3件 （「Kohei Koiwa」）

Coping behavior against the inability to “take a hint” in a contemporary adolescent group of friends 論文

Kohei Koiwa・Mao Komatsu・Koubun Wakashima ·2020-01-01 ·『The Japanese journal of psychology』　91(5)　pp. 312-322

doi:10.4992/jjpsy.91.19032

The Japanese version of the Fear of COVID-19 scale: Reliability, validity, and relation to coping behavior 論文

Koubun Wakashima・Keigo Asai・Daisuke Kobayashi・Kohei Koiwa・Saeko Kamoshida・Mayumi Sakuraba ·2020-11-05 ·『PLoS ONE』　15(11)　pp. e0241958-e0241958

doi:10.1371/journal.pone.0241958

Development of a COVID-19 Vaccination Anxiety Scale to measure COVID-19 vaccine anxiety in Japanese adults 論文

Time Fukuda・Ranno Haruyama・Yuto Tanaka・Shuma Natori・Kohei Koiwa・Koubun Wakashima ·2026-07-07 ·『PLoS ONE』　21(7)　pp. e0330146-e0330146

doi:10.1371/journal.pone.0330146