The document discusses five key factors that affect language learning strategy usage: motivation, period of language study, proficiency level, learning style, and religion. Motivation is seen as the main driver of success, with integrative motivation tending to be more effective than instrumental motivation. Higher proficiency levels and more experience studying a language are linked to using a wider variety of strategies. Learning style and religion can also influence what strategies learners prefer. Religious language learners, for example, may rely more on religious-based strategies.