Posts tagged psychology.

List of Cognitive Biases ›

Wikipedia list of cognitive biases - those traps we all fall into over, and over and over again.

Decision-making and behavioral biases

Many of these biases are studied for how they affect belief formation, business decisions, and scientific research.

Anchoring – the common human tendency to rely too heavily, or “anchor,” on one trait or piece of information when making decisions.

Attentional Bias – implicit cognitive bias defined as the tendency of emotionally dominant stimuli in one’s environment to preferentially draw and hold attention.

Backfire effect - Evidence disconfirming our beliefs only strengthens them.

Bandwagon effect – the tendency to do (or believe) things because many other people do (or believe) the same. Related to groupthink and herd behavior.

Bias blind spot – the tendency to see oneself as less biased than other people.[2]

Choice-supportive bias – the tendency to remember one’s choices as better than they actually were.[3]

Confirmation bias – the tendency to search for or interpret information in a way that confirms one’s preconceptions.[4]

Congruence bias – the tendency to test hypotheses exclusively through direct testing, in contrast to tests of possible alternative hypotheses.

Contrast effect – the enhancement or diminishing of a weight or other measurement when compared with a recently observed contrasting object.[5]

Denomination effect – the tendency to spend more money when it is denominated in small amounts (e.g. coins) rather than large amounts (e.g. bills).[6]

Distinction bias – the tendency to view two options as more dissimilar when evaluating them simultaneously than when evaluating them separately.[7]

Endowment effect – “the fact that people often demand much more to give up an object than they would be willing to pay to acquire it”.[8]

Experimenter’s or Expectation bias – the tendency for experimenters to believe, certify, and publish data that agree with their expectations for the outcome of an experiment, and to disbelieve, discard, or downgrade the corresponding weightings for data that appear to conflict with those expectations.[9]

Focusing effect – the tendency to place too much importance on one aspect of an event; causes error in accurately predicting the utility of a future outcome.[10]

Framing effect – drawing different conclusions from the same information, depending on how that information is presented.

Hostile media effect - the tendency to see a media report as being biased due to one’s own strong partisan views.

Hyperbolic discounting – the tendency for people to have a stronger preference for more immediate payoffs relative to later payoffs, where the tendency increases the closer to the present both payoffs are.[11]

Illusion of control – the tendency to overestimate one’s degree of influence over other external events.[12]

Impact bias – the tendency to overestimate the length or the intensity of the impact of future feeling states.[13]

Information bias – the tendency to seek information even when it cannot affect action.[14]

Irrational escalation – the phenomenon where people justify increased investment in a decision, based on the cumulative prior investment, despite new evidence suggesting that the decision was probably wrong.

Loss aversion – “the disutility of giving up an object is greater than the utility associated with acquiring it”.[15] (see also Sunk cost effects and Endowment effect).

Mere exposure effect – the tendency to express undue liking for things merely because of familiarity with them.[16]

Money illusion – the tendency to concentrate on the nominal (face value) of money rather than its value in terms of purchasing power.[17]

Moral credential effect – the tendency of a track record of non-prejudice to increase subsequent prejudice.

Negativity bias – the tendency to pay more attention and give more weight to negative than positive experiences or other kinds of information.

Neglect of probability – the tendency to completely disregard probability when making a decision under uncertainty.[18]

Normalcy bias – the refusal to plan for, or react to, a disaster which has never happened before.

Omission bias – the tendency to judge harmful actions as worse, or less moral, than equally harmful omissions (inactions).[19]

Outcome bias – the tendency to judge a decision by its eventual outcome instead of based on the quality of the decision at the time it was made.

Planning fallacy – the tendency to underestimate task-completion times.[13]

Post-purchase rationalization – the tendency to persuade oneself through rational argument that a purchase was a good value.

Pseudocertainty effect – the tendency to make risk-averse choices if the expected outcome is positive, but make risk-seeking choices to avoid negative outcomes.[20]

Reactance – the urge to do the opposite of what someone wants you to do out of a need to resist a perceived attempt to constrain your freedom of choice.

Restraint bias – the tendency to overestimate one’s ability to show restraint in the face of temptation.

Selective perception – the tendency for expectations to affect perception.

Semmelweis reflex – the tendency to reject new evidence that contradicts an established paradigm.[21]

Social comparison bias – the tendency, when making hiring decisions, to favour potential candidates who don’t compete with one’s own particular strengths.[22]

Status quo bias – the tendency to like things to stay relatively the same (see also loss aversion, endowment effect, and system justification).[23][24]

Unit bias — the tendency to want to finish a given unit of a task or an item. Strong effects on the consumption of food in particular.[25]

Wishful thinking – the formation of beliefs and the making of decisions according to what is pleasing to imagine instead of by appeal to evidence or rationality.[26]

Zero-risk bias – preference for reducing a small risk to zero over a greater reduction in a larger risk.

Biases in probability and belief

Many of these biases are often studied for how they affect business and economic decisions and how they affect experimental research.

Ambiguity effect – the tendency to avoid options for which missing information makes the probability seem “unknown.”[27]

Anchoring effect – the tendency to rely too heavily, or “anchor,” on a past reference or on one trait or piece of information when making decisions (also called “insufficient adjustment”).

Attentional bias – the tendency to neglect relevant data when making judgments of a correlation or association.

Availability heuristic – estimating what is more likely by what is more available in memory, which is biased toward vivid, unusual, or emotionally charged examples.

Availability cascade – a self-reinforcing process in which a collective belief gains more and more plausibility through its increasing repetition in public discourse (or “repeat something long enough and it will become true”).

Base rate neglect or Base rate fallacy – the tendency to base judgments on specifics, ignoring general statistical information.[28]

Belief bias – an effect where someone’s evaluation of the logical strength of an argument is biased by the believability of the conclusion.[29]

Clustering illusion – the tendency to see patterns where actually none exist.

Conjunction fallacy – the tendency to assume that specific conditions are more probable than general ones.[30]

Forward Bias - the tendency to create models based on past data which are validated only against that past data.

Gambler’s fallacy – the tendency to think that future probabilities are altered by past events, when in reality they are unchanged. Results from an erroneous conceptualization of the Law of large numbers. For example, “I’ve flipped heads with this coin five times consecutively, so the chance of tails coming out on the sixth flip is much greater than heads.”

Hindsight bias – sometimes called the “I-knew-it-all-along” effect, the tendency to see past events as being predictable[31] at the time those events happened.(sometimes phrased as “Hindsight is 20/20”)

Illusory correlation – inaccurately perceiving a relationship between two events, either because of prejudice or selective processing of information.[32]

Observer-expectancy effect – when a researcher expects a given result and therefore unconsciously manipulates an experiment or misinterprets data in order to find it (see also subject-expectancy effect).

Optimism bias – the tendency to be over-optimistic about the outcome of planned actions.[33]

Ostrich effect – ignoring an obvious (negative) situation.

Overconfidence effect – excessive confidence in one’s own answers to questions. For example, for certain types of questions, answers that people rate as “99% certain” turn out to be wrong 40% of the time.[34][35]

Positive outcome bias – the tendency of one to overestimate the probability of a favorable outcome coming to pass in a given situation (see also wishful thinking, optimism bias, and valence effect).

Pareidolia – a vague and random stimulus (often an image or sound) is perceived as significant, e.g., seeing images of animals or faces in clouds, the man in the moon, and hearing hidden messages on records played in reverse.

Pessimism bias – the tendency for some people, especially those suffering from depression, to overestimate the likelihood of negative things happening to them.

Primacy effect – the tendency to weigh initial events more than subsequent events.[36]

Recency effect – the tendency to weigh recent events more than earlier events (see also peak-end rule).

Disregard of regression toward the mean – the tendency to expect extreme performance to continue.

Stereotyping – expecting a member of a group to have certain characteristics without having actual information about that individual.

Subadditivity effect – the tendency to judge probability of the whole to be less than the probabilities of the parts.

Subjective validation – perception that something is true if a subject’s belief demands it to be true. Also assigns perceived connections between coincidences.

Well travelled road effect – underestimation of the duration taken to traverse oft-traveled routes and over-estimate the duration taken to traverse less familiar routes.

Social biases

Most of these biases are labeled as attributional biases.

Actor–observer bias – the tendency for explanations of other individuals’ behaviors to overemphasize the influence of their personality and underemphasize the influence of their situation (see also Fundamental attribution error), and for explanations of one’s own behaviors to do the opposite (that is, to overemphasize the influence of our situation and underemphasize the influence of our own personality).

Dunning–Kruger effect – a twofold bias. On one hand the lack of metacognitive ability deludes people, who overrate their capabilities. On the other hand, skilled people underrate their abilities, as they assume the others have a similar understanding.[37]

Egocentric bias – occurs when people claim more responsibility for themselves for the results of a joint action than an outside observer would.

Forer effect (aka Barnum effect) – the tendency to give high accuracy ratings to descriptions of their personality that supposedly are tailored specifically for them, but are in fact vague and general enough to apply to a wide range of people. For example, horoscopes.

False consensus effect – the tendency for people to overestimate the degree to which others agree with them.[38]

Fundamental attribution error – the tendency for people to over-emphasize personality-based explanations for behaviors observed in others while under-emphasizing the role and power of situational influences on the same behavior (see also actor-observer bias, group attribution error, positivity effect, and negativity effect).[39]

Halo effect – the tendency for a person’s positive or negative traits to “spill over” from one area of their personality to another in others’ perceptions of them (see also physical attractiveness stereotype).[40]

Illusion of asymmetric insight – people perceive their knowledge of their peers to surpass their peers’ knowledge of them.[41]

Illusion of transparency – people overestimate others’ ability to know them, and they also overestimate their ability to know others.

Illusory superiority – overestimating one’s desirable qualities, and underestimating undesirable qualities, relative to other people. (Also known as “Lake Wobegon effect,” “better-than-average effect,” or “superiority bias”).[42]

Ingroup bias – the tendency for people to give preferential treatment to others they perceive to be members of their own groups.

Just-world phenomenon – the tendency for people to believe that the world is just and therefore people “get what they deserve.”

Moral luck – the tendency for people to ascribe greater or lesser moral standing based on the outcome of an event rather than the intention

Outgroup homogeneity bias – individuals see members of their own group as being relatively more varied than members of other groups.[43]

Projection bias – the tendency to unconsciously assume that others (or one’s future selves) share one’s current emotional states, thoughts and values.[44]

Self-serving bias – the tendency to claim more responsibility for successes than failures. It may also manifest itself as a tendency for people to evaluate ambiguous information in a way beneficial to their interests (see also group-serving bias).[45]

System justification – the tendency to defend and bolster the status quo. Existing social, economic, and political arrangements tend to be preferred, and alternatives disparaged sometimes even at the expense of individual and collective self-interest. (See also status quo bias.)

Trait ascription bias – the tendency for people to view themselves as relatively variable in terms of personality, behavior and mood while viewing others as much more predictable.

Ultimate attribution error – similar to the fundamental attribution error, in this error a person is likely to make an internal attribution to an entire group instead of the individuals within the group.

Memory errors and biases

Cryptomnesia – a form of misattribution where a memory is mistaken for imagination.

Egocentric bias – recalling the past in a self-serving manner, e.g. remembering one’s exam grades as being better than they were, or remembering a caught fish as being bigger than it was.

False memory – confusion of imagination with memory, or the confusion of true memories with false memories.

Hindsight bias – filtering memory of past events through present knowledge, so that those events look more predictable than they actually were; also known as the “I-knew-it-all-along effect.”[31]

Positivity effect – older adults remember relatively more positive than negative things, compared with younger adults[46]

Reminiscence bump – the effect that people tend to recall more personal events from adolescence and early adulthood than from other lifetime periods.

Rosy retrospection – the tendency to rate past events more positively than they had actually rated them when the event occurred.

Self-serving bias – perceiving oneself responsible for desirable outcomes but not responsible for undesirable ones.

Suggestibility – a form of misattribution where ideas suggested by a questioner are mistaken for memory.

Telescoping effect – the effect that recent events appear to have occurred more remotely and remote events appear to have occurred more recently.

Von Restorff effect – the tendency for an item that “stands out like a sore thumb” to be more likely to be remembered than other items.

Common theoretical causes of some cognitive biases

Bounded rationality – limits on optimization and rationality

Attribute substitution – making a complex, difficult judgment by unconsciously substituting an easier judgment

Attribution theory, especially:

Salience

Cognitive dissonance, and related:

Impression management Self-perception theory

Heuristics, including:

Availability heuristic – estimating what is more likely by what is more available in memory, which is biased toward vivid, unusual, or emotionally charged examples[32]

Representativeness heuristic – judging probabilities on the basis of resemblance[32]

Affect heuristic – basing a decision on an emotional reaction rather than a calculation of risks and benefits

Introspection illusion

Adaptive bias

Misinterpretations or misuse of statistics.

Stephen Wiltshire from London is a star among savants. Stephen is autistic. He did not speak his first words “pencil” and “paper” until he was 5. Yet, when he was 11 he drew a perfect aerial view of London after only one helicopter ride. For this film we’re testing the “Living camera” in Rome. (ColourField production)

Army Deploys Psy-Ops on U.S. Senators ›

theatlantic:

This is like something right out of “The Manchurian Candidate”:

The U.S. Army illegally ordered a team of soldiers specializing in “psychological operations” to manipulate visiting American senators into providing more troops and funding for the war, Rolling Stone has learned – and when an officer tried to stop the operation, he was railroaded by military investigators.

The orders came from the command of Lt. Gen. William Caldwell, a three-star general in charge of training Afghan troops – the linchpin of U.S. strategy in the war. Over a four-month period last year, a military cell devoted to what is known as “information operations” at Camp Eggers in Kabul was repeatedly pressured to target visiting senators and other VIPs who met with Caldwell. When the unit resisted the order, arguing that it violated U.S. laws prohibiting the use of propaganda against American citizens, it was subjected to a campaign of retaliation.

“My job in psy-ops is to play with people’s heads, to get the enemy to behave the way we want them to behave,” says Lt. Colonel Michael Holmes, the leader of the IO unit, who received an official reprimand after bucking orders. “I’m prohibited from doing that to our own people. When you ask me to try to use these skills on senators and congressman, you’re crossing a line.”

Read the full story at Rolling Stone

(via m1k3y)

(via constantflux1-deactivated2011020)

We do not believe in ourselves until someone reveals that deep inside us is valuable, worth listening to, worthy of our trust, sacred to our touch. Once we believe in ourselves we can risk curiosity, wonder, spontaneous delight or any experience that reveals the human spirit.

e.e. cummings  (via psychotherapy)

As Above, So Below: Child Abuse ›

Violence, manipulation and the like are not the way to raise children. Do not bring children into the world if you cannot master your personal demons first. It’s time to take the next step as a species and leave behind such destructive behavior.

metaconscious:

“What are your thoughts about child abuse?”

Video of a Mormon mother disciplining her son.

— Anonymous

Though the abuse factor is relatively low in this video (she catches her son lying and dishes out punishment via a serving of hot sauce with a cold shower - yeah, disturbingly…

600 plays

psychotherapy:

Siblings Share Genes, But Rarely Personalities (audio via NPR’s Morning Edition)

Tom and Eric Hoebbel

“…For most of history, psychologists thought of the study of siblings as backwater: Parenting was important — siblings were not. Then in the 1980s, a researcher named Robert Plomin published a surprising paper in which he reviewed the three main ways psychologists had studied siblings: physical characteristics, intelligence and personality. According to Plomin, in two of these areas, siblings were really quite similar.

Physically, siblings tended to differ somewhat, but they were a lot more similar on average when compared to children picked at random from the population. That’s also true of cognitive abilities.

“The surprise,” says Plomin, “is when you turn to personality.”

Turns out that on tests that measure personality — stuff like how extroverted you are, how conscientious — siblings are practically like strangers…

(full transcript here)

Factors Affecting Behavior Change ›

Serious challenges take more than a band-aid fix. Slowing down climate change is going to take a drastically different lifestyle for many people. But people are reluctant to change. Is it because climate change doesn’t seem like a threat?

Possibly, but consider this from a speech by Dr. Edward Miller, the dean of the medical school and CEO of the hospital at Johns Hopkins University:

“If you look at people after coronary-artery bypass grafting two years later, 90% of them have not changed their lifestyle,” Miller said. “And that’s been studied over and over and over again. And so we’re missing some link in there. Even though they know they have a very bad disease and they know they should change their lifestyle, for whatever reason, they can’t.”

Lost all hope? Are people stubborn animals, unwilling to change direction while charging full speed toward the cliff?

Why could it be - or is it that in the absence of certain key factors, we all fail to change our behaviour or do certain things, even when we know we should? Let’s recap on the points Deutschman mentions as being key to change:

  1. Emotion “In highly successful change efforts, people find ways to help others see the problems or solutions in ways that influence emotions, not just thought.”
  2. Framing “Joy is a more powerful motivator than fear”… The big challenge in trying to change how people think is that their minds rely on frames, not facts.
  3. Radical change …people who make moderate changes in their diets get the worst of both worlds: They feel deprived and hungry because they aren’t eating everything they want, but they aren’t making big enough changes to quickly see an improvement
  4. Support Even when leaders have reframed the issues brilliantly, it’s still vital to give people the multifaceted support they need.
  5. Practice “When you’re young, almost everything you do is behavior-based learning — it’s an incredibly powerful, plastic period,” he says. “What happens that becomes stultifying is you stop learning and you stop the machinery, so it starts dying.”

So how can we beat procrastination?

Allow yourself to get passionate about what you do - you are the best at solving something, you don’t give up, you never let people down, nobody gets left behind - whatever chutzpah statement that gets you passionate about doing something, well - dare think it and be proud of it rather than retreat into an ocean of rational thought.

If the task is something you have procrastinated a long time about, maybe it is less about trying to break the task down into manageable ‘bite-size’ chunks that allows you to fool yourself into thinking you are achieving lasting change - maybe it is instead about delving into the task heart and soul and deliberately devoting a lot of your waking hours to it, simply to consciously generate a shift in your mindset and achieve visible change.

Find people you can share your passion with and who are into similar things, getting support is often something we think about only when it’s too late and we are already slipping back into our old habits. Finding people when you are still on the high of radical change is easier too.

We need not so much a philosophy of the social sciences of the present and the past as we need a philosophy for the social sciences of the future, and indeed, for anyone who wants a deeper understanding of social phenomena.

John Searle, Making the Social World, p. 5

This book is going to be the central text upon which my History & Theory of Geography term paper is built. It is exactly what I want: an analytic approach to social phenomena that avoids the needless reductionism of many other works of analytic philosophy on the same topic.

(via newleft)

Intentionality Bias and Alcohol ›

Some useful information on how alcohol affects us, supported by research, and presented in an easy to digest format.

The real gem for me is that drunk people are more likely to think that someone did something on purpose, that the other person meant to start some shit: the spilled drink, the off-color joke, the brushed backside, etc. These are things most of us can reason through quickly enough while sober…

But, as you might have guessed, that reasoned thinking gets lost when there’s a night’s worth of alcohol moving through your brain. In the Personality and Social Psychology Bulletin, researchers detail a study with 92 men, made to go three hours without food, then given a shot of either juice, or juice with more than a shot of pure alcohol. All the glasses were rimmed with alcohol to mask the placebos. The men thought they took part in a taste test, then did unrelated tasks for 30 minutes.

After that, they were asked to determine whether a series of deliberate, accidental, or vague stated actions (“He deleted the email,” “She looked for her keys,” “She tripped on the jump rope,” etc.) were deliberate or accidental. Ars Technica sums up the results:

Nearly all the participants, no matter what condition, judged all the unambiguous statements correctly. However, when the actions were ambiguous and could have been performed either intentionally or unintentionally, the “drunk” participants were much more likely to perceive the actions as deliberate than the sober participants were.

We’d like to believe that most of what we know is accurate and that if presented with facts to prove we’re wrong, we would sheepishly accept the truth and change our views accordingly.

A new body of research out of the University of Michigan suggests that’s not what happens, that we base our opinions on beliefs and when presented with contradictory facts, we adhere to our original belief even more strongly.

The phenomenon is called backfire.

NPR (via kateoplis)

Everything great that we know has come to us from neurotics. They alone have founded our religions and created our masterpieces. Never will the world be aware of how much it owes to them, nor above all what they have suffered in order to bestow their gifts on it.

Marcel Proust (via psychotherapy)

We have, as human beings, a storytelling problem. We’re a bit too quick to come up with explanations for things we don’t really have an explanation for.

Malcolm Gladwell, Blink. (via reikurosawa)

(via mysteriousdancing)