The random regression model used in the study was permanent environmental variance to total
phonotypic variance.
Genetic and
phonotypic correlations between TWLB/EL and TWLW/EL were estimated 0.53 and 0.09, respectively.
Ellis's early work in philology resulted in a seminal book on English pronunciation, and the development of the English
Phonotypic Alphabet, with Isaac Pitman.
This may be evidence for the existence of differences in the physiological system and may equally reflect a
phonotypic response to local conditions (Zaouali 1975).
Phonotypic abundance showed that spring trait is controlled by dominated allele and semi-spring is controlled by recessive allele.