What is the type of test that measures a person's ability to perform tasks while thinking about their actions?

The correct answer is a divided attention task. This type of test is specifically designed to assess how well a person can perform multiple tasks simultaneously or manage different streams of information while maintaining cognitive control over their actions. It involves scenarios where a participant must focus on one or more tasks, often requiring them to shift their attention and respond to different stimuli concurrently.

Divided attention tasks are fundamental in studying cognitive processes, as they reveal insights into how attentional resources are allocated when a person is confronted with various demands. This kind of assessment is crucial in contexts such as driver safety, multitasking in professional environments, and cognitive function evaluations in psychological assessments.

Other types of tests listed have distinct purposes. A standardized test typically evaluates knowledge or skills across a broad range of subjects to compare individual performance against a norm. A cognitive assessment broadly examines various mental functions, including memory, reasoning, and problem-solving abilities, but does not specifically focus on multitasking or divided attention. Performance evaluations generally assess the output or effectiveness of an individual's performance in work-related tasks but do not inherently measure cognitive processing under divided attention scenarios.