What a tragic waste of data and time. Not one mention of confidence intervals (are _any_ of these differences statistically significant??), selection bias (who

What a tragic waste of data and time. Not one mention of confidence intervals (are _any_ of these differences statistically significant??), selection bias (who was more likely to submit photos, and why did they choose a specific photo??), or sampling errors (who rated the attributes, and how consistent were they?). The OK Cupid blog posts are a great source for similar (but statistically sound) studies.