A classical test on subject's counting estimation skills.
Arguments
- data
Raw data of class
data.frame.- .by
The column name(s) in
dataused to be grouped by. If set toNULL(default), all data will be treated as from one subject and there will be no grouping columns in the value returned.- .input, .extra
Each is a
list()containing all the input variable names and special values for certain variables. See more in the details section.
Value
An object with the same class as data contains following values:
- pc
Percentage of correct responses.
- mrt
Mean reaction time.
- w
Weber fraction.
See also
symncmp() for symbolic number comparison.