We present high S/N spectra of the H \beta region in 17 intermediate redshift ( 0.85 \leq z \leq 2.5 ) quasars .
The spectra represent first results of our campaign to test the redshift/luminosity robustness of the so-called Eigenvector 1 ( E1 ) parameter space as developed for low redshift AGN in Sulentic et al .
( [ ] ) .
The new quasars span the luminosity range -26 \geq M _ { B } \geq - 29 while most of our low redshift sample ( n=215 ) involve sources in the range -19 \geq M _ { B } \geq - 26 .
The high redshift sources show E1 parameter values and domain occupation that are similar to our low redshift sample supporting earlier findings that E1 parameters are uncorrelated with source luminosity .
Elementary accretion theory can account for a systematic increase of the minimum observed H \beta 
profile width with source luminosity .
Narrow line Seyfert 1 sources with M _ { B } = -28 show FWHM ( H \beta ) as much as 2000 km s ^ { -1 } broader than those with M _ { B } = -22 .
A possible change in the higher redshift/luminosity sources involves systematically weaker [ OIII ] \lambda \lambda 4959,5007 narrow line emission .