Selective evidence refers to the practice of choosing specific pieces of information or data that support a particular argument or viewpoint while ignoring other relevant evidence that may contradict it. This can lead to biased conclusions and misrepresentations of the overall situation. In research and discussions, relying on selective evidence can undermine the credibility of the findings. It is important to consider all available data, including those that may challenge one's perspective, to ensure a balanced and accurate understanding of the topic at hand, such as in debates about climate change or healthcare policies.