Learning Data
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These data are taken from TenHave and Uttal (1994) JRSS-C.

Each child attempts to find an object in a maze after being presented 
with a map showing the location of the object.  Half the children are
shown the map correctly oriented while the other half are shown the
map upside-down (rotated).  Each child is given 3 attempts to find the object 
and the response (1,2,3) indicates the attempt at which the child was finally 
successful while (4) indicates failure for all 4 attempts.

The data are given as 1 row per subject with the first column indicating
whether the maps were rotated (0=rotated, 1=non-rotated) and the remaining 
columns represent repititions of the trial (and are given in order).