Table 3.

Means and 95 % CI for the manipulation check, by condition, in the analytic sample (n 901) of Amazon Mechanical Turk workers aged >18 years, USA, February 2018

		Contradictory	Convergent condition 1 (low-carbohydrate)	Convergent condition 2 (low-fat)	Control condition 1 (non-nutrition)
Total sample	Mean	3·77	2·42	2·65	2·55
(n 1001)	95 % CI	3·66, 3·88	2·29, 2·55	2·51, 2·79	2·45, 2·65
≤10 s   (n 96)	Mean	2·91	2·99	3·26	2·76
	95 % CI	2·60, 3·21	2·65, 3·33	2·85, 3·68	2·49, 3·04
Total sample without ≤10 s   (n 901)	Mean	3·86	2·32	2·58	2·52
	95 % CI	3·75, 3·98	2·19, 2·46	2·43, 2·72	2·41, 2·63

The manipulation check was measured on a scale of 1–5. ‘≤10 s’ includes any participant who spent 10 s or less on one or both of the stimulus materials. ‘Total sample without ≤10 s’ excludes any participants who spent 10 s or less on any of the stimulus materials from the original total sample.