Calculate mean scores on circumplex scales from item responses by using a set of scoring instructions, which may be loaded from the package or created as a custom data frame.
score(.data, items, instrument, na.rm = TRUE, prefix = "", suffix = "")
A data frame that matches .data
except that new variables are
appended that contain mean scores on each variable included in key
.
Required. A data frame containing at least circumplex scales.
Required. The variable names or column numbers for the
variables in .data
that contain all the circumplex items from a
single circumplex measure, in ascending order from item 1 to item N.
Required. An instrument object from the package. To see
the available circumplex instruments, use instruments()
.
Optional. A logical that determines if missing values should be omitted from the calculation of scores (default = TRUE). When set to TRUE, scales with missing data are essentially calculated with mean imputation.
Optional. A string to include at the beginning of the newly
calculated scale variables' names, before Abbrev
from key
and suffix
(default = "").
Optional. A string to include at the end of the newly
calculated scale variables' names, after Abbrev
from key
and prefix
(default = "").
Other tidying functions:
ipsatize()
,
standardize()
data("raw_iipsc")
instrument("iipsc")
score(raw_iipsc, IIP01:IIP32, iipsc)
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