Table 2. Informative priors used for the observation model parameters.

	Prior data		Posterior Beta distribution
Parameter	Successes	Trials	a	b
	20	51	21	32
	4	108	5	105
	53	168	54	116
	20	931	21	912
	1588	1689	1589	102

Description of the individual-level data (original successes and trials) and the resulting informative prior parameters.