Downside to Collaboration

During this subject we have been exposed to all of the postitives that calloborative learning provides.
I have experienced a couple of negative effects from collaborative learning and wanted to share them with you.
Whilst doing the practise quiz, I had posted an answer and justification for that answer (a). However, as I looked through all of the other answers posted I noticed that most others had chosen a different answer to mine. I was convinced that I must be wrong if so many others were chosing the same answer (b). During the quiz this question came up, being influenced by others answer I chose b. Unfortunantly this was the wrong decision as I had the right answer. If feedback had been given on the practise quiz then I may not have been convinced to change my response. I understand that the correct answer couldn't be given as it was a question being used on the quiz, however, feedback such as 'your on the right track but have another look' or 'have you considered this' would have redirected learning in the right direction. Just sayin. It proves that constant monitoring and redirection will need to be given to students to ensure that the learning outcomes are achieved.
Another issue I see in collaboritive learning is that it easy to be intimitaed by others who's ideas overstate your, and who's ability to understand the task is more comprehensive. I experienced this whilst reading another person's blog reflections. It was clear that the other person's ablities to understand this subjsct and provide comprehensive reasonging and skills were far more superior to mine which left me feeling underwhelmed and out of my league.