Alex Brogan Profile picture
Feb 18 9 tweets 2 min read
5 concepts you should know in 5 Tweets:

DISC Model
Instrumental Conditioning
Blind spot
Choice-supportive bias
Denomination Effect

Thread 👇
DISC Model

A model of human behaviour commonly used in business settings describing four distinct temperaments that can be found in individuals

D: Dominance
I: Influence
S: Steadiness
C: Compliance DISC Model
Instrumental Conditioning

Occurs when you choose to continue, or discontinue, a behaviour based on the positive or negative reinforcement you've received for that behaviour previously

Also known as "trial-and-error" learning
Blind spot

An area of thought or perception that goes unchecked and can have negative consequences

Something you systematically overlook either intentionally, but more likely, subconsciously. It leads to a distortion of reality and inferior thinking
Choice-supportive bias

The tendency to remember our choices as better than they actually were

We choose option A over B, we are likely to dismiss faults of A, while amplifying faults of B. Conversely, we'll amplify the advantages of A and de-emphasize those of option B
Denomination Effect

We are less likely to spend money in the form of large bills relative to the equivalent amount in smaller bills

A $50 note has the same value as 10 $5 notes, but we will invariably spend the lower value notes before we even think of touching the $50
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More from @_alexbrogan

Feb 20
15 powerful concepts I wish I knew earlier

A thread...
Rhyme as a reason effect

We are more likely to believe statements that contain a rhyme, compared to statements that don't

"Woes unite foes"
"Woes unite enemies"
"Misfortune unites enemies"

Which seems more believable? Be wary of this in advertising or persuasion
Selective perception

The tendency not to notice and more quickly forget stimuli that cause emotional discomfort and contradict our prior beliefs

Can cause issues when you allow small problems to become bigger problems through a lack of appropriate attention
Read 17 tweets
Feb 19
10 concepts to make you a tiny bit smarter than you were yesterday:
Irrational escalation

The phenomenon where people increase their investment in a decision despite new evidence suggesting that the decision was probably wrong

May include money ("throwing good money after bad"), time, or — in the case of military strategy — human lives
Less-is-better effect

People sometimes prefer the worse of two options, but only when the options are presented separately

When people consider both their choices together, their preferences reverse, so that the less-is-better effect disappears
Read 12 tweets
Feb 19
10 concepts for better thinking:

Thread 👇
Decoy Effect

Describes how, when we are choosing between two alternatives, the addition of a third, less attractive option (decoy) can influence our perception of the original two choices Decoy Effect
Distinction Bias

Describes how, in decision-making, we tend to overvalue the differences between two options when we examine them together

Conversely, we consider these differences to be less important when we evaluate the options separately
Read 14 tweets
Feb 18
5 concepts I wish I knew earlier

A thread...
Empathy Gap

Underestimating the way behaviour is largely affected by one’s mental state when you're not currently in that mental state

If you feel calm, you'll find it difficult to predict how you'll act if someone angers you
Meat Paradox

Many of us experience the 'meat paradox', whereby we simultaneously care for animals such as cows, yet also consume them as meat

Applies to many other moral issues where we stay in the 'dark', to protect the illusion that we are morally consistent and sensible
Read 9 tweets
Feb 17
5 concepts you should know in 5 Tweets:

Ringelmann Effect
Group Attribution Error
90-9-1 Rule
Braess's Paradox
Pollyanna Principle

Thread 👇
Ringelmann Effect

As a group size increases, individuals tend to become increasingly less productive

Consider a tug of war. As more people are involved, their average performance tends to decrease because each participant feels that their own effort is not critical
Group Attribution Error

Falsely assuming that the views and decision outcomes of a collective group reflect the view of each member in that group, even when information is available that indicates that all members do not support the decision

Closely related to steretyping
Read 9 tweets
Feb 17
5 concepts to level up:

Delayed Gratification
Base Rate Neglect
Neglect of Probability
Friendship Paradox
Woozle Effect

Thread 👇
Delayed Gratification

The process an individual undergoes when resisting the temptation of an immediate reward in preference for a later reward

We live in a world of instant gratification: those who master the power of delayed gratification are the ones who win long term
Base Rate Neglect

A tendency to ignore the a priori probability of something by putting heavier weight on appealing information about an individual’s case

Only 3% of applicants make it into this school, but my daughter is brilliant. I’m sure they’re going to accept her!
Read 9 tweets

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