1) Motivation is a key factor influencing language learners' strategy use, with more motivated learners using strategies more frequently and adopting a wider range of strategies.
2) Proficiency level also impacts strategy use, with intermediate learners favoring metacognitive strategies and beginners using translation more, and high proficiency learners using cognitive and metacognitive strategies more.
3) Other learner characteristics like learning style preferences, gender, and length of time studying a language can influence the language learning strategies adopted. Females and those studying longer tend to use a greater variety of strategies.