Harker and Keltner examined whether emotional well-being in later life could

  

Harker and Keltner examined whether emotional well-being in later life could be predicted by the facial expression of 141 women in their college yearbook photo. The predictor variable of greatest interest was the “positivity of emotional expression” in the college yearbook photo. They also had these photographs rated on physical attractiveness. They contracted the same women for follow-up psychosocial assessment at age 52 (and at other ages; data not shown here). Here is the correlation of these two predictors (based on the rating of the yearbook photo) with several of their self-reported social and emotional outcomes at age 52

In College photo

At age 54                           Physical Attractiveness              Positivity of Facial Expression

Negative emotionality                    .04                                               - .27

Nurturance                                     - .06                                                 .22

Well-being                                       .03                                                 .27

Which of the six correlations above are statistically significant (i) if you test each correlation using = .05, two-tailed, and (ii) if you set EWα = .05 and use Bonferroni-corrected test?

How would you interpret their results?

Can you make any causal inference from this study? Give reason.

Would it be appropriate for the researcher to generalize these findings to other groups, such as men?

What would additional information be available to you if you were able to see the scatter plots for these variables?