Are incorrect trials deleted?

No. They remain in accuracy; only correct trials enter median timing.

Is the difference diagnostic?

No. It is a page-defined descriptive difference.

Can reverse mode use the same interpretation?

No. The active response rule is different.

Condition explainer

How the Stroop Task Works on This Site

The color-word mode varies whether a written color word agrees with, conflicts with, or is absent from the ink-color response. Results keep accuracy and median timing separate by condition.

Congruent, Incongruent, and Neutral

Congruent trials show a word and ink that name the same color. Incongruent trials show different word and ink colors. Neutral trials show a non-color string in one response color. The generator balances these condition labels across a timed block.

Accuracy is calculated within each condition. Median correct response time excludes incorrect trials from the timing summary while leaving those errors visible in accuracy.

The Interference Formula Used Here

The displayed difference is median correct incongruent response time minus median correct congruent response time. It is available only when both conditions contain a correct response. A positive or negative value is descriptive for this block and has no diagnostic cutoff.

Trial Count, Errors, and Device Context

Short blocks can have few correct observations in one condition. Keyboard, mouse, and touch have different response paths, while display refresh and browser scheduling affect small timing differences. Review condition counts before emphasizing the subtraction.

Not a Clinical or Daily-State Conclusion

This implementation has no professional administration, norms, or validated interpretation. A slower block cannot identify fatigue, stress, health, or a specific brain function.