This dataset is associated with the following objects:
response_asq a data.frame containing raw response data of 751 participants and 41 variables.
prosettaid participant IDs.
EDANX01 -- MASQ11 response to items.
itemmap_asq a data.frame containing the item map, describing the items in each instrument.
item_order item numeric IDs. This column refers to the column item_order in anchor item attributes.
instrument the instrument ID that each item belongs to.
item_id item ID strings. This column refers to column names in raw response data, excluding the participant ID column.
item_name new item ID strings to be used in the combined scale.
ncat the number of response categories.
anchor_asq a data.frame containing anchor item parameters for 29 items.
item_order item numeric IDs.
item_id item ID strings. This column refers to column names in raw response data, excluding the participant ID column.
a the discrimination (slope) parameter for the graded response model.
cb1 - cb4 the boundaries between each category-pair for the graded response model.
data_asq a PROsetta_data object containing the datasets above. See loadData for creating PROsetta_data objects.
## load datasets into a PROsetta_data object
data_asq <- loadData(
response = response_asq,
itemmap = itemmap_asq,
anchor = anchor_asq
)
## run descriptive statistics
runDescriptive(data_asq)
## run item parameter calibration on the response data, linking to the anchor item parameters
runLinking(data_asq, method = "FIXEDPAR")