분석하였다. 단순상관관계분석, 요인분석, 회귀분석 등을 실시한 결과 즉시성지수 총분산의 67.64%가 외형, 수집가능성, 예정호 및 연령, 언어 등의 요인으로 설명되었다. 이 요인들을 독립변수로 회귀분석을 실시한 결과 통계적으로 유의하였다. 일반적으로 학술지의 즉시성지수에 많은 영향을 줄 것으로 기대되는 것은 학술지의 인지도이지만, 이 연구에서는 학술지의 면수와 같은 외형이 즉시성지수에 직접적인 영향을 주고 있는 것으로 나타났다. 아울러 오픈액세스 학술지가 일반 학술지에 비해 즉시성지수가 더 높았다. 또한 즉시성지수가 높은 학술지는 연간 발행횟수가 많고, PMC에 등재되는 사례가 흔하며, 발행국은 주로 미국과 영국이라는 것이 확인되었다.
This paper examined what factors affect the immediacy index showing the average number of times an article is cited in the year it is published. Not only Seventy-one immediacy indexes for subject field biology on JCR 2008 edition were gathered, but also many characteristics of scholarly journals that may influence the indexes directly or indirectly were aggregated. Simple correlation coefficient analysis, factor analysis, and regression analysis were performed on the paper. Therefore factors such as physical volume, availability, forthcoming issue, age and language explaining 67.64% of total variance were identified. After regression analysis using these factors as independent variables, the results were statistically significant. The results showed physical volumes, the total pages of publication, have an influence upon immediacy indexes obviously, although it is expected that journal reputations may affect immediacy indexes. Generally open access journals had high immediacy indexes. High ranked journals on immediacy index were apt to be issued frequently, uploaded very often on PMC, and published in major countries including United States and United Kingdom.
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