Power Analysis

Function: The BIS is responsible for sensitivity to punishment, non-reward, and novel situations. It regulates avoidance behavior.
Emotional Responses: It is associated with feelings of anxiety, fear, and apprehension. When activated, it can lead to cautious or inhibited behavior.
Neurobiological Basis: The BIS is thought to involve brain regions such as the hippocampus and amygdala, which are associated with processing risk and fear.

Definition of a power analysis in academic work:

A power analysis in academic work is a statistical method used to determine the minimum sample size required for a study to detect an effect of a given size. It helps researchers to estimate the number of participants needed to avoid type II errors (false negatives) where a present effect is not detected in the study. Power analysis can also be used to determine the minimum effect size that can be detected, given a fixed sample size. It allows researchers to more accurately design their studies and balance necessary resources like time and cost with statistical power and precision.

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Using R:

power.t.test(n = NULL, delta = 1, sd = 10, sig.level = 0.05, power = 0.9, type = "two.sample", alternative = "two.sided")

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