According to the text, why might a researcher not be overly impressed in a content

analysis if the coding agreement between two coders was 90% or .90?

a. The coders could have been cheating and discussing their coding decisions with
each other instead of doing them independently.
b. The content to be coded might have been unusually easy to code.
c. Since the rule of thumb for coding agreement is .70 or 70%, a 90% agreement
only surpasses the threshold by a minimum amount.
d. If the coding only involved two categories, the coders would agree by chance
50% of the time—thus making 90% agreement less impressive than it sounds.
e. It would indicate that the content coded by the coders was virtually identical—
something that a good content analysis attempts to avoid.

d.