8,722 responses from 623 respondents to 14 items.
One of 4 tables from the same source; this one is the speaking_selfefficacy table. The others are listed under Related tables.
| Description | Speaking Self-Efficacy Scale (Wang & Sun; linguistic/self-regulatory/delivery/performance dimensions), Chinese EFL students, N=623 |
|---|---|
| Reference | Liu Z, Sun D, Zhang L, Wang X, Yang Y (2025) The impact of classroom interaction on willingness to communicate: The mediating roles of speaking self-efficacy and foreign language enjoyment. PLoS One 20(7): e0328226. https://doi.org/10.1371/journal.pone.0328226 |
| DOI | 10.1371/journal.pone.0328226 |
| Licence | CC BY 4.0 |
| Source data | https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0328226 |
| Responses | 8,722 |
|---|---|
| Respondents | 623 |
| Items | 14 |
| Response categories | 5 |
| Responses per respondent | 14 |
| Responses per item | 623 |
| Density | 1 |
| Longitudinal | FALSE |
| sample | Educational |
|---|---|
| measurement tool | Survey/questionnaire |
| item format | Likert Scale/selected response |
| primary language(s) | chi |
This table has item text in the IRW: the wording administered to respondents, not just the response codes.
| Instrument | Speaking Self-Efficacy Scale (Wang & Sun), 14 items covering four dimensions: linguistic (items 1-5), self-regulatory (6-8), delivery (9-10), performance (11-14) |
|---|---|
| Mean words per item | 1 |
| Mean characters per item | 2 |
| Mean characters per response | 7.400 |
| Flesch-Kincaid grade level | -3.400 |
This codebook is reconstructed by the IRW from the IRW data standard and the script that built it, liu_2025_classroom_wtc.py. 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). | Number |
item | IRW standard Item identifier. | made in the build script |
resp | IRW standard Response value. | made in the build script |
| Respondent covariates | ||
cov_academic_discipline | Covariate | Academic Disciplines |
cov_gender | Covariate | Gender |
cov_grade | Covariate | Grade |
What item codes and covariate values stand for is in the source’s questionnaire, S1_Appendix.docx, which shows the item wording.
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("liu_2025_speaking_selfefficacy")
# Python
pip install irw
import irw
df = irw.fetch("liu_2025_speaking_selfefficacy")
@article{Liu_2025, title={The impact of classroom interaction on willingness to communicate: The mediating roles of speaking self-efficacy and foreign language enjoyment}, volume={20}, ISSN={1932-6203}, url={http://dx.doi.org/10.1371/journal.pone.0328226}, DOI={10.1371/journal.pone.0328226}, number={7}, journal={PLOS One}, publisher={Public Library of Science (PLoS)}, author={Liu, Zhiyu and Sun, Dawei and Zhang, Lei and Wang, Xianzhi and Yang, Yanchao}, editor={Xue, Sijia}, year={2025}, month=July, pages={e0328226} }
| IRW version | v569 |
|---|---|
| Redivis dataset | item_response_warehouse_3 v14.0 |
| Redivis dataset DOI | 10.57761/rkkt-p907 |
| Manifest pin for this IRW version | v13.0 |
| Metadata source | irw_meta v43.0 |