Improving Comprehension of Consent Forms in Online Research: An Empirical Test of Four Interventions.

We predicted that short consent forms would produce greater instruction-following behavior than long consent forms, and although the pattern was consistent with this prediction (45% correct in the short form condition, 30% in the long form condition), the effect failed to achieve significance, b = .71, SE = .43, t = 1.64, p = .10, 95% CI [−1.55, 0.14].

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