Why incompetent people think they're amazing - David Dunning

11,967,998 views ・ 2017-11-09

TED-Ed


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譯者: Sylvia He 審譯者: Coco Shen
00:07
Are you as good at things as you think you are?
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你真的有自己想像的那麼棒嗎?
00:10
How good are you at managing money?
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你的理財能力怎麼樣?
00:13
What about reading people's emotions?
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解讀別人的情感的能力呢?
00:16
How healthy are you compared to other people you know?
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你比你認識的人更健康嗎?
00:20
Are you better than average at grammar?
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你的語法高於水平嗎?
00:23
Knowing how competent we are
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清楚的知道自己能力
00:24
and how are skill stack up against other people's
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和客觀的把自己 和別人的能力做比較,
00:27
is more than a self-esteem boost.
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不止會增加一個人的自信,
00:30
It helps us figure out when we can forge ahead on our own decisions and instincts
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它還會幫助我們相信自己的本能和判斷,
00:34
and when we need, instead, to seek out advice.
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和需要的時候徵求別人的意見。
00:39
But psychological research suggests that we're not very good
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但是心理學研究顯示, 我們很少
00:42
at evaluating ourselves accurately.
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能夠正確地衡量自己的能力。
00:45
In fact, we frequently overestimate our own abilities.
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事實上, 我們經常高估自己的能力。
00:50
Researchers have a name for this phenomena,
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學術界稱此現象為
00:52
the Dunning-Kruger effect.
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達克效應。
00:55
This effect explains why more than 100 studies
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在超過 100 個研究中, 這個效應解釋了
00:58
have shown that people display illusory superiority.
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人們普遍有虛幻的優越感。
01:02
We judge ourselves as better than others
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我們高估自己的程度
01:04
to a degree that violates the laws of math.
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甚至超越了數學的原理。
01:08
When software engineers at two companies were asked to rate their performance,
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有個研究讓兩個軟體公司裡的 程式設計師評估自己的能力,
01:12
32% of the engineers at one company and 42% at the other
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兩個公司分別有 32% 和 42% 的程式設計師
01:17
put themselves in the top 5%.
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覺得自己是頂尖的 5%。
01:21
In another study, 88% of American drivers
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另一個研究顯示 88% 的美國人
01:25
described themselves as having above average driving skills.
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認為自己的駕駛能力高於平均。
01:29
These aren't isolated findings.
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這種數據不在少數。
01:31
On average, people tend to rate themselves better than most
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一般來說, 人們會認為自己在
01:34
in disciplines ranging from health, leadership skills, ethics, and beyond.
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健康、領導能力、 倫理等等方面都優於平均。
01:42
What's particularly interesting is that those with the least ability
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有意思的是,最沒有能力的人
01:45
are often the most likely to overrate their skills to the greatest extent.
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經常會最高估自己。
01:50
People measurably poor at logical reasoning,
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在邏輯、
01:53
grammar,
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語法、
01:54
financial knowledge,
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金融知識、
01:55
math,
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01:55
emotional intelligence,
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數學、
情商、
01:57
running medical lab tests,
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做醫學化驗,
01:59
and chess
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和下棋方面能力低下的人,
02:00
all tend to rate their expertise almost as favorably as actual experts do.
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都會認為自己堪比專家。
02:08
So who's most vulnerable to this delusion?
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那誰最容易有這種幻覺呢?
02:11
Sadly, all of us because we all have pockets of incompetence
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所有人。 因為人人都有自己不勝任
02:15
we don't recognize.
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而又沒有意識到的方面。
02:18
But why?
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為什麼呢?
02:19
When psychologists Dunning and Kruger first described the effect in 1999,
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當心理學家達寧和克魯格 在 1999 年提出達克效應時,
02:24
they argued that people lacking knowledge and skill in particular areas
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他們認為人們在缺少 知識和技術的領域
02:28
suffer a double curse.
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遭受一個雙重詛咒。
02:31
First, they make mistakes and reach poor decisions.
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第一,他們會有失誤和失策。
02:35
But second, those same knowledge gaps also prevent them from catching their errors.
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第二,知識中的差距 讓他們無法發覺自己的錯誤。
02:40
In other words, poor performers lack the very expertise needed
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也就是說, 表現越不佳的人就越不容易
02:44
to recognize how badly they're doing.
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意識到自己表現不佳。
02:47
For example, when the researchers studied
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比如,
一項針對大學辯論競賽者的研究發現,
02:49
participants in a college debate tournament,
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02:51
the bottom 25% of teams in preliminary rounds
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前幾輪的表現在倒數四分之一的群體
02:55
lost nearly four out of every five matches.
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在之後的四五輪裡還是屢戰屢敗。
02:59
But they thought they were winning almost 60%.
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但是他們以為自己的贏率接近六成,
03:03
WIthout a strong grasp of the rules of debate,
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由於對辯論規則缺乏深入理解,
03:06
the students simply couldn't recognize when or how often
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這些學生根本就沒有意識到
03:09
their arguments broke down.
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他們的論點什麼時候瓦解, 和瓦解的頻率。
03:12
The Dunning-Kruger effect isn't a question of ego blinding us to our weaknesses.
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達克效應不是弱點被自我蒙蔽的問題。
03:17
People usually do admit their deficits once they can spot them.
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人們經常能夠承認已經辨識到的弱點。
03:21
In one study, students who had initially done badly on a logic quiz
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一個研究顯示, 邏輯測驗做得不好的學生
03:25
and then took a mini course on logic
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在上了一個小型邏輯課程後,
03:28
were quite willing to label their original performances as awful.
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爽快地承認了自己原來的不足。
03:34
That may be why people with a moderate amount of experience or expertise
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這有可能是水平一般的人
03:38
often have less confidence in their abilities.
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通常信心不足的原因。
03:41
They know enough to know that there's a lot they don't know.
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他們有足夠的知識明白自己的不足。
03:44
Meanwhile, experts tend to be aware of just how knowledgeable they are.
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在另一方面, 專家們很清楚自己的水準,
03:49
But they often make a different mistake:
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但他們經常會犯另一種錯誤:
03:51
they assume that everyone else is knowledgeable, too.
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他們以為其他人也知道的很多。
03:56
The result is that people, whether they're inept or highly skilled,
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結果,水平不高的人 和專家們都把自己
04:00
are often caught in a bubble of inaccurate self-perception.
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圈在了不同的 錯誤自我認知的氣泡裡。
04:04
When they're unskilled, they can't see their own faults.
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水平不高的人看不到自己的不足。
04:07
When they're exceptionally competent,
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能力超高的人無法意識到
04:09
they don't perceive how unusual their abilities are.
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自己的能力如何罕見。
04:14
So if the Dunning-Kruger effect is invisible to those experiencing it,
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那麼在達克效應中,
04:18
what can you do to find out how good you actually are at various things?
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人們應該怎樣對自己有正確的評估呢?
04:24
First, ask for feedback from other people,
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第一,向其他人索要反饋,
04:27
and consider it, even if it's hard to hear.
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即使忠言逆耳。
04:30
Second, and more important, keep learning.
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第二,也是更重要的一點,不斷學習。
04:33
The more knowledgeable we become,
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越多的知識能讓我們
04:34
the less likely we are to have invisible holes in our competence.
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填補更多的不足。
04:40
Perhaps it all boils down to that old proverb:
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就如一個諺語所說,
04:43
When arguing with a fool,
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和一個蠢材吵架時,
04:44
first make sure the other person isn't doing the same thing.
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先要確保自己不也是個蠢材。
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