Thursday, September 3, 2015

HALO EFFECT


Introduction
Halo effect is a cognitive bias in which an observer's overall impression of a person, company, brand, or product influences the observer's feelings and thoughts about that entity's character or properties. It was named by psychologist Edward Thorndike in reference to a person being perceived as having a halo.
Subsequent researchers have studied it in relation to attractiveness and its bearing on the judicial and educational systems. The halo effect is a specific type of confirmation bias, wherein positive feelings in one area cause ambiguous or neutral traits to be viewed positively. Edward Thorndike originally coined the term referring only to people; however, its use has been greatly expanded especially in the area of brand marketing.
The term "halo" is used in analogy with the religious concept: a glowing circle that can be seen floating above the heads of saints in countless medieval and Renaissance paintings. The saint's face seems bathed in heavenly light from his or her halo. Thus, by seeing that somebody was painted with a halo, the observer can tell that this must have been a good and worthy person. In other words, the observer is transferring their judgment from one easily observed characteristic of the person (painted with a halo) to a judgment of that person's character.
The Halo Effect works both in both positive and negative directions:
If you like one aspect of something, you'll have a positive predisposition towards everything about it.
If you dislike one aspect of something, you'll have a negative predisposition towards everything about it.
The halo effect works in both positive and negative directions (the horns effect): If the observer like one aspect of something, they will have a positive predisposition toward everything about it. If the observer dislikes one aspect of something, they will have a negative predisposition toward everything about it.
Edward Thorndike, known for his contributions to educational psychology, coined the phrase "halo effect" and was the first to support it with empirical research. He gave the phenomenon its name in his 1920 article “A Constant Error in Psychological Ratings”. He had noted in a previous study made in 1915 that estimates of traits in the same person were very highly and evenly correlated. In “Constant Error”, Thorndike set out to replicate the study in hopes of pinning down the bias that he thought was present in these ratings.
Role of attractiveness
A person’s attractiveness has also been found to produce a halo effect. Attractiveness provides a valuable aspect of the halo effect to consider because of its multifaceted nature; attractiveness may be influenced by several specific traits. These perceptions of attractiveness may affect judgments tied to personality traits. Physical attributes contribute to perceptions of attractiveness (i.e. weight, hair, eye colour). For example, someone who is perceived as attractive, due in part to physical traits, may be more likely to be perceived as kind or intelligent. The role of attractiveness in producing the halo effect has been illustrated through a number of studies. Recent research, for example, has revealed that attractiveness may affect perceptions tied to life success and personality. In this study, attractiveness was correlated with weight, indicating that attractiveness itself may be influenced by various specific traits. Included in the personality variables were trustworthiness and friendliness. People perceived as being more attractive were more likely to be perceived as trustworthy and friendly. What this suggests is that perceptions of attractiveness may influence a variety of other traits, which supports the concept of the halo effect.
Reverse-halo effect
The devil effect, also known as the reverse halo effect, is when people allow an undesirable trait to influence their evaluation of other traits. The Guardian wrote of the devil effect in relation to Hugo Chavez: "Some leaders can become so demonised that it's impossible to assess their achievements and failures in a balanced way."
The relation of a crime to attractiveness is also subject to the halo effect. A study presented two hypothetical crimes: a burglary and a swindle. The burglary involved a woman illegally obtaining a key and stealing $2,200; the swindle involved a woman manipulating a man to invest $2,200 in a non-existent corporation. The results showed that when the offense was not related to attractiveness (as in the burglary) the unattractive defendant was punished more severely than the attractive one. However, when the offense was related to attractiveness (the swindle), the attractive defendant was punished more severely than the unattractive one. The study imputes that the usual leniency given to the attractive woman (as a result of the halo effect) was negated or reversed when the nature of the crime involved her looks.
Halo effect and branding
The halo effect is also present in the field of brand marketing. One common halo effect is when the perceived positive features of a particular item extend to a broader brand. A notable example is the manner in which the popularity of Apple’s iPod generated enthusiasm for the corporation's other products. Another example is Subway's brand image as a "healthy" variety of fast food. The perception of a restaurant as "healthy" causes consumers to underestimate the caloric content of its dishes. Marketers take advantage of the halo effect to sell products and services. When a celebrity spokesperson endorses a particular item, our positive evaluations of that individual can spread to our perceptions of the product itself. Job applicants are also likely to feel the impact of the halo effect. If a prospective employer views the applicant as attractive or likeable, they are more likely to also rate the individual as intelligent, competent, and qualified.
The term "halo effect" has also been applied to human rights organizations that have used their status to move away from their stated goals. Political scientist Gerald Steinberg has claimed that non-governmental organizations (NGOs) take advantage of the "halo effect" and are "given the status of impartial moral watchdogs" by governments and the news media.
The Ronald McDonald House, a widely known NGO, openly celebrates the positive outcomes it receives from the halo effect. The web page for the Ronald McDonald House in Durham, North Carolina, U.S. states that 95% of survey participants were aware of Ronald McDonald House Charities. This awareness is attributed to the halo effect, as employees, customers, and stakeholders are more likely to be involved in a charity that they recognize and trust, with a name and logo that are familiar.
A brand's halo effect can protect its reputation in the event of a crisis. An event that is detrimental to a brand that is viewed unfavourably would not be as threatening or damaging to a brand that consumers view favourably.
Observations
"In the classroom, teachers are subject to the halo effect rating error when evaluating their students. For example, a teacher who sees a well-behaved student might tend to assume this student is also bright, diligent, and engaged before that teacher has objectively evaluated the student's capacity in these areas. When these types of halo effects occur, they can affect students' approval ratings in certain areas of functioning and can even affect students' grades."
(Rasmussen, Encyclopaedia of Educational Psychology, Volume 1, 2008)
"In the work setting, the halo effect is most likely to show up in a supervisor's appraisal of a subordinate's job performance. In fact, the halo effect is probably the most common bias in performance appraisal. Think about what happens when a supervisor evaluates the performance of a subordinate. The supervisor may give prominence to a single characteristic of the employee, such as enthusiasm, and allow the entire evaluation to be coloured by how he or she judges the employee on that one characteristic. Even though the employee may lack the requisite knowledge or ability to perform the job successfully, if the employee's work shows enthusiasm, the supervisor may very well give him or her a higher performance rating than is justified by knowledge or ability."
(Schneider, F.W., Gruman, J. A., & Coutts, L. M., Applied Social Psychology, 2012)
The Halo Effect at Work in the Real World
As you read above, the halo effect can influence how teachers treat students, but it can also impact how students perceive teachers. In one study, researchers found that when an instructor was viewed as warm and friendly, students also rated him as more attractive, appealing, and likeable.
Marketers take advantage of the halo effect to sell products and services. When a celebrity spokesperson endorses a particular item, our positive evaluations of that individual can spread to our perceptions of the product itself.
Job applicants are also likely to feel the impact of the halo effect. If a prospective employer views the applicant as attractive or likeable, they are more likely to also rate the individual as intelligent, competent, and qualified.
So, the next time you trying to make an evaluation of another person, whether it is deciding which political candidate to vote for or which movie to see on a Friday night, consider how your overall impressions of an individual might influence your evaluations of other characteristics. Does your impression of a candidate being a good public speaker lead you to feel that she is also smart, kind, and hard-working? Does thinking that a particular actor is good-looking also lead you to think that he is also a compelling actor?
Being aware of the halo effect, however, does not make it easy to avoid its influence on our perceptions and decisions.










            
Conclusion
It’s important to keep the Halo Effect in mind as you are planning sites, designing flows, defining key performance indicators (KPIs), and measuring your site because drop-offs at any one point in your users’ experience may indicate a poor first impression via design, content, site performance, and so on. Additionally, it’s important to supplement quantitative data sources with qualitative methods such as usability testing.


Done By
Name: S.Ragavendran_15MBA1048
Name: S.Bhaargav_15MBA1020



Wednesday, September 2, 2015

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