The decline of Jeju continued into the 1960s and 1970s. The Saemaeul Movement, an ambitious rural modernization program launched by Park Chung-hee, disrupted the traditional village community where Jeju had thrived. The language came to be perceived as an incorrect dialect of Korean, so that students were subject to corporal punishment if they used it in school, and the use of Standard Korean even in the private sphere began to spread from Jeju City outwards. The language attitude of native Jeju speakers in this period was self-disparaging, and even Jeju people regarded the use of Jeju "with contempt." A 1981 survey of language attitudes among high school and university students natively speaking Seoul Korean, Chungcheong Korean, Southwestern Korean, Southeastern Korean, and Jeju showed that Jeju speakers were the most likely among the five groups to ascribe negative traits to their native variety.