We are pretty new to chicken raising as well. We moved our 8 chicks (girls) outside last May to the small coop DH had built. It was really only meant for 4-6 chickens and as they grew, we quickly realized we needed something larger and easier for the humans to clean. So, we built an 8x10 coop with a nice size run and had it complete by November, just in time for the cooler weather. We thought the girls would adjust quickly since it was close to their other coop and we let them inside the new one while we worked on it. When moving day came, all was well until bed time. They all lined up and stared at the old place. I locked them in the new coop and they settled down until the next morning when it was time to lay eggs - you can guess where they wanted to go. I finally relented and let 3 of the more high strung out and they made a mad dash for the old nest boxes. Things did settle down after about a week - and we blocked their view of the old coop with a tarp. But, one of the girls did become so stressed that she quit laying and went into a partial molt. At least that's what I guess it was, she sure lost a lot of feathers during that time. Then she started laying again in January and is as pretty as ever. So, the advice about locking them in the new coop is probably right on - but do be prepared for the stress others have warned you about. The girls at the top of the pecking order adjusted very quickly - guess that's why they are in charge!
