Description Usage Arguments Details Value References Examples
The General Self-Efficacy Scale is a 10-item psychometric scale that is designed to assess optimistic self-beliefs to cope with a variety of difficult demands in life. The scale has been originally developed in German by Matthias Jerusalem and Ralf Schwarzer in 1981. (http://userpage.fu-berlin.de/health/selfscal.htm)
1 | scoring_gses(data, items = 1:10, keep = TRUE, nvalid = 7, digits = NULL)
|
data |
a |
items |
A character vector with the GSES item names ordered from 1 to 10,
or a numeric vector indicating the column numbers of the GSES items in |
keep |
Logical, whether to keep the single items and whether to return variables containing the number of non-missing items on each scale for each respondent. The default is TRUE. |
nvalid |
A numeric value indicating the number of non-missing items required for score calculations. The default is 7. |
digits |
Integer of length one: value to round to. No rounding by default. |
Number of items:
10
Item range:
1 to 4
Reverse items:
none
Score range:
10 to 40
Cut-off-values:
none
Minimal clinically important difference:
none
Treatment of missing values:
"Our rule of thumb is to calculate a score as long as no more than
three items on the ten-item scale are missing." (FAQ Document)
The function returns 2 variables:
nvalid.gses:
Number of valid values (MAX=10)
score.gses:
GSES Score
Schwarzer, R. & Jerusalem, M. (Hrsg.) (1999). Skalen zur Erfassung von Lehrer- und Schuelermerkmalen. Dokumentation der psychometrischen Verfahren im Rahmen der Wissenschaftlichen Begleitung des Modellversuchs Selbstwirksame Schulen. Berlin: FU Berlin
Skala zur Allgemeinen Selbstwirksamkeitserwartung (SWE) (http://psymet03.sowi.uni-mainz.de/download/Lehre/SS2010/SPSSKurs/Termin_1/SWE_Beschreibung.pdf/)
FAQ (http://userpage.fu-berlin.de/health/faq_gse.pdf)
1 2 3 4 5 6 | ## Not run:
library(dplyr)
items.gses <- paste0("GSES_", seq(1, 10, 1))
scoring_gses(mydata, items = items.gses)
## End(Not run)
|
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