When Judging Other People, First Impressions Last

Credit: Wikimedia/ Christopher Michel – Chicago

For each photo, participants evaluated whether they would be friends with the woman, indicating likeability, and whether or not her personality was extroverted, agreeable, emotionally stable, conscientious and open to new experiences.

Between one month and six months later, the study participants met one of the photographed women – not realizing they had rated her photograph previously. They played a trivia game for 10 minutes then were instructed to get to know each other as well as possible for another 10 minutes. After each interaction, the study participants again evaluated the person’s likeability and personality traits.

The researchers found a strong consistency between how the participants evaluated the person based on the photograph and on the live interaction.

If study participants thought a person in a photograph was likeable and had an agreeable, emotionally stable, open-minded and conscientious personality, that impression carried through after the face-to-face meeting. Conversely, participants who thought the person in the photograph was unlikeable and had a disagreeable, emotionally unstable, close-minded, and disagreeable personality kept that judgment after they met.

“What is remarkable is that despite differences in impressions, participants were interacting with the same person, but came away with drastically different impressions of her even after a 20-minute face-to-face interaction,” Zayas said.

Zayas has two explanations for the findings. A concept called behavioral confirmation or self-fulfilling prophecy accounted for, at least in part, consistency in liking judgments. The study participants who had said they liked the person in the photograph tended to interact with them face to face in a friendlier, more engaged way, she said.

“They’re smiling a little bit more, they’re leaning forward a little bit more. Their nonverbal cues are warmer,” she said. “When someone is warmer, when someone is more engaged, people pick up on this. They respond in kind. And it’s reinforcing: The participant likes that person more.”

Regarding why participants showed consistency in judgments of personality, a halo effect could have come into play, she said. Participants who gave the photographed person a positive evaluation attributed other positive characteristics to them as well. “We see an attractive person as also socially competent, and assume their marriages are stable and their kids are better off. We go way beyond that initial judgment and make a number of other positive attributions,” Zayas said.

In a related study, she and her colleagues found that people said they would revise their judgment of people in photographs if they had the chance to meet them in person, because they’d have more information on which to base their assessment.

“And people really think they would revise,” she said. “But in our study, people show a lot more consistency in their judgments, and little evidence of revision.”

The study, “Impressions Based on a Portrait Predict, 1-Month Later, Impressions Following a Live Interaction,” was recently published in Social Psychological and Personality Science.

Cornell University