Span (spatial or verbal)

There is a bunch of tests measuring working memory span or attention span.

Usage

span(data, .by = NULL, .input = NULL, .extra = NULL)

Arguments

data

Raw data of class data.frame.

.by

The column name(s) in data used to be grouped by. If set to NULL (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:

nc

Count of correct responses.

max_span

Maximal span.

mean_span_pcu

Mean span using partial credit unit score.

mean_span_anu

Mean span using all-or-nothing unit score.