Study	Number of individuals	Number of judgments	Judgment achievement	Retest- Reliabilit¹	Retest- Reliabilit²
Athanasou & Cooksey [15]	1	100	0.32	0.995	0.85
	2	100	0.563	0.346	0.85
	3	100	0.005	0.974	0.85
	4	100	0.294	0.377	0.85
	5	100	0.474	0.023	0.85
	6	100	0.435	10.00	0.85
	7	100	0.404	0.861	0.85
	8	100	0.317	0.266	0.85
	9	100	0.554	0.550	0.85
	10	100	0.290	0.807	0.85
	11	100	0.238	0.634	0.85
	12	100	0.356	0.194	0.85
	13	100	0.028	0.227	0.85
	14	100	0.185	0.322	0.85
	15	100	0.232	0.723	0.85
	16	100	0.223	0.704	0.85
	17	100	0.219	0.856	0.85
	18	100	0.377	0.913	0.85
Levi [17]	1	280	0.521	0.856	0.99
	2	280	0.503	0.903	0.99
	3	280	0.510	0.929	0.99
	4	280	0.459	0.852	0.99
	5	280	0.483	0.918	0.99
	6	280	0.458	0.92	0.99
	7	280	0.429	0.934	0.99
	8	280	0.383	0.732	0.99
	9	280	0.459	0.854	0.99