Two randomized tables were used depending on the source of the referral pediatric gastroenterologist or general pediatrician and further stratified by age, grouped age 5 < 12 and = 12 to 18. Random assignment was made in groups of four by drawing tokens out of a hat by the biostatistics core group assisting with this study.
After enrolment, patients were assigned to the intervention or control group following a previously generated random sequence held by an investigator not involved in the study enrolment, who indicated in sealed, opaque numbered envelops the group of assignment.
In Burton 2005a separate randomisation sequences were generated for each surgeon using random number tables and blocked in groups of four, and assignments were kept in sequential sealed envelopes, leading to a low risk of allocation bias.
After assignment to Group 1 and Group 2, patients were randomized by computer using a block randomization (six patients per block) to RUL 5, RUL 2.5, and bifrontal (BF) ECT in Group 1, and to RUL 5, and RUL 2.5 in Group 2. Assignment was concealed until administration of the first ECT treatment.
This arrangement cannot be ascertained from the level of the SN, which degrades its utility as an abstraction network because the organization of collections of concepts into groups that share the same ST assignment results in groups of semantically inconsistent concepts.
Group assessment Students complete in-class tests or quizzes in groups or complete out-of-class assignments in groups with the goal of creating a formal product.
Authors should provide sufficient information that the reader can assess the methods used to generate the random allocation sequence and the likelihood of bias in group assignment.
This process eliminates experimenter bias in group assignment.
Why? Classes are small, instructors insist on participation, students work in groups, and assignments include lots of written work and frequent quizzes, allowing for repeated midcourse corrections.
