In field settings I want a two-minute, phone-friendly task that taps our evolved vigilance to dominance cues — something more informative than a checklist but lighter than a full dot-probe. Has anyone used an emotional Stroop or go/no-go with angry faces on iOS and gotten stable signal within about 100 trials?
I’ve had good signal with a high go-rate affective go/no-go on iOS — neutral = go (about 80%), angry = no-go — about 96 trials with 400–900 ms jitter, then use “angry FA rate” plus median go RT as your bias; just trim <200 ms/>1500 ms and preload images to avoid frame hitches. Small caveat: if dominance is the target, consider a fearful-face block as a control to check specificity — would that still fit your two-minute window?