READ ME File For 'Threat Conditioning in Anxiety Disorders - Kane Steggles - Anonymised Thesis Dataset'

Dataset DOI: https://doi.org/10.5258/SOTON/D3674

ReadMe Author: Kane Steggles, University of Southampton ORCID ID: https://orcid.org/0009-0004-3577-3000

This dataset supports the thesis entitled 'Threat Conditioning in Anxiety-Related Disorders: An Empirical Study and Systematic Review'.
AWARDED BY: Univeristy of Southampton
DATE OF AWARD: 2025

DESCRIPTION OF THE DATA
This anonymised dataset contains data associated with a student sample taken from the University of Southampton. The participants completed the following 
self-report psychometric measures:
- Intolerance of Uncertainty Scale (IUS-12)
- Trait Anxiety Shortened (STAI-T)
- Generalised Anxiety Disorder Questionnaire (GAD-7)
- Patient Health Questionnaire (PHQ-9)
- Obsessive Compulsive Inventory - Revised (OCI-R)
- Panic Disorder Severity Scale (PDSS-SR)
- Social Interaction Phobia Scale (SIPS)
- Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5)

Additionally, participants partook in a two-day Pavlovian conditioning task which produced extra data:
- Skin Conductant Response data (measured in Microsiemens; µS)
- Anxiety ratings (Likert: 0 - 100)
- Expectancy ratings (Likert: 0 - 100)

How data was collected:
Participants were recruited via word-of-mouth and via the Psychology department's research participant management system: SONA. Using SONA, Psychology 
students partake in research that grants them credits used within their undergraduate degrees or they are financially compensated for their time. Date was
collected in a laboratory on Southampton University's Highfield campus. This study was granted ethical approval by the Psychology ethics sub-committee within
the University of Southampton Research Ethics Committee (UREC; Ethical Approval Number: 78272). Participants gave full informed consent and were debriefed 
post-experiment. All data was anonymised prior to analysis.

File format and software:
- File: multisess_rep_data_wide_Current.sav
- Format: SPSS datafile (.sav)
- Software required: IBM SPSS Statistics (or any software capable of reading .sav files)

Dataset variable summary:
- Subject ID
- iu, ta, gad, sips, pdss, oci, pcl, phq (Mean self-report questionnaire scores)
- iu_dm (de-meaned), ta_dm, gad_dm, sips_dm, pdss_dm, oci_dm, pcl_dm, phq_dm (Mean-centred questionnaire scores)
- gad_cut to phq_cut (binary categorisation of above or below clinical cut-off)
- Comorbidity categorical (comorbidity burden category: none, single, or multiple)
- Comorbidity dimensional (comorbidity burden: dimensional)
- Variables related to anxiety, expectancy, square-root transformed SCR, and Z-transformed SCR across the acquisition, extinction (early/late), and
extinction-retention (early/late) phases:
	- ACQ = Acquisition phase
	- EXT = Extinction phase
	- RET = Retention phase
	- E = Early block e.g., EXT_E_ (early block in extinction phase)
	- L = Late block e.g., EXT_L_ (late block in extinction phase)
	- CSplus = CS+ stimulus
	- CSminus = CS- stimulus
	- anx = Anxiety ratings (Likert: 0-100)
	- exp = Expectancy ratings (Likert: 0-100)
	- SCR_sqrt = Square-root transformed skin conductance responses (Microsiemens)
	- SCR_Z = Z-transformed skin conductance responses (Microsiemens)
	- overall = Mean score across all trials per phase
	- CSdiff = CS+-CS- difference score using all related trials per phase
	- MCSplus = Mean score across all CS+ trials per phase
	- MCSminus = Mean score across all CS- trials per phase
Producing 111 variables in total.

Date of data collection: 2023, 2024

Information about geographic location of data collection: United Kingdom

Licence:CC-BY

Related projects/Funders:
University of Southampton

Related publication:
Submitted to Behaviour Research and Therapy (BRAT)