Abstract
No universally accepted tool currently exists for assessing self-directed learning (SDL), and few studies have focused on validating new SDL instruments to achieve broad consensus regarding their psychometric rigor and applicability. This study examines the concurrent validity of two SDL tools: the SRSSDL_adult for middle-aged and older adults, and the SDLI for nursing students. These tools were administered to participants in Taiwanese senior learning centers, who were predominantly female (78.8%) and aged 65–74 years (45.6%), with many holding undergraduate degrees (43.8%). The highest scores were observed in “Needs assessment” (SRSSDL_adult) and “Learning motivation” (SDLI). A strong positive correlation (Pearson coefficient = 0.783, p < .001) confirmed the concurrent validity of the SRSSDL_adult against the SDLI. The two SDL assessment tools examined in this study can concurrently provide valuable insights into the identification of SDL abilities. The findings indicate that both scales are directly applicable to middle-aged and older learners.
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