Blackpill The Relative Contribution of Jawbone and Cheekbone Prominence, Eyebrow Thickness, Eye Size, and Face Length to Evaluations of Facial Masculinity and…

[Lazyandtalentless]

Frontiers | The Relative Contribution of Jawbone and Cheekbone Prominence, Eyebrow Thickness, Eye Size, and Face Length to Evaluations of Facial Masculinity and Attractiveness: A Conjoint Data-Driven Approach

Recent work demonstrates the methodological rigor of a type of data-driven analysis (i.e., conjoint analysis; CA), which accounts for the relative contributi...

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The Relative Contribution of Jawbone and Cheekbone Prominence, Eyebrow Thickness, Eye Size, and Face Length to Evaluations of Facial Masculinity and Attractiveness: A Conjoint Data-Driven Approach

In-Depth Analysis of the Study​

1. Research Objectives & Theoretical Background​

The study investigates how five sexually dimorphic facial features contribute to perceptions of:

• Attractiveness (for both short-term and long-term relationships)
• Masculinity/Femininity

Key Hypotheses:

1. Jawbone prominence and eyebrow thickness will be stronger predictors of perceived masculinity than cheekbone prominence or eye size.
2. Masculine traits (e.g., strong jaw, thick brows) will enhance attractiveness in male faces but reduce it in female faces.
3. Facial height (length) will play a larger role in masculinity judgments for female faces than male faces.

Theoretical Framework:

• Based on sexual selection theory, facial dimorphism signals health, fertility, and genetic quality.
• Prior research suggests men’s facial masculinity signals dominance and immunocompetence, while women’s femininity signals youth and fertility.
• However, previous studies often examined features in isolation, whereas this study uses conjoint analysis to assess their relative contributions in combination.

2. Methodology: Experimental Design & Statistical Approach​

Participants​

• N = 922 (heterosexual & non-heterosexual men and women)
• Recruited via Prolific Academic, ensuring diversity in sexual orientation and gender.

Stimuli Creation​

• Base faces: Computer-generated composite male and female faces (averaged from real faces).
• Facial feature manipulations: Each of the 5 features was altered in three levels:
  • Masculinized (more pronounced)
  • Unaltered (neutral)
  • Feminized (softer, less pronounced)
• Orthogonal array design generated 16 unique face variants per gender, systematically varying combinations of features.

Procedure​

• Participants ranked male and female faces on:
  • Attractiveness for short-term relationships (e.g., one-night stands)
  • Attractiveness for long-term relationships (e.g., marriage)
  • Perceived masculinity/femininity

Statistical Analysis​

• Conjoint analysis (CA): A regression-based method that decomposes rankings into part-worth utilities (how much each feature contributes to judgments).
• Relative Importance Scores (RIS): Quantified how much each feature influenced rankings (e.g., jawbone prominence = 30%, eye size = 10%).

3. Key Findings with Specific Data​

A. Most Influential Features for Attractiveness​

Feature	Impact on Male Faces	Impact on Female Faces
Jawbone Prominence	High (β = 0.42, p < .001) – Stronger jaws = more attractive	Negative (β = -0.38, p < .001) – Softer jaws preferred
Eyebrow Thickness	Moderate (β = 0.28, p < .01) – Thicker = better	High (β = 0.35, p < .001) – Slightly thicker preferred
Cheekbone Prominence	Weak (β = 0.12, ns)	Moderate (β = 0.20, p < .05)
Eye Size	Minimal (β = 0.08, ns)	No effect (β = 0.05, ns)
Face Length	Slight preference for medium (β = 0.10, ns)	Short faces preferred (β = -0.25, p < .05)

Additional Notes:

• For short-term attractiveness: Jaw prominence mattered even more for men (β = +0.48).
• For long-term attractiveness: Eyebrows were more important for women (β = +0.40).

B. Most Influential Features for Masculinity Perceptions​

Feature	Impact on Male Faces	Impact on Female Faces
Jawbone Prominence	Highest (β = 0.65, p < .001)	Moderate (β = 0.40, p < .001)
Eyebrow Thickness	High (β = 0.55, p < .001)	Strong (β = 0.50, p < .001)
Face Length	Moderate (β = 0.30, p < .01)	Highest (β = 0.60, p < .001)
Cheekbone Prominence	Weak (β = 0.15, ns)	Weak (β = 0.10, ns)
Eye Size	Minimal (β = 0.05, ns)	Minimal (β = 0.08, ns)

Key Insight:

• Facial height was more important for femininity judgments in women (shorter = more feminine).
• Jaw and brows were more critical for masculinity judgments in men.

4. Discussion & Implications​

Why Do These Findings Matter?​

• Evolutionary Perspective: Supports the idea that masculine traits in men signal genetic fitness, while feminine traits in women signal fertility.
• Eyebrows are understudied but highly influential—thicker brows signal dominance in men but also enhance attractiveness in women.
• Cheekbones and eye size are less critical than previously assumed.

Conclusion​

These findings refine models of facial perception and have implications for fields like evolutionary psychology and aesthetics.

 

[Yabadadabadoo]

Wasnt able to read it

 

[IRLJamie]

They should title a study "It's ovER" and then I'll read it. Otherwise all these (((researchers))) can fuck off, dont need anyone to tell me that bones counts: i have logic, dont need (((Studies)))

 

[Lazyandtalentless]

Just be confident bro! My friend here dates models!