14,334 responses from 2,062 respondents to 7 items.
One of 6 tables from the same source; this one measures Daily Sessions, Frequency, Age of Onset, and Quantity of Cannabis Use Inventory (DFAQ-CU). The others are listed under Related tables.
| Description | DFAQ-CU frequency-format items, 7 items (last use, current and prior frequency, days in past week, days in past month, lifetime uses, hours after waking), ordinal categories 0-12 per item; days in past month a 0-31 count; N = 2,062 cannabis users (all 2,062 completed the DFAQ-CU and CUDIT-R; a 645-person subsample the other measures); cov_age, cov_sex, cov_ethnicity, cov_ppi_deviant. |
|---|---|
| Reference | Cuttler, C., & Spradlin, A. (2017). Measuring cannabis consumption: Psychometric properties of the Daily Sessions, Frequency, Age of Onset, and Quantity of Cannabis Use Inventory (DFAQ-CU). PLOS ONE, 12(5), e0178194. https://doi.org/10.1371/journal.pone.0178194 |
| DOI | 10.1371/journal.pone.0178194 |
| Licence | CC BY 4.0 |
| Source data | https://doi.org/10.6084/m9.figshare.5045962 |
| Responses | 14,334 |
|---|---|
| Respondents | 2,062 |
| Items | 7 |
| Response categories | 32 |
| Responses per respondent | 6.952 |
| Responses per item | 2047.714 |
| Density | 0.993 |
| Longitudinal | FALSE |
| age range | Adult (18+) |
|---|---|
| sample | Targeted/specific |
| construct type | Behavioral |
| measurement tool | Survey/questionnaire |
| item format | Mixed |
| primary language(s) | eng |
| construct name | Daily Sessions, Frequency, Age of Onset, and Quantity of Cannabis Use Inventory (DFAQ-CU) |
This table has item text in the IRW: the wording administered to respondents, not just the response codes.
| Instrument | Daily Sessions, Frequency, Age of Onset, and Quantity of Cannabis Use Inventory (DFAQ-CU), frequency items |
|---|---|
| Mean words per item | 12.867 |
| Mean characters per item | 73.878 |
| Mean characters per response | 13.551 |
| Flesch-Kincaid grade level | 8.284 |
This codebook is reconstructed by the IRW from the IRW data standard. It is our best reading, not the source’s own codebook, and it may contain mistakes. Where the two disagree, the source data are the authority. If you find an error, please tell us.
| Column | What it is | Source column |
|---|---|---|
| IRW standard columns | ||
id | IRW standard Identifier for the focal unit being measured — typically a person, but sometimes another entity (e.g., a word in a lexical task). | not traced |
item | IRW standard Item identifier. | not traced |
resp | IRW standard Response value. | not traced |
| Respondent covariates | ||
cov_age | Covariate | not traced |
cov_ethnicity | Covariate | not traced |
cov_ppi_deviant | Covariate | not traced |
cov_sex | Covariate | not traced |
What item codes and covariate values stand for is in the source’s codebook, 8541142.
Or load it directly in R or Python (both need a free Redivis account; the first call opens a browser to sign in):
# R
install.packages("remotes")
remotes::install_github("itemresponsewarehouse/Rpkg")
library(irw)
df <- irw_fetch("cuttler_2017_dfaqcu_freq")
# Python
pip install irw
import irw
df = irw.fetch("cuttler_2017_dfaqcu_freq")
@article{Cuttler_2017, title={Measuring cannabis consumption: Psychometric properties of the Daily Sessions, Frequency, Age of Onset, and Quantity of Cannabis Use Inventory (DFAQ-CU)}, volume={12}, ISSN={1932-6203}, url={http://dx.doi.org/10.1371/journal.pone.0178194}, DOI={10.1371/journal.pone.0178194}, number={5}, journal={PLOS ONE}, publisher={Public Library of Science (PLoS)}, author={Cuttler, Carrie and Spradlin, Alexander}, editor={Ito, Etsuro}, year={2017}, month=May, pages={e0178194} }
| IRW version | v584 |
|---|---|
| Redivis dataset | item_response_warehouse_5 v8.5 |
| Redivis dataset DOI | 10.57761/41xy-5k56 |
| Manifest pin for this IRW version | v8.5 |
| Metadata source | irw_meta v44.0 |