1- Department of Clinical Psychology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran. , snasiry@sbmu.ac.ir
2- Department of Psychology, Faculty of Social Sciences, Imam Khomeini International University, Qazvin, Iran.
3- Department of Clinical Psychology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abstract: (3422 Views)
Objective: After the COVID-19 outbreak, corona anxiety has become prevalent all over the world. To understand and treat this type of anxiety, researchers have examined its relationship with attentional bias, a phenomenon closely associated with other types of anxiety. The dot-probe task is a common instrument used for the evaluation of attentional bias. However, the psychometric properties of this instrument, when used for the assessment of attentional bias towards corona-related stimuli, are unknown. This study aimed to evaluate the psychometric properties of the COVID-19 dot-probe task to see whether its application in COVID-19 studies is justified.
Methods: A total of 362 Iranian adults completed the COVID-19 dot-probe task and Corona Anxiety Disease Scale (CADS), 146 of whom repeated this procedure after two weeks to provide test-retest data. Split-half reliability, the Cronbach α, intraclass correlation coefficient of test-retest scores, and associations between COVID-19 dot-probe task and CADS were calculated using SPSS v. 26.
Results: The study results indicated that the standard version of the COVID-19 dot-probe task lacks internal consistency, test-retest reliability, and criterion validity, whereas the response-based version of the instrument promotes all of these psychometric properties to an acceptable level.
Conclusion: COVID-19 dot-probe task is a psychometrically sound instrument for evaluating corona-related attentional bias and investigating its role in the mechanism of corona anxiety, only if the response-based method of computation is used for calculating the measures of attentional bias.
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● The standard version of the dot-probe task lacks acceptable psychometric properties.
● The response-based version of the task compensates these shortcomings and improves its psychometric properties.
● The response-based dot-probe task can be used to measure corona-related attentional bias.
Plain Language Summary
With the worldwide outbreak of coronavirus, people have increasingly become anxious about the threats of this pandemic. Since individuals who suffer from anxiety tend to pay more attention towards threatful stimuli (a phenomenon which is called attentional bias), researchers in Psychology have begun to investigate the relationship between corona anxiety and attentional bias. To do this, they use a common method of measuring attentional bias, which is called the dot-probe task. Using this tool, they show threatful and neutral pictures to the participants and see how their cognitive reactions is affected. However, the validity and reliability of this method for measuring attentional bias related to coronavirus have not been investigated. The study objective was to evaluate this validity and reliability. The results showed that the standard version of the COVID-19 dot-probe task lacks the acceptable levels of psychometric properties. In contrast, the response-based version of the instrument increases all of these psychometric properties to an acceptable level. Thus, the COVID-19 dot-probe task is a valid and reliable instrument for measuring corona-related attentional bias if the response-based method of computation is used for calculating the measures of attentional bias.
Type of Study:
Research |
Subject:
Psychometric Received: 2021/04/13 | Accepted: 2021/08/16 | Published: 2021/07/19