Item Response Warehouse / Tables / reinwarth_2023_phq4reinwarth_2023_phq4
9,824 responses from 2,464 respondents to 4 items.
About this table
Description PHQ-4 (ultra-brief PHQ-2+GAD-2, 4 items, 1-4), representative German population sample, N=2464. Reference Reinwarth AC, Ernst M, Krakau L, Brahler E, Beutel ME (2023). Screening for loneliness in representative population samples: Validation of a single-item measure. PLOS ONE 18(2):e0279701. DOI 10.1371/journal.pone.0279701 Licence CC BY 4.0 Source data https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0279701
Size and shape
Responses 9,824 Respondents 2,464 Items 4 Response categories 4 Responses per respondent 3.987 Responses per item 2,456 Density 0.997 Longitudinal FALSE
Classification
age range Mixed child age (for child-focused studies) Adolescent (12-18y) measurement tool Survey/questionnaire item format Likert Scale/selected response primary language(s) ger
Item text
This table has item text in the IRW: the wording administered to respondents, not just the response codes.
Instrument Patient Health Questionnaire-4 (PHQ-4): PHQ-2 depression module (items q17_1, q17_2) and GAD-2 anxiety module (items q17_3, q17_4) Mean words per item 6.500 Mean characters per item 39 Mean characters per response 20.250 Flesch-Kincaid grade level 6.007
Columns
cov_age cov_education cov_gender cov_marital_status id item resp
Get the data
Or load it directly in R or Python:
# R
install.packages("remotes")
remotes::install_github("itemresponsewarehouse/Rpkg")
library(irw)
df <- irw_fetch("reinwarth_2023_phq4")
# Python
pip install irw
import irw
df = irw.fetch("reinwarth_2023_phq4")
Version and provenance
IRW version v393 Redivis dataset item_response_warehouse_3 v7.0 Redivis dataset DOI 10.57761/pqqn-pm43 Manifest pin for this IRW version v7.0 Metadata source irw_meta v23.0
Part of the Item Response Warehouse , IRW v393. This page describes the table as released in item_response_warehouse_3 v7.0.