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NIMH Data Archive
NDA ABCD CCF OAI NIAAADA AMP SCZ HEAL

Delusion Assessment Scale

259 Shared Subjects

N/A
Clinical Assessments
Questionnaire
09/24/2015
del01
09/24/2015
View Change History
01
Definition
Submission Template
Query Element Name Data Type Size Required Description Value Range Notes Aliases
subjectkey GUID Required The NDAR Global Unique Identifier (GUID) for research subject NDAR*
src_subject_id String 20 Required Subject ID how it's defined in lab/project subjid
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY
interview_age Integer Required Age in months at the time of the interview/test/sampling/imaging. 0::1440 Age is rounded to chronological month. If the research participant is 15-days-old at time of interview, the appropriate value would be 0 months. If the participant is 16-days-old, the value would be 1 month.
sex String 20 Required Sex of subject at birth M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported gender
Query rods Integer Recommended RESOLUTION OF DELUSIONS 1::5 1 = Delusional belief is not present currently. Patient is able to recognize that the delusional belief present earlier in the episode was false and/or was a result of a mental illness. (Skip out; no need to administer remainder of DAS.);2 = Delusional belief is not present currently. Patient is able to recognize that the delusional belief present earlier in the episode may have been false and/or may have been the result of a mental illness. (Administer entire scale based on partially resolved delusion.);3 = Delusional belief is not present currently. Patient has near certainty that the delusional belief present earlier in the episode was true; any doubts are only transient. (Administer entire scale based on partially resolved delusion.) 4 = Delusional belief is not present currently. Patient has unwavering conviction that the delusional belief present earlier in the episode was true. (Administer entire scale based on partially resolved delusion.) 5 = Delusional belief is present currently. (Complete entire scale.)
Query das_1 Integer Recommended A. CONVICTION: I. Subjective Feeling Of Certainty (rated based on self-report as expressed during interview) 1::3 1 = Ability to offer doubt about belief (e.g., acknowledgement that belief could be the result of an illness) although unwilling to fully dismiss belief as inaccurate);2 = Near certainty the belief is true; any doubts are only transient;3 = Absolute and unwavering conviction das1
Query das_2 Integer Recommended A. CONVICTION: II. Acting On The Belief (rated using historical information and explanation of previous behavior to interviewer; also assesses whether judgment is affected by belief) 1::3 1 = Belief does not influence actions;2 = Acts or has acted on the belief, but such actions do not have significant consequences such as impairing functioning and or affecting others (e.g., acting suspiciously towards hospital staff; changing locks on doors, repeated visits to physicians because of a somatic preoccupation, complaining to police about neighbors);3 = Actions demonstrate markedly impaired judgment; actions have a significant impact on the patient's life with adverse consequences to the patient or others (e;g;, acts that directly resulted in hospitalization, such as refusing to eat or making a suicide attempt) das2
Query das_3 Integer Recommended A. CONVICTION: III. Acting Irrationally Towards Interviewer (rated based on interviewer's observations, including responses to attempts to clarify and to confrontation) 1::3 1 = Not distrustful towards interviewer;2 = Distrustful as in questioning motives of interviewer (e;g;, refusal to provide clinician with any personal information or asking to be discharged without treatment because no illness is present;3 = Refusal to answer even the simplest personal questions or is mute das3
Query das_4 Integer Recommended A. CONVICTION: IV. Accommodation (observer's assessment of responses to confrontation and reality testing by interviewer, in contrast to item I which assesses subjective level of conviction) 1::3 1 = Confrontation leads to modification of belief;2 = Confrontation leads to consideration of alternative explanations or modification of some aspects of the belief, but central belief is unchanged;3 = Confrontation has no effect on the belief and does not lead to consideration of alternative explanations das4
Query das_5 Integer Recommended B. EXTENSION: V. People And Objects Involved 1::3 1 = The number of objects involved is discrete (e.g., diseased organ(s) in the case of somatic delusions, organizations and their employees, e.g., FBI, next door neighbors, a specific doctor's staff or a specific phone is tapped);2 = The number of people or organizations involved cannot be defined clearly but appears to be limited by identifiable characteristics and can be organized around a central theme (e.g. belief colleagues at work are conspiring against the individual and may have enlisted others);3 = Rater is unable to obtain a clear and complete description of the delusion; there are no defining characteristics that limit the number of individuals or organizations involved in the belief; For somatic delusions the organs or diseases that are the focus of the concerns cannot be identified das5
Query das_6 Integer Recommended B. EXTENSION: VI. Places/Situations In Which The Delusional Idea Is Prominent 1::3 1 = Delusional ideation is limited to a single context/place (e.g., work/home/ traveling in a subway); Paranoia is limited to home or work but does not involve hospital; Because the patient brings his/her physical self into different settings, a circumscribed somatic delusion is rated as 1;2 = The delusional ideas occur in multiple contexts or places that have common identifiable characteristics (e;g;, the neighborhood, hospital and other locations consistent with a specific delusional theme such as persecution based on ethnicity);3 = There are no defining characteristics that limit places/situations that may be involved in the beliefs das6
Query das_7 Integer Recommended C. BIZARRENESS: VII. Distortion Of Consensual Reality (Implausibility) 1::3 1 = May be considered an extreme value judgment or remote possibility but is not patently absurd because of physical impossibility (e.g., somatic delusion of having a cancer or paranoid delusion of being followed);2 = Content of belief is obviously implausible but is not physically impossible (e.g., somatic delusion of having been poisoned by persecutor, of being the victim of conspiracy by coworkers to cause termination of employment, or a paranoid delusion that a neighbor is tapping the telephone or has hacked into the patient's computer);3 = Belief is patently absurd and physically impossible (e;g;, delusions of thoughts being withdrawn or inserted electronically or being monitored by satellite) das7
Query das_8 Integer Recommended C. BIZARRENESS: VIII. Relationship To Cultural Context 1::3 1 = Belief is consistent with patient's cultural background and could be seen as plausible by individuals of the same background (e;g;, conviction of persecution that is based on race or gender);2 = Although members of the culture would not accept the belief as plausible, the belief is directly related to the cultural context (e;g;, patient believes he has been singled out for persecution to set an example for all members of his race/religion or because of being chosen for a special mission by God);3 = Belief is entirely deviant from those held by members of patient's culture; (e;g;, belief that one has been chosen to colonize space for his race) das8
Query das_9 Integer Recommended D. DISORGANIZATION: IX. Internal Consistency (ratings based upon interview) 1::3 1 = Single or multiple beliefs are clearly connected to the principal delusional idea or a single theme (e.g., guilty, hopeless and deserves to be punished because of a long-past sexual indiscretion);2 = Multiple delusional ideas are present that are related to a central theme; However, the ideas involve more than one false assumption and are not clearly connected (e.g., patient will be punished by Internal Revenue Service for taking an extra tax exemption 20 years ago and neighbors are now spying and monitoring behavior for the police);3 = Multiple delusional ideas that cannot be connected to a single theme (e;g;, delusions of being persecuted without apparent reason, of having sexual organs removed and of receiving telepathic messages) das9
Query das_10 Integer Recommended D. DISORGANIZATION: X. Cognitive Integration (rated based upon interview) 1::3 1 = Patient can explain how multiple delusional ideas are connected to a single primary belief or has a single delusion that tells a cohesive story;2 = There are multiple parts to a single delusional idea, or multiple delusional ideas, that the patient attempts to integrate but cannot explain cohesively how multiple ideas are connected;3 = Patient recognizes the lack of relationship of multiple delusional ideas with a single theme or a principal belief, and either cannot or will not provide an explanation das10
Query das_11 Integer Recommended D. DISORGANIZATION: XI. Temporal Continuity of the Most Prominent Delusion(s) (Rated using historical information but based on assessment during interview) 1::3 1 = The same delusional idea or ideas has/have been held consistently during an episode of illness without the addition of new ideas;2 = During the current episode or the interview, there has been one consistently held prominent delusional idea, but some modification has occurred or another delusion has developed; Additional transient ideas may have developed or resolved;3 = The content of the most prominent delusion has changed significantly during the episode of illness or has been replaced by a different delusion (e.g., a fear of being followed in the neighborhood has become a fear of being poisoned by another patient) das11
Query das_12 Integer Recommended E. PRESSURE: XII. Temporal Pressure (rated using observations, including those of others) 1::3 1 = Most of the day is spent without being concerned about the belief;2 = Preoccupied with the belief enough of the day to interfere with the completion of tasks such as routine chores or work;3 = Preoccupation with the belief is nearly constant and interferes with completion of all or nearly all simple responsibilities das12
Query das_13 Integer Recommended E. PRESSURE: XIII. Temporal Pressure During Interview (rated based on interview) 1::3 1 = Thoughts of the belief do not intrude during the interview and engagement in extended discussion of other topics is possible;2 = The belief or related ideas intrude into the interview, but distraction to other topics is possible;3 = The belief or related thoughts repeatedly interrupt the interview and engagement in discussion of other topics for more than a few moments or sentences is not feasible das13
Query das_14 Integer Recommended E. PRESSURE: XIV. Emotional Pressure (rated primarily through interview but can incorporate observations of others) 1::3 1 = Belief does not cause obvious affective distress or concern;2 = Discussion of belief causes subjective or objective emotional distress (e;g;, anxiety or depression);3 = Discussion of belief causes marked distress leading to intense expressions of affect (e;g;, pronounced fear, overt crying or fearfulness) das14
Query das_16 Integer Recommended E. PRESSURE: XV. CONGRUENCE Rate the most prominent delusion only. Extent to which delusional belief is consistent with the disturbance of mood 1::3 1 = There is no relationship between delusional belief and a mood disturbance (e;g;, a paranoid delusional in which the patient believes persecution is unjust and is not due to a personal misdeed or negative attribute);2 = The delusional belief is consistent with the theme of the mood disturbance through an identified personal failing on the part of the patient, but the connection is tenuous (paranoid delusion about conspiracy to terminate job because performance has been impaired during depression; paranoid delusion that children are stealing money because patient has been unavailable to grandchildren);3 = Delusions of guilt, hopeless or nihilism; somatic delusions (by convention); paranoid delusion in which persecution is attributed to a real or imagined personal misdeed; belief that current depression is untreatable and that patient will require life-long state hospitalization das16
Query das_impact Integer Recommended Impact factor Sum of Items 2,3,12,13,14 - not scored if any are missing
Query das_disorg Integer Recommended Disorganization factor Sum of Items 9,10,11 - not scored if any are missing
Query das_convict Integer Recommended Conviction factor Sum of Items 1,4 - not scored if any are missing
Query das_bizzare Integer Recommended Bizarreness factor Sum of Items 7,8 - not scored if any are missing
Query das_extension Integer Recommended Extension factor Sum of Items 5,6 - not scored if any are missing
Query site String 101 Recommended Site Study Site
Query week Float Recommended Week in level/study 99=week 10-week 14 intid
Query study_id Integer Recommended Study ID number 46=Acute Phase; 47=Stabilization Phase
Data Structure

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  • Description: A basic description
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