Final answer:
Alfie Kohn states that praised students may become more tentative due to complacency, with praise potentially leading them to be less driven to improve.
Step-by-step explanation:
According to Alfie Kohn, praised students often tend to become more tentative because praise leads to complacency, making choice (b) the correct answer. Kohn's perspective suggests that when students receive praise, it might not boost their motivation in a positive direction. Instead, they may feel less inclined or motivated to challenge themselves, potentially hindering their learning and growth. Theories of motivation by different researchers indicate that while some believe extrinsic rewards can undercut intrinsic motivation, others argue that positive reinforcements like praise may not harm and might even enhance intrinsic motivation. Therefore, the effect of praise can be complex and is subject to debate within the field of educational psychology.