@book{oai:repository.ninjal.ac.jp:00001344,
 author = {国立国語研究所 and The National Language Research Institute},
 month = {Mar},
 note = {[Studies on the vocabulary of junior high school textbooks (Reports 87, 91)]
These books report on a vocabulary survey of 4 science textbooks (Science I, Part 1; Science I, Part 2; Science II, Part 1; Science II, Part 2) and 3 social science textbooks (in the fields of Sociohistory, Sociogeography, and Civics) used in junior high schools in 1980. Following Studies on the Vocabulary of Senior High School Textbooks (Reports 76, 81), the goal of this study was to determine which vocabulary are thought to be important for the acquisition of technical knowledge in each field on the level of compulsory education, i.e., the level just below senior high school.

We adopted a method of total enumeration for the analysis and description of the system of vocabulary and writing forms used in the above textbooks. We used two units: “W units”, which were based on elements which compose sentences and “M units”, based on the elements (morphemes) which compose words, the same units as were used in Studies on the Vocabulary of Senior High School Textbooks.

We succeeded in automating the work involved even further than in the previous study, using a computer approach based on the data obtained for high school textbooks. 

Report 87 consists of a vocabulary table in order of the Japanese 50-kana syllabary and a vocabulary table in order of frequency of usage for the M units. Report 91 contains the same tables for the W units.

This research was directed by SAIGA Hideo, TUTIYA Sin’iti, NAKANO Hirosi, TURUOKA Akio, YAMAZAKI Makoto, NOMURA Masaaki, SATAKE Hideo, ISII Masahiko, SAITÔ Hidenori and TANAKA Takusi. The results were written up by NAKANO Hirosi, TURUOKA Akio, ISII Masahiko and YAMAZAKI Makoto., application/pdf},
 publisher = {国立国語研究所},
 title = {中学校教科書の語彙調査 2},
 year = {1987},
 yomi = {コクリツ コクゴ ケンキュウジョ}
}