Problem-solving skills in a digital environment are a prerequisite to a better future for all citizens in the Fourth Industrial Revolution era. To investigate the relationship between age, gender, computer use, and adult learners' problemsolving skills in a digital environment, this study analyzed the 4,540 Korean participants' problem-solving skills in a technology-rich environment using the Programme for the International Assessment of Adult Competencies data. Importantly, age showed the strong relationship with problem-solving skills of adults in a digital environment. Such results indicate that it is necessary to use different strategies to enhance problem-solving skills in a digital environment for different age groups. Another key finding was that the relationship between gender and problem-solving skills was weak. In addition, the relationship between problem-solving skills in a digital environment and computer use in one's life was stronger than computer use at work. Such results should be reflected in developing strategies and programs for information and communication technologies training.
K E Y W O R D Sage, computer use, education level, gender, PIAAC, problem-solving skills in a digital environment via Skype or Zoom, and taking courses online. Problem-solving skills in technology-rich environments (TREs) are defined as "the ability to use digital technology, communication tools and networks to acquire and evaluate information, communicate with others and perform practical tasks" (OECD, 2013, p. 59). In this highly digitized and interconnected social, economic, and educational world, spatial and temporal distance no longer limits our lives and continue to be extended novel ways (Lee, 2019). Unfortunately, however, not everyone has equal access or experience, or the same level of knowledge or competencies using information technology in a digital environment.According to the Organization for Economic Co-operation and Development (OECD) report ( 2013), adult problem-solving skills in a digital environment in Korea are quite varied. More specifically, despite Korea's reputation as a highly digital country, nearly one in four (i.e., 24.6%) of the Korean population aged 16-65 years are