quantitative research critique

critique the following from sucrose decreases infant biobehavioral pain response to immunizations: a randomized controlled trial
also referencing from polit and beck "evaluating quantitative research reports"
on the title- author statement and include population and major variables
#2 on the population and sample €“ population named (target and accessible) and described by author
specific sampling method named and described in detail
sample is represenative of the population
subject dropout if discussed
protection of subject rights