Body Dysmorphia Test

Research Dataset

Deenz Body Dysmorphic Scale (DBDS)

Normative and Psychometric Statistics
STRONG N=352 α=0.907 23Countries

Deenz Body Dysmorphic Scale (DBDS) normative dataset currently contains 352 participant records collected between Jun 11, 2026 and Jul 11, 2026 .

This psychometric dataset currently includes 352 anonymous participant responses collected through voluntary participation. The observed mean score was 59.72 with a standard deviation of 15.83, indicating moderate score variability within the sampled population. Internal consistency reliability analysis demonstrated excellent reliability (Cronbach alpha = 0.907). Observed skewness (-0.47) and kurtosis (0.25) were examined as indicators of distribution quality. The score distribution appeared reasonably balanced and did not suggest substantial departures from normality.

352
Participants
23
Countries
20
Scale Items
0.907
Reliability
Table 1
Dataset Overview
Assessment Deenz Body Dysmorphic Scale (DBDS)
Research Status Established Dataset
Dataset Maturity 80 /100 — STRONG
Participants 352
Countries Represented 23
Items 20
Dimensions 5
Data Collection Period Jun 11, 2026 – Jul 11, 2026
Reliability α = 0.907
Note. The current Deenz Body Dysmorphic Scale (DBDS) dataset contains 352 participant records collected from 23 countries. Dataset maturity reflects sample size, geographic diversity, and internal consistency reliability.

Table 2
Descriptive Statistics
Statistic Value
Mean Score 59.72%
Median Score 60
Standard Deviation 15.83
Variance 250.52
Standard Error 0.84
95% CI Lower 58.06
95% CI Upper 61.37
Minimum Score 14%
Maximum Score 95%
Observed Range 81
Note. M = 59.72, SD = 15.83, Median = 60. The 95% confidence interval ranged from 58.06 to 61.37.

Table 3
Sample Characteristics
Variable Summary
Participants N = 352
Countries 23
Age Information Available
Gender Information Available
Note. Demographic information was collected voluntarily. Participant counts may vary across demographic categories when information was not reported.

Figure 1
Global Participation
Note. Participants were represented across 23 countries. The largest contribution originated from DE (59.7% of available geographic records).

Table 4
Percentile Norms
Percentile Score Interpretation
10th 40% Very Low
25th 51% Below Average
50th 60% Average
75th 71% Above Average
90th 79% Elevated
Note. Percentile values provide preliminary normative benchmarks derived from the current Deenz Body Dysmorphic Scale (DBDS) sample.

Figure 2
Score Distribution
Note. Observed scores ranged from 14% to 95% (M = 59.72, SD = 15.83). Distribution characteristics included skewness (-0.47) and kurtosis (0.25). Distribution indices suggested no substantial departures from normality.

Table 5
Reliability Analysis
Metric Value
Cronbach Alpha 0.907
Reliability Classification Excellent
Participants 352
Items 20
Standard Error 0.84
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 Item Quality r Rating Q9 0.74 Excellent Q1 0.68 Excellent Q12 0.66 Excellent Q17 0.64 Excellent Q3 0.62 Excellent Q18 0.62 Excellent Q6 0.61 Excellent Q10 0.6 Excellent Q15 0.59 Excellent Q4 0.58 Excellent Q2 0.57 Excellent Q14 0.55 Excellent Q19 0.54 Excellent Q16 0.53 Excellent Q11 0.51 Excellent Q7 0.49 Acceptable Q8 0.48 Acceptable Q13 0.45 Acceptable Q5 0.42 Acceptable Q20 0.01 Problematic
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
  • Q20 (r = 0.01)
    I struggle to express myself emotionally in relationships due to my appearance concerns.
The lowest item–total correlation was observed for Q20 ("I struggle to express myself emotionally in relationships due to my appearance concerns."; r = 0.01), indicating comparatively weaker alignment with the overall construct.

Table 7
Dimension Norms
Dimension Mean SD N
Appearance Obsession 80.68% 17.82 352
Negative Self-Image 71.32% 21.64 352
Repetitive Behaviors 68.64% 21.51 352
Social Avoidance 47.89% 21.98 352
Functional Impairment 32.02% 19.57 352
Note. Dimension statistics summarize normative performance across the major constructs measured by Deenz Body Dysmorphic Scale (DBDS).

Figure 5
Dimension Profile
Note. The highest observed dimension was Appearance Obsession (80.7%), whereas the lowest observed dimension was Functional Impairment (32%). The observed difference between dimensions was 48.7 percentage points. Substantial variation was observed between dimensions.

Table 8
Dataset Growth Summary
Metric Value
Current Participants 352
Countries 23
Collection Start Jun 11, 2026
Collection End Jul 11, 2026
Months Recorded 2
Note. Growth statistics summarize cumulative participation throughout the observed data collection period.
Normative Data Notice

A total of 352 participant responses were available for this assessment. Dimension-level norms were calculated using 352 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 Body Dysmorphic Scale (DBDS). Research Dataset. Retrieved from https://drdeenz.com/do-i-have-bdd-test/statistics/

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