.76 / .168
The bias figure means
that 76% picked the suspect, in relation
to 16.83% expected by chance (1/6). If
the suspect does not stand out then people who
know only the verbal description should
not be able to pick him out at better
than chance rates.
The size figure means that the lineup
effectively contains only 1.67 people:
the suspect plus 2/3 of an alternative!
There are supposed to be at least 5 "fillers" in this photo lineup and all of them
should be appropriate alternatives to the
suspect. However, there is no other
member who is a fully appropriate
alternative to the suspect. The risk of false identification for an innocent suspect is nearly 100%. The fillers in this lineup fail in their role as a safeguard against false identification. Not hard to understand - only one has anything approaching "small, squinted eyes".
The investigators in this case chose to
use a photo of the suspect in which he
blinked for the camera. The investigator
actually had other photos he could have
used. For example, look at this lineup.
Remember, the witness's description was
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