dataset_dep {PROsetta}

DEP dataset

Description

This dataset is associated with the following objects:

Details

• response_dep a data.frame containing raw response data of 747 participants and 49 variables.

  • prosettaid participant IDs.

  • EDDEP04 -- CESD20 response to items.

• itemmap_dep 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 parameters.

  • 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_dep a data.frame containing anchor item parameters for 28 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_dep a PROsetta_data object containing the datasets above. See loadData for creating PROsetta_data objects.

Examples

## load datasets into a PROsetta_data object
data_dep <- loadData(
  response = response_dep,
  itemmap  = itemmap_dep,
  anchor   = anchor_dep
)

## run descriptive statistics
runDescriptive(data_dep)

## run item parameter calibration on the response data, linking to the anchor item parameters
runLinking(data_dep, method = "FIXEDPAR")