Volume 10, Issue 4 (November 2023)                   Avicenna J Neuro Psycho Physiology 2023, 10(4): 158-163 | Back to browse issues page


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Shahabian M, Athari Z, Jouzy P, Ebadirad S M, Akhtarmoghaddam S, Rajabzadeh S et al . Validity and Reliability Assessment of the Persian Version of the Dream Sharing Questionnaire. Avicenna J Neuro Psycho Physiology 2023; 10 (4) :158-163
URL: http://ajnpp.umsha.ac.ir/article-1-477-en.html
1- Emergency Medicine Specialist, Department of Research and Development. Donotedit Company, Thallinn, Estonia , elmpajooh.ac.ir@gmail.com
2- Ph. D. candidate of Counseling, Department of Counseling, Faculty of Psychology and Educational Sciences, University of Kharazmi, Tehran, Iran
3- Master of science counseling family, counseling Department, Faculty of Educational Sciences and Psychology, Ferdowsi University, Mashhad, Iran
4- Ph. D. in Counseling, Department of Counseling, Faculty of Psychology and Educational Sciences, University of Kharazmi, Tehran, Iran
5- Master's student in General Psychology, psychology Department, Faculty of Humanities, Islamic Azad University, Neyshabor branch, Neyshabor, Iran
6- Department of E-learning in Medical Science, Smart University of Medical Sciences, Tehran, Iran
7- Master of science General Psychology, Department of Psychology, Khorasan Institute of Higher Education, Mashhad, Iran
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Background
The intricate nature of sleep has captured the interest of scholars, who have only recently begun comprehending its complexities. Approximately 33% of one’s lifespan is allocated to sleeping, so the necessity of rest is apparent [1]. The rudimentary tenets of sleep are readily understandable, encompassing the physiological response following the onset of slumber and intricate mechanisms that regulate the onset and cessation of sleep [2].
The human body undergoes four distinct stages of sleep during the course of a night’s rest. The first three sleep phases are classified as non-rapid eye movement (NREM), and the ultimate stage is called rapid eye movement (REM) sleep. Each stage is associated with a different depth of sleep and specific patterns in brain waves and muscle activity in the body [3]. Our body cycles through all of the stages of sleep four to six times each night, going through one about once every 90 to 120 min. The progression of sleep cycles is subject to various factors, such as age, gender, and recent sleep behavior, which can influence the observed patterns [4].
It is purported that around 80% of dreams transpire during the REM phase of sleep, while the remaining 20% arise during the NREM phase [5]. Although most dreams take place during REM sleep, the purpose of REM sleep is not fully understood [6].
Frequently recurring dreams, which occur at 90-min intervals, can only be accessed if the dreamer recollects them upon awakening [7]. Dreaming is widely acknowledged to be a wholly subjective phenomenon [8]. The majority of our dream experiences occur in a colorized state as opposed to a monochromatic representation, and humans also utilize the full spectrum of sensory perception in dreams, encompassing the five senses. However, human beings typically rely on their visual faculties for perception, followed by auditory, tactile, and olfactory stimuli, with gustatory stimuli being the least used [9].
Dream sharing refers to the act of recording or exchanging discussions pertaining to both nocturnal and imaginative musings with other individuals. A fundamental objective of dream sharing is the interpretation of dreams. Despite the inherently personal nature of dreams, they are frequently disclosed to intimate partners, family members, acquaintances, and colleagues in a common social setting as a part of everyday social interaction, with the primary purpose of entertainment [10]. Actually, problems in sharing dreams sometimes occur as the potential dream sharer faces difficulty finding the proper context for the speech event, choice of audience, and discourse frame. Additionally, the social rules of dream sharing vary among cultures; in some regions, for instance, depending on their culture, they do not share good dreams [11].

Objectives
This study aimed to assess the validity and reliability of the Persian version of the Dream Sharing Questionnaire in Iran.

Materials and Methods
The study employed a convenience sampling technique to select participants, comprised of students attending governmental and nongovernmental universities located in Mashhad, Iran.
This study used two validity indices, including the content validity index (CVI) and the content validity
ratio (CVR).
The CVR examines the necessity of an item in the questionnaire, and the CVI considers the simplicity of an item, the relationship between the item and the entire questionnaire, and the clarity of the item [12,13]. In order to collect data related to these two indicators (CVI and CVR), a panel group is used, which usually has between 5-15 participants [14]. In this study, the panel group included 12 people.

The CVR value depends on the number of participants in the panel group. According to the number of participants in the panel group in this study (12 people), the minimum validity ratio is 0.56, which means that if the CVR score of an item is less than 0.56, the item should be removed [14]. If the optimal CVI level, regardless of the number of people in the panel group, is less than 0.70, the item will be removed, if it is between 0.70 and 0.79, the item will need modifications, and if it is higher than 0.79, it will be approved [15,16].
Cronbach quantified reliability by proposing a coefficient. The theoretical range of this coefficient is from 0 to 1 [16]. When the value of α is in close proximity to 0, the quantified responses are deemed to possess a considerably low degree of reliability. Conversely, when α approaches 1, the responses are regarded as highly reliable. A widely accepted practice in the field is to regard answers as reliable when α surpasses a threshold of 0.7 [17].
Sampling was conducted in two stages. In the first stage, 142 people were selected for the preliminary implementation of the questionnaire to calculate Cronbach’s alpha. In the second stage, 12 people were selected for the panel group to calculate the content validity of the questionnaire.

Results
The items of the questionnaire are shown in Table 1. As can be seen in the table, the items were divided into different dimensions, each of which was divided into several questions/items.

Table 1. Dimensions of the questionnaire and its items
Dimensions of the questionnaire Items/Questions
Remembering and sharing dreams How often do you remember your dreams?
How often do you share your dreams with others?
Dream details Dream of deceased people
Sexual content
Strange dreams
Recurrent dreams
Nightmare
Others
Regular sleep Regular sleep at night
Irregular sleep at night
Variable sleep time throughout the day
People with whom dreams are shared Spouse or lover
Parents
Siblings
Friends
Colleagues
Relatives
Table1 continue
The purpose of sharing dreams Dispelling the dream spell
Laughter, Excitement/Fun
Consolation/Reassurance/Empathy
Dream interpretation
Understanding the meaning of dreams
Increasing intimacy
Stress reduction/positive reaction
Feelings after waking up Happiness
Anxiety
Heartbeat
Sorrow
Anger
Jealousy
Others’ views toward sharing dreams In my family, sharing dreams is normal.
At my workplace, sharing dreams is common.
People around me welcome hearing about my dreams.
Attitude toward dreams Dreams are the separation of the soul from the body.
Dreams are special symbols for me.
Dreams are a tool for spiritual discovery.
Many dreams are meaningless.
Dreams have a message for me that must be interpreted.
Dreams are related to my unconscious and psychological complexes.
Dreams are influenced by the emotions that I have been dealing with during the day.
Dreams occur due to nerve stimulation and have no purpose or message.
Dreams are a way to connect to the divine world.
Creativity and problem-solving after sharing dreams Sharing dreams with others makes me understand the problem better.
When I tell others about my dreams, they get to know the newer aspects of the subject.
Telling lies about dreams To impress others, I may lie and say that I have had their dreams.
I may describe a false dream to sympathize with others.
I don’t consider telling false dreams a bad thing.
As delineated in Table 2, the computed CVR values for each item exceed 0.56, which signifies the vitality and essentiality of the items included in the scale. The total CVR score calculated for the 22 items shows the agreement of all panel members on the necessity of the respective items in the instrument. Furthermore, the attained CVI, which exceeds 0.79, denotes a satisfactory correlation between the items included in the questionnaire and its intended objective.
After correcting some options, CVI and CVR values were measured again, which are shown in the table below (Table 3).

Table 2. Calculation of the content validity index and content validity ratio
Dimensions of the questionnaire Items/Questions CVI CVR Result
Simplicity Communication Clarity
Remembering and sharing dreams How often do you remember your dreams? 1 1 1 0.83 Appropriate
How often do you share your dreams with others? 1 1 1 0.66 Appropriate
Dream details Dream of deceased people 1 1 1 1 Appropriate
Sexual content 1 1 1 1 Appropriate
Strange dreams 1 1 1 1 Appropriate
Recurrent dreams 0.91 1 0.83 0.83 Appropriate
Nightmare 1 1 0.91 1 Appropriate
Others 1 1 1 1 Appropriate
Regular sleep Regular sleep at night 1 1 1 1 Appropriate
Irregular sleep at night 1 1 1 1 Appropriate
Variable sleep time throughout the day 1 1 1 0.66 Appropriate
People with whom dreams are shared Spouse or lover 1 1 1 1 Appropriate
Parents 1 1 1 0.83 Appropriate
Siblings 1 1 1 0.83 Appropriate
Friends 1 1 1 1 Appropriate
Colleagues 1 1 1 0.66 Appropriate
Relatives 0.91 0.66 0.83 0.5 Rejected
The purpose of sharing dreams Dispelling the dream spell 1 1 1 1 Appropriate
Laughter/Excitement/Fun 1 1 1 1 Appropriate
Consolation/Reassurance/Empathy 1 1 1 0.83 Appropriate
Dream Interpretation 1 1 1 1 Appropriate
Understanding the meaning of dreams 1 1 1 1 Appropriate
Increasing intimacy 0.91 1 1 0.83 Appropriate
Stress reduction/positive reaction 0.91 0 0.83 0.66 Appropriate
Feelings after waking up Happiness 1 1 1 1 Appropriate
Anxiety 1 1 1 1 Appropriate
Heartbeat 1 1 1 1 Appropriate
Sorrow 1 1 1 0.83 Appropriate
Anger 1 1 1 0.66 Appropriate
Jealousy 0.91 0.66 0.83 0.5 Rejected
Table2 Continue
Others’ views toward sharing dreams In my family, sharing dreams is normal. 0.91 0.58 0.66 0.33 Rejected
At my workplace, sharing dreams is common. 0.91 0.58 0.66 0.16 Rejected
People around me welcome hearing about my dreams. 0.91 0.91 1 0.33 Rejected
Attitude toward dreams Dreams are the separation of the soul from the body. 1 1 1 0.83 Appropriate
Dreams are special symbols for me. 0.75 0.83 0.83 0.66 Appropriate
Dreams are a tool for spiritual discovery. 0.83 1 0.91 1 Appropriate
Many dreams are meaningless. 1 1 1 1 Appropriate
Dreams have a message for me that must be interpreted. 1 1 1 1 Appropriate
Dreams are related to my unconscious and psychological complexes. 1 1 1 0.83 Modification
Dreams are influenced by the emotions that I have been dealing with during the day. 0.83 1 0.75 0.66 Appropriate
Dreams occur due to nerve stimulation and have no purpose or message. 1 1 1 1 Appropriate
Dreams are a way to connect to the divine world. 1 1 1 0.83 modification
Creativity and problem-solving after sharing dreams Sharing dreams with others makes me understand the problem better. 0.75 0.58 0.83 0.33 Rejected
When I tell others about my dreams, they get to know the newer aspects of the subject. 0.83 0.58 0.83 0.5 Rejected
Telling lies about dreams I may describe a false dream to sympathize with others. 1 1 1 1 Appropriate
I don’t consider telling false dreams a bad thing. 1 1 1 1 Appropriate
To impress others, I may lie and say that I have had their dreams. 1 1 1 0.83 Appropriate

Table 3. Modification of items and recalculation of the content validity index and ratio
Phrase CVI CVR Result
Dreams are a way to communicate with the spiritual world. 0.91 1 0.91 1 Appropriate
Dreams are related to the unconscious, and we are unaware of that part of the mind. 0.91 1 1 0.83 Appropriate

Table 4. Calculation of Cronbach’s alpha
Dimensions of the questionnaire Items/Questions Cronbach’s alpha
Remembering and sharing dreams 1-2 0.846
Dream details 3-4-5-6-7-8 0.772
Regular sleep 9-10-11 0.888
People with whom dreams are shared 12-13-14-15-16 0.896
The purpose of sharing dreams 17-18-19-20-21-22-23 0.832
Feelings after waking up 2-25-26-27-28 0.810
Attitudes toward dreams 29-30-31-32-33-34-35-36-37 0.937
Telling lies about dreams 38-39-40 0.894
The whole questionnaire The whole questionnaire 0.917
As can be seen in Table 4, the items have a Cronbach’s alpha above 0.7, meaning that the questionnaire is acceptable.

Discussion
The present findings identified a number of factors associated with dream-sharing, including dream recall and sharing, dream details, regular sleep, people with whom dreams are shared, the purpose of sharing dreams, feelings after waking up, others’ views toward sharing dreams, attitude toward dreams, creativity and problem-solving after sharing dreams, and telling lies about dreams.
The present study represents a pioneering endeavor in Iran, as it aimed to assess the reliability and validity of the Persian version of the Dream Sharing questionnaire. The outcomes of the investigation revealed that the act of dream sharing is widely practiced, with approximately 45.5% of dreams being shared, and that personality traits are correlated with the frequency of dream sharing. In fact, participants described dreams to entertain, share, and elicit responses. Some investigations considered dream sharing a strategy [18]. In other words, dream sharing is a social interaction, the intended result of which is self-expression [10].
Sharing dreams is a social interaction, and dream narration is more than just reporting the content of a dream. Sharing dreams helps bring people closer together. On the other hand, individuals can share their dreams, or specific dreams, with people they know well or who they would like to know better only in a similar context.
As mentioned before, for an item to be valid, its CVI and CVR must have acceptable values. Some items (such as interpreting dreams for relatives, feelings of jealousy after waking up, the views of family, workplace, and relatives on sharing dreams, sharing dreams to solve problems, and when I tell others about my dreams, they get to know the newer aspects of the subject) were excluded from the study because the CVR and CVI values were not favorable. A strong positive correlation was observed between the frequency of dream recall and the frequency of dream sharing. As it was said, if the CVI value is between 0.7 and 0.79, the item must be corrected. In our study, two items (dreams are a way to connect to the divine world, and dreams are related to my unconscious and psychological complexes) got a lower score than 0.7, and thus they were modified (dreams are a way to communicate with the spiritual world, and dreams are related to the unconscious, and we are unaware of that part of the mind).
The lowest Cronbach’s alpha for reliability is 0.7 [19]. In this study, Cronbach’s alpha was above 0.75 for all items, representing the proper level of internal consistency of the questionnaire.

Conclusions
The current study aimed to assess the validity and reliability of the Persian Edition of the Dream Sharing Questionnaire. Based on the findings, it can be concluded that all the items and the entire questionnaire have good validity and reliability. Therefore, the authors can use this questionnaire as a reliable and valid tool.

Compliance with ethical guidelines
All ethical principles were considered in the present study. The participants were informed about the research participants and procedure. This research was registered with the code of ethics IRAJAUMS. REC. 1397.002. Informed consent was obtained from the participants, and they were assured of the confidentiality of their information.

Acknowledgments
The authors would like to express their sincere gratitude to the participants for their cooperation in conducting the present study.

AuthorsΚΌ contributions
This study was conducted with he collaboration of all authors. All authors read and approved the final manuscript.

Funding/Support
This research did not receive any specific grant from funding agencies in the public, commercial, or non-profit sectors.

Conflicts of Interest
The authors reported no conflict of interest.

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Article Type: Research Article | Subject: General
Received: 2024/01/22 | Accepted: 2024/05/13 | Published: 2024/05/13

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