Table I. Process of calculating mean...

Table I.

Process of calculating mean effect size

	Original statistical estimates from previous RFID literature	1st stage	2nd stage	3rd stage	4th stage
Expression	t-value	r_1j[⁷]	z_1j		R_j[⁸]
	F-value	r_2j	z_2j	z_1j+z_2j+⋯+z_kj/k
	Odds ratio	r_3j	z_3j
	r[⁶]	⋮	⋮
		r_kj	z_kj
Instruction	Collect original statistical estimates such as t-value, F-value, odds ratio and correlation (r)[⁹]	Convert original statistical estimates to correlation	Convert correlation estimates to Fisher’s Z score (effect size)	Calculate mean of Fisher’s Z score[¹⁰]	Convert mean-effect size to correlation again

	Original statistical estimates from previous RFID literature	1st stage	2nd stage	3rd stage	4th stage
Expression	t-value	r_1j[7]	z_1j		R_j[8]
	F-value	r_2j	z_2j	z_1j+z_2j+⋯+z_kj/k
	Odds ratio	r_3j	z_3j
	r[6]	⋮	⋮
		r_kj	z_kj
Instruction	Collect original statistical estimates such as t-value, F-value, odds ratio and correlation (r)[9]	Convert original statistical estimates to correlation	Convert correlation estimates to Fisher’s Z score (effect size)	Calculate mean of Fisher’s Z score[10]	Convert mean-effect size to correlation again