d SJ7-3 st0129. Estimating parameters of dichotomous and... d Estimating parameters of dichotomous and ordinal item d response models using gllamm d by Xiaohui Zheng, Graduate School of Education d University of California, Berkeley d Sophia Rabe-Hesketh, Graduate School of Education d University of California, Berkeley d Support: zhengx@@berkeley.edu d ^gllamm^ must be installed; use ^ssc install gllamm^ d After installation, type help ^gllamm^ and ^gllapred^ f st0129/charity.do f st0129/charity.dta f st0129/spelling.do f st0129/spelling.dta