संज्ञानात्मक अधिगम सिद्धांत (Cognitive learning theory) निम्नलिखित में से किस पर ध्यान केंद्रित नहीं करता है?

According to Stephen Krashen's Affective Filter Hypothesis, learners with a ______ seek and receive more input, interact with confidence, and are more receptive to the input they receive.

Which psychologist proposed the view that language is acquired primarily through imitation, reinforcement, and operant conditioning?