The Dreamland: Validation of a Structured Dream Diary

Validated instruments for the analysis of dream contents are still scarce. Therefore, the aim of this study was to validate the Dreamland Questionnaire (DL-Q) by comparing its results to those of the Hall and van de Castle Coding System (HVDC). Twenty-two participants voluntarily filled in a written...

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Main Authors: Brigitte Holzinger, Lucille Mayer, Isabel Barros, Franziska Nierwetberg, Gerhard Klösch
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-10-01
Series:Frontiers in Psychology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fpsyg.2020.585702/full
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author Brigitte Holzinger
Lucille Mayer
Isabel Barros
Franziska Nierwetberg
Gerhard Klösch
author_facet Brigitte Holzinger
Lucille Mayer
Isabel Barros
Franziska Nierwetberg
Gerhard Klösch
author_sort Brigitte Holzinger
collection DOAJ
description Validated instruments for the analysis of dream contents are still scarce. Therefore, the aim of this study was to validate the Dreamland Questionnaire (DL-Q) by comparing its results to those of the Hall and van de Castle Coding System (HVDC). Twenty-two participants voluntarily filled in a written dream report as well as our DL-Q questionnaire, in total 30 dreams were collected with both measures. Written reports were analyzed with the HVDC and results of the two instruments were compared using Pearson correlations. Results showed that correlations were high for dominant characters, pleasantness of dream content, and body-related experiences. However, some DL-Q items showed low correlations and others could not be compared directly, as the HVDC did not include the same set of items. The DL-Q showed satisfactory validity and reliability as a measure of dream criteria and may serve as an effective tool for diagnosis and evaluation and facilitate future clinical and research studies. Nevertheless, some items could not be compared as part of this study and should be validated in future investigations.
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spelling doaj.art-95711e02c5e148f386f662694396c14c2022-12-21T19:25:56ZengFrontiers Media S.A.Frontiers in Psychology1664-10782020-10-011110.3389/fpsyg.2020.585702585702The Dreamland: Validation of a Structured Dream DiaryBrigitte Holzinger0Lucille Mayer1Isabel Barros2Franziska Nierwetberg3Gerhard Klösch4Institute for Consciousness and Dream Research, Vienna, AustriaInstitute for Consciousness and Dream Research, Vienna, AustriaPsychology Department, California State University, Long Beach, CA, United StatesInstitute for Consciousness and Dream Research, Vienna, AustriaDepartment of Neurology, Medical University of Vienna, Vienna, AustriaValidated instruments for the analysis of dream contents are still scarce. Therefore, the aim of this study was to validate the Dreamland Questionnaire (DL-Q) by comparing its results to those of the Hall and van de Castle Coding System (HVDC). Twenty-two participants voluntarily filled in a written dream report as well as our DL-Q questionnaire, in total 30 dreams were collected with both measures. Written reports were analyzed with the HVDC and results of the two instruments were compared using Pearson correlations. Results showed that correlations were high for dominant characters, pleasantness of dream content, and body-related experiences. However, some DL-Q items showed low correlations and others could not be compared directly, as the HVDC did not include the same set of items. The DL-Q showed satisfactory validity and reliability as a measure of dream criteria and may serve as an effective tool for diagnosis and evaluation and facilitate future clinical and research studies. Nevertheless, some items could not be compared as part of this study and should be validated in future investigations.https://www.frontiersin.org/article/10.3389/fpsyg.2020.585702/fulldreamDL-QHall and van de Castle Coding Systemsleep laboratoryresearch instrument developmentquestionnaire
spellingShingle Brigitte Holzinger
Lucille Mayer
Isabel Barros
Franziska Nierwetberg
Gerhard Klösch
The Dreamland: Validation of a Structured Dream Diary
Frontiers in Psychology
dream
DL-Q
Hall and van de Castle Coding System
sleep laboratory
research instrument development
questionnaire
title The Dreamland: Validation of a Structured Dream Diary
title_full The Dreamland: Validation of a Structured Dream Diary
title_fullStr The Dreamland: Validation of a Structured Dream Diary
title_full_unstemmed The Dreamland: Validation of a Structured Dream Diary
title_short The Dreamland: Validation of a Structured Dream Diary
title_sort dreamland validation of a structured dream diary
topic dream
DL-Q
Hall and van de Castle Coding System
sleep laboratory
research instrument development
questionnaire
url https://www.frontiersin.org/article/10.3389/fpsyg.2020.585702/full
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