Thursday, November 16, 2017

Worldview Matters: Confirmation Bias

Why Does Worldview Matter? The Impact of Worldview I – Confirmation Bias


Have you ever wondered what the big deal is about ‘worldview’? Why care about what your worldview is, or someone else’s worldview is? What is the big deal about worldview studies, or worldview awareness? I hope to address the importance of worldview awareness and analysis in a series of posts, drawing on insights worked out more fully in our recently-released text, An Introduction to Christian Worldview (IVP Academic).

Worldview is the conceptual lens through which we see, understand, and interpret the world and our place within it. Worldview develops in and flows through the heart, the center of the human person, and necessarily involves answers (propositional or narrative) to four questions: What is our nature? What is our world? What is our problem? What is our end? Every person possesses a worldview that provides an answer or set of answers to these core worldview questions, but these individual worldviews can be compiled under broad categories.

The Impact of Worldview


I greatly enjoy mysteries and detective stories, from Sherlock Holmes to Hercule Poirot, Law & Order to NCIS. When cops or crown attorneys have a working thesis concerning a particular crime, their approach to evidence is affected by how that evidence relates to their governing thesis. For example, if they suspect someone of committing a particular crime, tiny bits of evidence will strengthen their position.


One of my favorite shows was Monk, starring Tony Shalhoub as the obsessive-compulsive, brilliant, and dysfunctional detective Adrian Monk. In one episode, “Monk and the Astronaut,” Monk investigates the murder (a staged suicide) of a former call girl who was about to publish a revealing autobiography. Monk quickly becomes convinced that the murderer is a prominent NASA astronaut and rising politician. During the investigation, Monk discovers that the woman’s autobiography had included a chapter relating how, many years earlier, the suspect had been arrested and jailed for beating the now-deceased woman during their tumultuous romantic entanglement. When Monk hears this, it supports his thesis that the astronaut is “the guy.” The revealing autobiography (now mysteriously erased from her computer) provides motive for the murder. The evidence is not airtight: there are no surviving manuscripts of the autobiography, no solid proof that the woman was going to “out” the suspect, no concrete evidence that the call girl was beaten by the suspect. But it doesn’t take a big piece of evidence to support or maintain Monk’s theory; he now has his suspect’s potential motive.

I am often asked why worldview matters: What does it impact? Why bother learning about it as a concept, and one’s own worldview specifically? What does it have to do with life? Simply put, worldview matters because one’s worldview affects everything that one thinks and does, through confirmation bias, experiential accommodation, the pool of live options, and life motivation. Today, I want to look at confirmation bias – I will return next week to look at other impacts that worldview exerts upon us.

Worldview and confirmation bias.

Worldview affects us through a phenomenon known as confirmation bias. “Confirmation bias refers to a type of selective thinking whereby one tends to notice and to look for what confirms one’s beliefs, and to ignore, not look for, or undervalue the relevance of what contradicts one’s beliefs.” (Robert Carroll) In other words, confirmation bias is the influence of worldview guiding a person to affirm what fits with his preexisting worldview. As the English philosopher Francis Bacon wrote, “It is the peculiar and perpetual error of the human understanding to be more moved and excited by affirmatives than by negatives.” We tend to see, dwell on, and be excited by what fits with our existing worldview beliefs. Confirmation bias is the first way in which worldview affects our approach to external data.

You can see confirmation bias at work in many different areas. For example, consider proponents of evolution. According to Darwin’s original theory, the fossil record should be filled with multitudes of intermediate species, transitional fossils that highlight the evolutionary process from one distinct species into another. While evolutionists acknowledge that the vast fossil evidence predicted by early Darwinists is simply not there, the theory persists. And every year or two, one hears the proclamation of a new fossil discovery of a possible “transitional species.” There are not many intermediates, certainly not as many as predicted, but proponents trumpet each new proposed discovery as proof of evolution’s truth.

Along the same lines, proponents of a worldview that claims we live in a random, purposeless universe, and that human life on earth arose strictly by chance, tend to believe that there is or ought to be life somewhere out there in the universe. If it is believed that there is life beyond the earth, then the discovery of lines that look like ancient river beds on the surface of Mars is quite exciting and serves as confirmation of that worldview. To others, it just looks like interesting lines that might indicate there used to be water on the surface of Mars—nothing earthshattering, and certainly not proof that life could have existed on the Red Planet.

Alternatively, Christians who believe in life after death, that this physical life is only the introduction to eternity, point to studies of near-death experiences as proof that there is at least a minimal existence and consciousness after death. Due to the influence of confirmation bias, it doesn’t take a significant amount of corroborating evidence to reinforce the existing worldview.

Confirmation bias also affects what evidence in particular is emphasized. For example, some Westerners point to Osama bin Laden, the 9/11 attacks, ISIS, and other terrorist activities perpetrated by Muslims to conclude that Islam is a hate-filled, inherently violent religion. Others
point to the Red Crescent and other Muslim charities to argue that Islam is a compassionate, inherently peaceful religion. The same evidence is seen by both parties, but each group emphasizes the data that fit with their preexisting perspective.

Confirmation bias exerts a powerful influence upon all of us, regardless of our underlying worldview. Being aware of one’s own (and others’) worldview, then, can help identify when and where one is being affected by confirmation bias. Am I embracing these data because the data are convincing or because they fit my worldview presuppositions? Am I valuing this set of data over that set of data for objectively compelling reasons or simply because this set confirms what I already think?

For more on confirmation bias, and all things worldview, check out:


Tawa J. Anderson, W. Michael Clark, and David K. Naugle, An Introduction to Christian Worldview: Pursuing God's Perspective in a Pluralistic World. IVP Academic, October 2017. 384 pp. Amazon link

No comments: