Which factors can influence intelligence test outcomes?

The influences on intelligence test outcomes are multifaceted, and the selected response appropriately highlights that both the test environment and the test-taker's mood are significant factors. An optimal test environment, which includes factors such as noise levels, comfort, and the presence of a qualified proctor, can enhance a test-taker's ability to focus and perform well. Conversely, a distracting or uncomfortable setting can hinder performance.

Additionally, a test-taker's mood is another crucial factor. Emotional states, such as anxiety or confidence, can significantly influence cognitive performance on assessments, including intelligence tests. For example, high levels of anxiety can negatively affect memory and problem-solving skills, while a positive mood can facilitate better performance.

In contrast, the other choices suggest a more narrow view of what determines intelligence test outcomes, lacking the comprehensive perspective needed to understand the various influences at play. Therefore, the combination of environmental and emotional factors provides a more holistic comprehension of the dynamics that shape intelligence testing results.