He will most likely exhibit a decrease in self-confidence during adolescence. The two most normal self-confidence drops amid adolescence are toward the start, in Early Adolescence when isolating from adolescence, and toward the end, in Trial Independence when leaving home to work more all alone terms. In both cases, the youngster must get used to working on a fundamentally extended playing field of life experience than she or he experienced some time recently.
I'm assuming bias, as a person's innate beliefs and the biases resulting from them can affect how they receive and comprehend information, and how they portray it. For example, American conservatives are more likely to read and trust information from right-winged media than left-wing, and vice versa with liberals/progressives.