Deenz Multidimensional Anhedonia Scale (DMAS-27)
normative dataset currently contains
543
participant records collected between
Jun 11, 2026
and
Sep 8, 2026
.
This psychometric dataset currently includes 543 anonymous participant responses collected through voluntary participation. The observed mean score was 64.74 with a standard deviation of 15.85, indicating moderate score variability within the sampled population. Internal consistency reliability analysis demonstrated excellent reliability (Cronbach alpha = 0.916). Observed skewness (-0.91) and kurtosis (1.39) were examined as indicators of distribution quality. The score distribution appeared reasonably balanced and did not suggest substantial departures from normality.
543
Participants
51
Countries
27
Scale Items
0.916
Reliability
Table 1
Dataset Overview
Assessment
Deenz Multidimensional Anhedonia Scale (DMAS-27)
Research Status
Robust Dataset
Dataset Maturity
90
/100 —
ROBUST
Participants
543
Countries Represented
51
Items
27
Dimensions
3
Data Collection Period
Jun 11, 2026
–
Sep 8, 2026
Reliability
α =
0.916
Note.
The current Deenz Multidimensional Anhedonia Scale (DMAS-27) dataset contains 543 participant records collected from 51 countries. Dataset maturity reflects sample size, geographic diversity, and internal consistency reliability.
Table 2
Descriptive Statistics
Statistic
Value
Mean Score
64.74%
Median Score
67
Standard Deviation
15.85
Variance
251.16
Standard Error
0.68
95% CI Lower
63.41
95% CI Upper
66.08
Minimum Score
2%
Maximum Score
96%
Observed Range
94
Note.
M = 64.74, SD = 15.85, Median = 67. The 95% confidence interval ranged from 63.41 to 66.08.
Table 3
Sample Characteristics
Variable
Summary
Participants
N =
543
Countries
51
Age Information
Available
Gender Information
Available
Note.
Demographic information was collected voluntarily. Participant counts may vary across demographic categories when information was not reported.
Age Distribution
Age Group
Participants
25-34
102
18-24
98
under18
63
35-44
55
45-54
38
55plus
31
prefer_not
22
Gender Distribution
Gender
Participants
Male
203
Female
181
Prefer_not
25
Figure 1
Global Participation
Note.
Participants were represented across 51 countries. The largest contribution originated from DE (21.9% of available geographic records).
Country
Participants
Percent
DE
119
21.9%
US
88
16.2%
FR
76
14%
UA
34
6.3%
CA
22
4.1%
GB
21
3.9%
ES
14
2.6%
NL
14
2.6%
SE
12
2.2%
AT
11
2%
BR
10
1.8%
IE
10
1.8%
RU
9
1.7%
PL
9
1.7%
AU
9
1.7%
CH
7
1.3%
FI
7
1.3%
IN
6
1.1%
KZ
6
1.1%
BY
5
0.9%
BE
5
0.9%
SG
4
0.7%
IL
3
0.6%
PH
3
0.6%
ID
3
0.6%
AE
2
0.4%
NZ
2
0.4%
AR
2
0.4%
CO
2
0.4%
MX
2
0.4%
GE
2
0.4%
EE
2
0.4%
IQ
2
0.4%
ZA
2
0.4%
UZ
2
0.4%
RO
1
0.2%
MQ
1
0.2%
PY
1
0.2%
SK
1
0.2%
SA
1
0.2%
CZ
1
0.2%
LT
1
0.2%
RS
1
0.2%
CY
1
0.2%
BG
1
0.2%
HN
1
0.2%
GR
1
0.2%
HK
1
0.2%
AM
1
0.2%
EG
1
0.2%
KE
1
0.2%
Table 4
Percentile Norms
Percentile
Score
Interpretation
10th
44%
Very Low
25th
58%
Below Average
50th
67%
Average
75th
75%
Above Average
90th
83%
Elevated
Note.
Percentile values provide preliminary normative benchmarks derived from the current Deenz Multidimensional Anhedonia Scale (DMAS-27) sample.
Figure 2
Score Distribution
Note.
Observed scores ranged from 2% to 96% (M = 64.74, SD = 15.85). Distribution characteristics included skewness (-0.91) and kurtosis (1.39).
Distribution indices suggested no substantial departures from normality.
Table 5
Reliability Analysis
Metric
Value
Cronbach Alpha
0.916
Reliability Classification
Excellent
Participants
543
Items
27
Standard Error
0.68
Note.
Internal consistency was estimated using Cronbach alpha. Reliability estimates are based on the current normative dataset and may change as additional responses are collected.
Item–Total Correlations
Item Analysis Interpretation
Item–total correlations were generally strong across the assessment, indicating that most items contribute effectively to the measurement of the underlying construct.
The analysis identified1
itemthat may benefit from future review.
Items Recommended for Future Review
Q27
(r = -0.02)
I often make little effort to enjoy activities I used to like.
The lowest item–total correlation was observed for Q27 ("I often make little effort to enjoy activities I used to like."; r = -0.02), indicating comparatively weaker alignment with the overall construct.
Table 7
Dimension Norms
Dimension
Mean
SD
N
Emotional Anhedonia
68.09%
16.66
543
Social Anhedonia
67.65%
18.59
543
Physical Anhedonia
58.43%
19.94
543
Note.
Dimension statistics summarize normative performance across the major constructs measured by Deenz Multidimensional Anhedonia Scale (DMAS-27).
Figure 5
Dimension Profile
Note.
The highest observed dimension was Emotional Anhedonia (68.1%), whereas the lowest observed dimension was Physical Anhedonia (58.4%). The observed difference between dimensions was 9.7 percentage points. Moderate variation was observed between dimensions.
Table 8
Dataset Growth Summary
Metric
Value
Current Participants
543
Countries
51
Collection Start
Jun 11, 2026
Collection End
Sep 8, 2026
Months Recorded
4
Note.
Growth statistics summarize cumulative participation throughout the observed data collection period.
Normative Data Notice
A total of
543
participant responses were available for this assessment.
Dimension-level norms were calculated using
543
valid response records.
Approximately
0
response record(s) were excluded from dimension-level normative calculations due to incomplete response patterns.
Limitations
Normative statistics are derived from voluntary participation and may not represent all populations. Reliability estimates, percentile norms, and dimension statistics should be interpreted in the context of the current sample and may change as additional responses are collected.
Ethical Statement
All records included in this dataset were collected anonymously. No personally identifying information is stored. Data are intended for educational, psychometric, and research purposes.
Recommended Citation
Deenz Multidimensional Anhedonia Scale (DMAS-27). Research Dataset. Retrieved from https://drdeenz.com/anhedonia-test/statistics/