Fig. 7 Students' activity graphs, identifying students' dropout after finding the response of the last question of the assignment (1 = max, 0 = min; randomly picked graphs).
We note that those are separate experiments not included in the assignment process, and it is an interesting question (regardless of the assignment approach) to propagate uncertainty from assignment to uncertainty in dynamics or interactions.
The discussion question component of the assignments was based on assigned readings from the course textbook (Simpson, 2010) and covered the terminology and concepts related to the skills of constructing and interpreting phylogenetic trees.
The majority of the questions in the assignment followed the sequential order of the sections (e.g., a question related to section 2 was followed by a question related to section 3).
However, many of the perhaps more important ecological questions require the assignment of the sequence fragments to the microbial lineage they originate from, a process called 'binning' [ 12, 22].
Such a result brings into question both the assignment of the MC sequence region as a cap-binding motif, and the specific participation of the two identified aromatic residues from Ago2 in forming base-stacking interactions with cap.
By exogenous variation in treatments we mean that the assignment to the treatment is not affected by any factor inside the analyzed system, that is, no important variable, from the perspective of the research question, influences the assignment.
This proposal therefore faces consistency questions about the assignments of definite values to observables according to different ways of splitting up the total system into components.
The lack of warning, the many casualties, the proletarian background of many of the victims, and ETA's quick disavowal of the crime all suggested that there was reason to question the assignment of blame.
However, anyone who has ever tried to put together a barbecue grill by flashlight on a buggy summer night will question the assignment of assembly-instructions writers to the top of the scribe hierarchy (284), while biographers and novelists (socioeconomically indistinguishable) must content themselves with a 285.
