The research error described above is an example of selection bias.
Selection bias takes place when, from a population of interest, a group of individuals is selected in order to construct a sample but without a proper randomization. The result is a sample which is not representative of the underlying population.
According to the example, the target population of the research comprises all students but the sample only includes boys. Hence, selection has not been random because it followed a gender criteria, and the results obtained using it cannot be applicable to the whole population because they are affected by a selection bias.
Answer 1: The hammer and symbol represent the proletarian solidarity
Answer 2: The image isn't their so I think It might be Hitler
Answer 3: Not sure because I cant see that earthier
The loss of potential gain from other alternatives when one alternative is chosen
For the question, our image of how others see us, the best
answer would be self. The sense of self is defined as a collection of beliefs
that we hold. I hope this answer is the answer you’re looking for.
