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5 votes

What is the optimal contrast ratio for best readability?

Short answer Higher contrast increases readability. Background In a series of papers under the umbrella "Psychophysics of Reading" (link is to first paper in the series of five) the authors ...
AliceD's user avatar
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4 votes

What is the source for the W3C's Contrast Ratio formula?

The W3C link provided by Mark in a comment on "Understanding WCAG 2.0" provides the source for the contrast ratio formula under the "Notes on formula" section. The formula (L1/L2) ...
Steven Jeuris's user avatar
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3 votes

Why do many people play Candy Crush without ever buying anything while some spend all their money on it?

The economic concept of marginalism comes to mind. Actors will spend money to buy virtual goods if the marginal cost (price) is lower than the marginal (subjective) utility of the virtual good. If you ...
Marius Eidem's user avatar
3 votes

Is ignoring messages a learned behavior?

Several explanations could apply crossing psychology and linguistics: Cognitive: It is perhaps bold to suggest that there could be a perfectly constructed error message. Reading comprehension and ...
Tony Mobbs's user avatar
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2 votes

What is the source for the W3C's Contrast Ratio formula?

Short Answer The WCAG 2.x addition of 0.05 to the simple ratio calculation was intended to serve two purposes: 1) Prevent the ratio from calculating as infinite when one of the colors was black (zero)....
Myndex's user avatar
  • 121
2 votes
Accepted

Why do many people play Candy Crush without ever buying anything while some spend all their money on it?

Summary: From the few papers I've looked at, microtransaction-based games tend to work as suspected/designed. That is, games which rely on frustration to get the player to spend money (like Candy ...
got trolled too much this week's user avatar
1 vote

Why do many people play Candy Crush without ever buying anything while some spend all their money on it?

At least in part, the games include elements that make children more susceptible to buying in-app-purchases. Though this tactic may have been somewhat attenuated. In some other cases, I found the ...
Justas's user avatar
  • 1,537

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