After anika learned that her history teacher had suffered an anxiety disorder, she concluded that the teacher's tendency to talk loudly was simply a way of disguising feelings of personal insecurity. this best illustrates the

biased power of diagnostic labels

Explanation:

Diagnostic labels refers to the act of separating people based on a certain traits or characteristics for research or diagnostic purposes.

Initially, the purpose of creating diagnostic labels is to make it easier for us to identify a symptom that might resided. But , if we held those diagnostic labels harder that we suppose to be, we will form a bias that might make us falsely interpreted the traits/characteristics (just like when anika perceive her teacher of being insecure simply because her teacher talk loudly)

buildings sir and respect

this is a pretty broad question and can be a pretty lengthy answer. since 1900, women have gained a lot more rights and have become active in the workforce. with women being in the workforce, men play a larger role in family life. many family tasks are shared between men and women, whereas, women used to be the sole family caretakers.

that should get you started at least.