Effect of Eye Movement Desensitization and Reprocessing Therapy 2.0 Online Group Protocol on Traumatic Experiences Based on Traffic Accident: A Randomized Controlled Trial
Phase: NA
Conditions: Post Traumatic Stress Disorder
Sponsor: Academy of Therapeutic Sciences, Turkey

 
 
 
EFFECT OF EMDR 2.0 ONLİNE GROUP PROTOCOL ON TRAUMATİC 
EXPERİENCES BASED ON TRAFFİC ACCİDENT: A RANDOMİZED CONTROLLED 
TRİAL 
 
 
 
 
10/17/2022 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Study Protocol and Statistical Analysis Plan 
To reach people who had been in car accidents, an announcement was posted on social media, the 
research was detailed, and volunteers were asked to give their contact information using Google 
Forms. The volunteers were interviewed and were thoroughly informed about the study, the inclusion 
requirements were assessed, and a Google Form information comprising data collecting tools will be 
delivered to the participants who fulfilled the inclusion criteria.  
The subjects will be randomly divided into groups and the EMDR 2.0 Group application and 
mhGAP will be applied to them online. Participants eligible for the applications were randomized to 
be 30 subjects (in three group ). In both groups, the application will bw made for three consecutive 
days. Those who will be unable to finish their applications at this stage will be ruled out of the study. 
Participants will be requested to complete out forms including data collection tools 1 week and 
1 month after completing the applications. Following appropriate processing, the obtained data will be 
subjected to statistical analysis. 
Statistical Analysis 
SPSS 22 package program will be used to perform statistical analyses on study data. Descriptive 
data will be presented with frequency and percentage for categorical variables and mean and standard 
deviation for continuous variables. The Pearson Chi-square test for categorical variables and 
parametric assumptions for continuous variables will be used to compare the pre-application variables 
of the two groups, followed by the Student’s T-test. The repeated measures analysis of variance will 
be used to see whether EMDR 2.0 Group Application and mhGAP procedures alone resulted in 
significant changes in the dependent variables and if there will be a difference in changes between the 
two groups. In cases where the Mauchly test revealed that the sphericity assumption will be been 
violated, the Greenhouse–Geisser adjustment will be used, and the corrected results will be reported. 
The effect size will be determined using η2. A value of p < 0.05 will be considered statistically 
significant. 
Data Collection Tools 
The Socio-Demographic Data Form 
The socio-demographic data form will be developed by the researchers in line with the literature 
and study objectives. Participant’s demographic data such as age, sex, educational level, and 
profession will be inquired. 
The Depression-Anxiety-Stress Scale-21 
The Depression-Anxiety-Stress Scale-21 (DASS-21) will be used in the study to determine the 
depression, anxiety, and stress symptoms of the participants. The scale has 21 items (Lovibond and 
Lovibond, 1995). Each question is evaluated on a four-point Likert-type scoring and it has seven items 
each for depression, anxiety, and stress. The score that can be obtained from the scale for each 
subdimension changes between 0 and 21. The Turkish validity and reliability study of the scale were 
conducted by Saricam (2018). 
The Impact of Event Scale 
The Impact of Event Scale (IES-R) will be applied to measure the amount of effect of persons from 
an event in the study. It was developed by Weis and Marmara in 1997 (Weiss, 2007). It is a self-report 
five-point Likert-type scale and includes 22 items. It evaluates the level of exposure to events in three 
different fields as “Intrusion,” “Avoidance,” and “Hyperarousal.” The score that can be obtained from 
the scale varies between 0 and 88. The Turkish validity and reliability studies of the scale were carried 
out (Çorapçıoğlu et al., 2006). 

Informed Consent 
The purpose of this study is to decrease traumatic, depressive, and stressful symptoms of the people who 
experienced traffic accident through EMDR 2.0. It will be approximately 30 minutes to complete necessary 
questionnaires. The involvement of study is voluntarily basis, and you can be dismissed in any time of the study 
without losing any right.  
After you sign this form, there will be relevant questions. The purpose of these questions to make comparison 
by a blind researcher in 1-week and 1-month follow up. All of the documents and information will be kept 
private, and there will be no publishing of this private information to the public. In case of publishing of the 
study findings, your identity will be kept private.  
I read all of the information in the informed consent and accept to involve.  
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 1. Flowchart of the study 
Assessed for eligibility  
(n= 77) 
Excluded (n=17) 
   Not meeting inclusion criteria (n=7) 
   Declined to participate (n=6) 
   Other reasons (n=4) 
Follow-up measures  
Impact of Event Scale-Revised 
Depression anxiety stress scale-21 
1-week post-measures  
Impact of Event Scale-Revised 
Depression anxiety stress scale-21 
 
 
Allocated to intervention  
 
 1-week post-measures  
Impact of Event Scale-Revised 
Depression anxiety stress scale-21 
 
 
Allocated to intervention  
 
Follow-up measures  
Impact of Event Scale-Revised 
Depression anxiety stress scale-21 
Allocation 
Analysis 
Intervention 
One-week 
Randomized (n= 60) 
Enrollment 
EMDR 2.0 Group 
mhGAP 
The scales applied; 
Sociodemographic form 
Impact of Event Scale-Revised 
Depression anxiety stress scale-21 
Follow-up 
One-month