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NIMH Data Archive
NDA ABCD CCF OAI NIAAADA AMP SCZ HEAL

Depression, Anxiety, and Stress Scale

6,398 Shared Subjects

N/A
Clinical Assessments
Depression
03/11/2015
dass01
04/01/2024
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 record_id
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.
interview_date Date Required Date on which the interview/genetic test/sampling/imaging/biospecimen was completed. MM/DD/YYYY visit_date
sex String 20 Required Sex of subject at birth M;F; O; NR M = Male; F = Female; O=Other; NR = Not reported gender
Query dass_1 Integer Recommended I found it hard to wind down
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass1, dass21_1, dass22, dass_1s, dass_22a
Query dass_2 Integer Recommended I was aware of dryness of my mouth
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass2, dass21_2, dass_2a
Query dass_3 Integer Recommended I couldn't seem to experience any positive feeling at all
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass21_3, dass3, dass_3d
Query dass_4 Integer Recommended I experienced breathing difficulty (eg, excessively rapid breathing,breathlessness in the absence of physical exertion)
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass21_4, dass4, dass_4a
Query dass_5 Integer Recommended I found it difficult to work up the initiative to do things
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass21_5, dass42, dass5, dass_42a, dass_5d
Query dass_6 Integer Recommended I tended to over-react to situations
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass21_6, dass6, dass_6s
Query dass_7 Integer Recommended I experienced trembling (eg, in the hands)
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass21_7, dass41, dass7, dass_41a, dass_7a
Query dass_8 Integer Recommended I felt that I was using a lot of nervous energy
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass12, dass21_8, dass8, dass_12a, dass_8s
Query dass_9 Integer Recommended I was worried about situations in which I might panic and make a fool of myself
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass21_9, dass40, dass9, dass_40a, dass_9a
Query dass_10 Integer Recommended I felt that I had nothing to look forward to
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass10, dass21_10, dass_10d
Query dass_11 Integer Recommended I found myself getting agitated
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass11, dass21_11, dass39, dass_11s, dass_39a
Query dass_12 Integer Recommended I found it difficult to relax
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass12, dass21_12, dass8, dass_12s, dass_8a
Query dass_13 Integer Recommended I felt down-hearted and blue
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass13, dass21_13, dass26, dass_13d, dass_26a
Query dass_14 Integer Recommended I was intolerant of anything that kept me from getting on with what I was doing
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass14, dass21_14, dass35, dass_14s, dass_32a
Query dass_15 Integer Recommended I felt I was close to panic
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass15, dass21_15, dass28, dass_15a, dass_28a
Query dass_16 Integer Recommended I was unable to become enthusiastic about anything
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass16, dass21_16, dass31, dass_16d, dass_31a
Query dass_17 Integer Recommended I felt I wasn't worth much as a person
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass17, dass21_17, dass_17d
Query dass_18 Integer Recommended I felt that I was rather touchy
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass18, dass21_18, dass_18s
Query dass_19 Integer Recommended I was aware of the action of my heart in the absence of physical exertion (eg, sense of heart rate increase, heart missing a beat)
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass19, dass21_19, dass25, dass_19a, dass_25a
Query dass_20 Integer Recommended I felt scared without any good reason
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass20, dass21_20, dass_20a
Query dass_21 Integer Recommended I felt that life was meaningless
0::3; 999
0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass21, dass21_21, dass38, dass_21d, dass_38a
Query dass_depr_sc Integer Required Depression score 0-9=Normal; 10-13=Mild; 14-20=Moderate; 21-27=Severe; 28+=Extremely Severe dass21_depression, dass_depression
Query dass_anx_sc Integer Required Anxiety score 0-7=Normal; 8-9=Mild; 10-14=Moderate; 15-19=Severe; 20+=Extremely Severe dass21_anxiety, dass_anxiety
Query dass_stress_sc Integer Required Stress score 0-14=Normal; 15-18=Mild; 19-25=Moderate; 26-33=Severe; 34+=Extremely Severe dass21_stress, dass_stress
Query dass_22 Integer Recommended I found myself getting upset by quite trivial things 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass1, dass_1a
Query afars_13 Integer Recommended I have trouble swallowing 0::3 0=Never true; 1=Sometimes true; 2=Most time true; 3=Always true dass23, dass_23
Query dass_24 Integer Recommended I couldn't seem to get any enjoyment out of the things I did 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass24
Query dass_25 Integer Recommended I perspired noticeably (eg, hands sweaty) in the absence of high temperatures or physical exertion 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass19, dass_19a
Query dass_26 Integer Recommended I felt sad and depressed 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass13, dass_13a
Query dass_27 Integer Recommended I found that I was very irritable 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass27
Query dass_28 Integer Recommended I had a feeling of faintness 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass15, dass_15a
Query afars_26 Integer Recommended I cant calm down once I am upset 0::3 0=Never true; 1=Sometimes true; 2=Most time true; 3=Always true dass29, dass_29
Query dass_30 Integer Recommended I feared that I would be "thrown" by some trivial but unfamiliar task 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass30
Query dass_31 Integer Recommended I felt that I had lost interest in just about everything 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass16, dass_16a
Query dass_32 Integer Recommended I found it difficult to tolerate interruptions to what I was doing 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass32
Query dass_33 Integer Recommended I was in a state of nervous tension 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass33
Query dass_34 Integer Recommended I felt I was pretty worthless 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass34
Query dass_35 Integer Recommended I found myself getting impatient when I was delayed in any way (eg, lifts, traffic lights, being kept waiting) 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass14, dass_14a
Query dass_36 Integer Recommended I felt terrified 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass36
Query dass_37 Integer Recommended I could see nothing in the future to be hopeful about 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass37
Query dass_38 Integer Recommended I felt that life wasn't worthwhile 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass21, dass_21a
Query afars_4 Integer Recommended I get upset easily 0::3; 999 0=Never true; 1=Sometimes true; 2=Most time true; 3=Always true; 999=not answered/missing dass11, dass_11a
Query dass_40 Integer Recommended I found myself in situations that made me so anxious I was most relieved when they ended 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass9, dass_9a
Query dass_41 Integer Recommended I had a feeling of shakiness (eg, legs going to give way) 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass7, dass_7a
Query dass_42 Integer Recommended I just couldn't seem to get going 0::3; 999 0=Did not apply to me at all -NEVER; 1=Applied to me to some degree, or some of the time SOMETIMES; 2=Applied to me to a considerable degree, or a good part of time -OFTEN; 3=Applied to me very much, or most of the time ALMOST ALWAYS; 999=not answered/missing dass5, dass_5a
Query version_form String 121 Recommended Form used/assessment name
Query visnum Float Recommended Numeric Visit Number -1.5 = Pre-Screening; -1 = Screening; 0 = Baseline; ## = Visit ## (from 1 to 10); Whole numbers = standard monthly visits; #.001 - #.009 = Unscheduled; #.1 = End of Phase 1; #.2 = End of Phase 2; #.3 = End of Phase 3; #.4 = End of Open Choice Phase; #.5 = End of Study; #.6 = Genetic Analysis; 1000=all visits visit_number
visit String 60 Recommended Visit name
qc_dass_dep_num_items Integer Recommended Quality Control (QC) DASS Depression subscale Total number of items
qc_dass_dep_num_nonresp Integer Recommended Quality Control (QC) DASS Depression subscale number of non-response items
qc_dass_anx_num_items Integer Recommended Quality Control (QC) DASS Anxiety subscale Total number of items
qc_dass_anx_num_nonresp Integer Recommended Quality Control (QC) DASS Anxiety subscale number of non-response items
qc_dass_stress_num_items Integer Recommended Quality Control (QC) DASS Stress subscale Total number of items
qc_dass_stress_num_nonresp Integer Recommended Quality Control (QC) DASS Stress subscale number of non-response items
time_first_click String 11 Recommended Time at first click HH:MM:SS AM/PM dass_time_first_click
time_last_click String 11 Recommended Time at last click HH:MM:SS AM/PM dass_time_last_click
time_page_submit String 11 Recommended Time at scale submission HH:MM:SS AM/PM dass_time_page_submit
time_click_count Integer Recommended (Total) Number of clicks during scale completion dass_time_click_count
tot_timing Float Recommended Total timing/time to complete scale In minutes dass_tot_timing
qc_tot_num_items Integer Recommended Quality Control (QC) (total) number of items (completed) dass_tot_num_items
qc_tot_num_nonresp Integer Recommended Quality Control (QC) (total) number of non-response items qc_dass_tot_num_nonresp
study String 100 Recommended Study; The code for each individual study
Data Structure

This page displays the data structure defined for the measure identified in the title and structure short name. The table below displays a list of data elements in this structure (also called variables) and the following information:

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  • Description: A basic description
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