Ψ Drdeenz_ The Psychometric Tool
☰
🏠 Main Page 📝 Questionnaire
Research Dataset

Developmental Trauma Profile (DTP)

Normative and Psychometric Statistics
PRELIMINARY N=35 α=0.988 2Countries
Abstract

Developmental Trauma Profile (DTP) normative dataset currently contains 35 participant records collected between Jun 27, 2026 and Jun 28, 2026 .

This psychometric dataset currently includes 35 anonymous participant responses collected through voluntary participation. The observed mean score was 15.69 with a standard deviation of 15.69, indicating moderate score variability within the sampled population. Internal consistency reliability analysis demonstrated excellent reliability (Cronbach alpha = 0.988). Observed skewness (0.59) and kurtosis (-1.01) were examined as indicators of distribution quality. The score distribution appeared reasonably balanced and did not suggest substantial departures from normality.

35
Participants
2
Countries
144
Items
0.988
Reliability
Table 1
Dataset Overview
Assessment Developmental Trauma Profile (DTP)
Research Status Developing Dataset
Dataset Maturity 35 /100 — PRELIMINARY
Participants 35
Countries Represented 2
Items 144
Dimensions 18
Data Collection Period Jun 27, 2026 – Jun 28, 2026
Reliability α = 0.988
Note. The current Developmental Trauma Profile (DTP) dataset contains 35 participant records collected from 2 countries. Dataset maturity reflects sample size, geographic diversity, and internal consistency reliability.
Table 2
Descriptive Statistics
Statistic Value
Mean Score 15.69%
Median Score 13
Standard Deviation 15.69
Variance 246.28
Standard Error 2.65
95% CI Lower 10.49
95% CI Upper 20.88
Minimum Score 0%
Maximum Score 47%
Observed Range 47
Note. M = 15.69, SD = 15.69, Median = 13. The 95% confidence interval ranged from 10.49 to 20.88.
Table 3
Sample Characteristics
Variable Summary
Participants N = 35
Countries 2
Age Information Not Available
Gender Information Not 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 2 countries. The largest contribution originated from IN (77.1% of available geographic records).
Table 4
Percentile Norms
Percentile Score Interpretation
10th 0% Very Low
25th 0% Below Average
50th 13% Average
75th 28% Above Average
90th 39% Elevated
Note. Percentile values provide preliminary normative benchmarks derived from the current Developmental Trauma Profile (DTP) sample.
Figure 2
Score Distribution
Note. Observed scores ranged from 0% to 47% (M = 15.69, SD = 15.69). Distribution characteristics included skewness (0.59) and kurtosis (-1.01). Distribution indices suggested no substantial departures from normality.
Table 5
Reliability Analysis
Metric Value
Cronbach Alpha 0.988
Reliability Classification Excellent
Participants 35
Items 144
Standard Error 2.65
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
Insufficient Sample Size

Item–total correlations are not currently reported because the assessment has fewer than 100 participant responses. Psychometric item analysis requires a larger sample to produce stable and interpretable estimates.

Current Participants: 35
Minimum Recommended: 100
Table 7
Dimension Norms
Dimension Mean SD N
Self-Worth 20.15% 30.3 33
Boundaries 19.85% 29.78 33
Emotional Regulation 19.7% 29.55 33
Trust in Others 19.24% 29.02 33
Perfectionism 17.12% 25.83 33
Positive Childhood Experiences 16.67% 25.08 33
Supportive Relationships 16.36% 24.73 33
Self-Awareness 14.85% 24.86 33
Childhood Experiences 14.57% 17.16 35
Emotional Suppression 14.09% 18.93 33
Resilience 14.09% 23.13 33
Recovery 13.79% 22.64 33
Sense of Belonging 13.36% 18.2 33
Hypervigilance 13.18% 21.02 33
People Pleasing 13.03% 20.46 33
Trust & Security 10.45% 14 33
Consistency 10.3% 13.52 33
Emotional Availability 9.7% 12.99 33
Note. Dimension statistics summarize normative performance across the major constructs measured by Developmental Trauma Profile (DTP).
Figure 5
Dimension Profile
Note. The highest observed dimension was Self-Worth (20.2%), whereas the lowest observed dimension was Emotional Availability (9.7%). The observed difference between dimensions was 10.5 percentage points. Moderate variation was observed between dimensions.
Table 8
Dataset Growth Summary
Metric Value
Current Participants 35
Countries 2
Collection Start Jun 27, 2026
Collection End Jun 28, 2026
Months Recorded 1
Note. Growth statistics summarize cumulative participation throughout the observed data collection period.
Normative Data Notice

A total of 35 participant responses were available for this assessment. Dimension-level norms were calculated using 35 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

Developmental Trauma Profile (DTP). Research Dataset. Retrieved from https://drdeenz.com/childhood-trauma-test/statistics/

Dataset Export

Download CSV Dataset