You May Have Noted That the X‐axis of the Plot

Multiple Choice

You may have noted that the x‐axis of the plot uses a logarithmic scale (the distance from 1-2 is the same as that from 2-4 and from 4-8) .This is:

A) To ensure the correct visual balance between RRs that are positive (>1.0) and those that reflect an inverse association (<1.0)
B) A mistake - linear (arithmetic) scales are easier to work with and interpret
C) Irrelevant, since the range of RRs is quite small
D) To allow a very wide range of effect sizes to be included on the one plot