<span>To evaluate student progress it is best to review the student's earlier work and compare with the new work. An evaluation of performance should be based on test scores, homework scores and more subtle psycho-social factors related to development.</span>
You may do a study of college wrestling and use your experience as a student-athlete to access wrestling spaces, athletes, and coaches. Considering how your past opportunities and privileges influence your study and its findings is: reflexivity.
The term reflexivity denotes the attitude of attending systematically to the context of knowledge construction, especially to the effect of the researcher.
The ~unequal~ statuses of different individuals in a society. for example, a doctor has a higher social status than a janitor working at the same hospital. the doctor might be awarded for his work, while the janitor is mostly ignored. the doctor may also have come from a fairly wealthy family and received a good education, while the janitor may have had economic disadvantages and a poor quality education. so the doctor and the janitor are socially unequal. social inequality is very closely connected to economic inequality, so if you ever see the phrase "socio-economic inequality," that's why.
The most powerful person (politically, not economically) in Germany now is its Chancellor (it is always the Chancellor), who at the moment is Angela Merkel. Merker is the head of the German government which is responsible for most of the functions of the country (but not for making laws).