List only the experimental variables from the following:

1. Warrant: The diverse contributions of individuals to group problem solving are inherently valuable.
- Experiment: Assess problem-solving outcomes in varied social groups with heterogeneous versus homogeneous individual traits (controlling for group size, type of problem, and available resources) to determine the impact of diversity on creative solutions.

2. Warrant: Creativity has genetic underpinnings shared across humanity, giving everyone the potential for artistic expression.
- Experiment: Perform a twin study measuring artistic ability in monozygotic versus dizygotic twins (controlling for environmental factors such as education and exposure to art) to evaluate the heritability of artistic talent.

3. Warrant: Social emotions developed due to their importance in group survival and cohesion, which gives individual emotions collective value.
- Experiment: Observe the impact of individuals expressing emotions in a cooperative context versus a neutral context (controlling for emotional intensity, communication means, and group task) on group bonding and task efficiency.

4. Warrant: Innovativeness, driven by neural reward systems, enriches society and is an expression of the inherent worth of unique human perspectives.
- Experiment: Using neuroimaging, investigate the relationship between reward pathway activity and measures of societal contribution in innovators versus non-innovators (controlling for age, education, and occupational field).

5. Warrant: Cultural and biological evolution work together to shape cognitive abilities, giving each person a role in societal progress, thus affirming their worth.
- Experiment: Compare cognitive development trajectories in societies with varying levels of cultural complexity (controlling for genetics, socioeconomic status, and overall health) to identify correlations between cultural factors and cognitive enhancement.

6. Warrant: Stressful experiences foster innovation and resilience which are essential for human development.
- Experiment: Examine the long-term outcomes of populations experiencing controlled levels of stress (with controlled environments and types of stressors) on generational innovation and collective strength metrics.

7. Warrant: Cross-domain thinking reveals the value of individual cognitive styles in providing diverse problem-solving approaches, validating their dignity.
- Experiment: Test problem-solving effectiveness in groups with individuals trained in cross-domain thinking versus groups with a single-domain focus (controlling for difficulty level and the nature of problems).

8. Warrant: The complexity of individual mental capacity evolution should be respected for its inherent cognitive dignity.
- Experiment: Trace the developmental bioelectric patterns in subjects from infancy into adulthood (controlling for environmental influences) and correlate them with measures of cognitive ability to demonstrate the complexity of cognitive evolution.

9. Warrant: The heritability of brain and face structures plays a role in social interaction, and individuals serve a fundamental role in fostering community.
- Experiment: Analyze social interaction quality in relation to facial recognition and brain structure similarities (controlling for cultural background and language) to determine the evolutionary advantage.

10. Warrant: Creativity and archetype formation in individuals manifest culture and contribute to shared narratives, emphasizing inherent narrative worth.
- Experiment: Examine the creativity levels and the use of common archetypes in a diverse sample of storytellers (controlling for cultural influence, education, and audience feedback) to assess the formation of culture through personal narrative construction.

11. Warrant: The human capacity to create and appreciate aesthetics is universal and enhances life’s quality, indicating intrinsic dignity.
- Experiment: Study the impact of aesthetic exposure and creative expression on well-being across different cultures (controlling for economic status and access to artistic mediums) to evaluate the universal capacity for appreciating and enhancing life quality.

12. Warrant: Serendipity in innovation highlights the value of individual differences and the positive role of randomness in societal progress.
- Experiment: Measure innovation outcomes in scenarios with controlled introduction of random variables (controlling for the diversity of participants and the types of innovation tasks) to understand the role of serendipity and personal distinctiveness in societal advancement.

13. Warrant: Human creativity, similar to AI algorithms, signifies a complex and significant process worthy of dignity.
- Experiment: Compare AI-generated creative works with those of humans under controlled conditions (controlling for themes, complexity, and tools used) to show parallels and the complexity of human creativity in algorithmic terms.

14. Warrant: Complex emotions linked with societal frameworks are intrinsic to community development and individual value.
- Experiment: Track the relationship between the expression of complex emotions and societal cohesion in different community setups (controlling for community size, structure, and cultural norms).

15. Warrant: The brain’s capacity to navigate complex decisions reflects individual agility and worth.
- Experiment: Examine decision-making processes of individuals with varying degrees of dorsal-lateral prefrontal cortex activity (controlling for age, education, and decision-making context).

16. Warrant: The diversified language reflects societal complexity and the value of individual communicative contributions.
- Experiment: Analyze linguistic diversity within multilingual societies (controlling for education, age distribution, and geographical location) to determine individual contributions to language evolution and complexity.

17. Warrant: The drive towards perfection, as an evolutionary trait, adds to societal refinement and individual worth.
- Experiment: Track societal trends and markers of perfectionism over generations (controlling for cultural attitudes towards success and definitions of perfection) to investigate the contribution to societal enhancement.

18. Warrant: Individuals’ capacity to adapt within complex adaptive systems is an attribute of inherent worth in evolution.
- Experiment: Monitor individual and collective adaptability in response to controlled environmental changes (controlling for baseline adaptability levels, communication methods, and support systems).

19. Warrant: Emotional regulation’s co-evolution with immune systems indicates the significance of individual emotional control for community well-being.
- Experiment: Study the correlation between emotional regulation strategies and immune system responses (controlling for lifestyle factors, genetic predispositions, and stress levels) in community-based settings.

20. Warrant: Generative algorithms in fiction reflect humanity’s creative evolution, thus deserving respect for individuals’ imaginative capacities.
- Experiment: Compare the creative outputs of AI generative algorithms with human-made narratives (controlling for thematic constraints, narrative complexity, and the purpose of the narratives) to assess the shared imaginative heritage.