I've worked with Jewish Ethiopians who emigrated to Israel. this is from about 15 years ago so i don't know anymore what is relevant.
I don't know if the Jewish Ethiopians have the same cultural characteristics as non-Jewish, but what we found was:
*many came from small rural villages but some also came from big cities so there can be a difference in education levels. for example, in the school where i worked, there were children who didn't have the concept of numbers (other than, 1, 2 and many) and there were children who had gone to school so the gaps were big.
*because of a lot of different cultural/political reasons, many people are used to having "the government" take care of things so they may not understand the concept of being proactive.
*people lived in clans/groups (family based); there is a hierarchy in the community - "the elders" are respected and revered. anyone who is thought to be 'older' or 'in charge' will probably be treated with the same kind of respect. I wouldn't say it's exactly a fear, though, more a quesiton of respect.
*it was considered tacky to brag about yourself so some people might not be able to answer a question like "tell me about yourself".
*something that may appear like "stubborness" but is a reluctance to say that something is wrong,or that *you* made a mistake. example - in the school where i worked, the kids had chores. This was a Jewish/orthodox school that followed Rabbinic Law (which is what modern Jews follow). this is different from Biblical law (which is what Ethipian jews were following). so on the Jewish Sabbath (friday evening to saturday night) no "work" is allowed, but there are chores that according to Rabbinic Law you are allowed to do in specific prescribed ways. however, one student didn't know about the difference between the types of laws - all he knew was that we were trying to force him to do something that he believed was not allowed. however, he couldn't *say* to us "you are making a mistake" so he refused to do the work (which his group leader saw as a *behavioral* problem but luckily the social worker stepped in and spoke with the kid and realized it was a *cultural* problem.)