Cognitive Reflection Test (CRT) Practice

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Test your cognitive skills with the Cognitive Reflection Test. Practice with challenging questions that test reflex and intuition. Improve your decision-making abilities and get ready for the CRT!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What environmental factor can lead to cognitive impairment?

Access to quality education
Exposure to pollutants or toxins
Strong family support systems
Adequate nutrition

The correct answer is: Exposure to pollutants or toxins

Exposure to pollutants or toxins is a significant environmental factor that can lead to cognitive impairment. This occurs because certain pollutants, such as heavy metals, pesticides, and industrial chemicals, can have detrimental effects on brain development and function. Studies have shown that exposure to these harmful substances may interfere with neurodevelopment in children, potentially leading to long-term cognitive deficits. In adults, continuous exposure may exacerbate cognitive decline and contribute to disorders such as dementia or other neurodegenerative diseases. In contrast, factors like access to quality education, strong family support systems, and adequate nutrition generally promote cognitive health and can mitigate the effects of stressors that could impair cognitive functioning. These protective factors encourage learning, resilience, and overall well-being, highlighting the crucial role that environmental contexts play in cognitive performance.