Zoe83:
I have read a lot of posts recently about how dive companies will give most people an OW certification just because they paid. I am going to be doing mine next week, and I dont want to 'buy' it...If myself or my husband are incompetant I want to know it before going out on my own with him as my buddy. How can I ensure I am really doing the right things if instructors will just say I can do it?
You have raised a very legitimate issue, but I would not worry very much about the specific question you have asked, because I don't think very many instructors actually "sell" certifications - you can fairly assume that you will earn your certification, and by the time the course is completed you will know that you have earned it. The bigger and more important issue (which I will come back to in a few paragraphs) is *what exactly have you earned*?
There is some material to be learned, and you are certainly capable of learning it. More importantly, you are obviously prepared to be honest enough with yourself to admit whether you are truly "getting it" or not. But none of the material is hard to learn if you're sufficiently interested to pay attention.
There are also skills that you will be required to complete, and *you* will know whether you can do them, and *you* will also know how comfortably you can complete them without feeling overloaded. If the instructor tells you that you have completed the skill satisfactorily, all that really means is that you have demonstrated the required (i.e., minimum) level of competence required for that skill. Even if the instructor is blowing smoke about how you're the best and most natural diver ever to pass through the course, *you* will know how you felt doing the skill, and whether it was easy or difficult. If you thought it was difficult, or stressful, you will appreciate the need to continue working on that skill. Imagine doing the same skill in the open water of the ocean; if you aren't confident that you could do it easily, you need to keep working on it, even after passing the course.
So, you are going to earn your certification. But you cannot take the certification to mean that the instructor has certified your competence to go out and dive anywhere in the world, in any conditions. The certification is just like a driver's license - it doesn't mean you're a good driver, it just means you have demonstrated the skills required to start driving on your own, so you can learn to become a good driver through experience. The idea is to go get that experience without having an accident, as you become more confident in your abilities and perfect your skills (and learn some new ones).
You have to be aware of your own limitations, and you are responsible for choosing when and where to dive after you are certified. Your OW instructor is no longer going to have anything to do with the decisions *you* make, and in the big scheme of things, those decisions are MUCH more important than his decision to certify you, by several orders of magnitude. I would suggest that you start out diving in conditions just like those chosen for your OW certification dives, and move on from there consistent with your comfort level.