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Borderline Personality Test – Borderline Personality Questionnaire

Research Dataset

Deenz Borderline Personality Questionnaire (DBPQ)

Normative and Psychometric Statistics
PRELIMINARY N=31 α=0 15Countries
Abstract

Deenz Borderline Personality Questionnaire (DBPQ) normative dataset currently contains 31 participant records collected between Jul 14, 2026 and Sep 4, 2026 .

This psychometric dataset currently includes 31 anonymous participant responses collected through voluntary participation. The observed mean score was 60.1 with a standard deviation of 15.55, indicating moderate score variability within the sampled population. Internal consistency reliability analysis produced a Cronbach alpha of 0, which falls below commonly accepted psychometric standards and should be interpreted cautiously until additional data are collected. Observed skewness (0.21) and kurtosis (-0.8) were examined as indicators of distribution quality. The score distribution appeared reasonably balanced and did not suggest substantial departures from normality.

31
Participants
15
Countries
54
Scale Items
0
Reliability
Table 1
Dataset Overview
Assessment Deenz Borderline Personality Questionnaire (DBPQ)
Research Status Developing Dataset
Dataset Maturity 15 /100 — PRELIMINARY
Participants 31
Countries Represented 15
Items 54
Dimensions 4
Data Collection Period Jul 14, 2026 – Sep 4, 2026
Reliability α = 0
Note. The current Deenz Borderline Personality Questionnaire (DBPQ) dataset contains 31 participant records collected from 15 countries. Dataset maturity reflects sample size, geographic diversity, and internal consistency reliability.
Table 2
Descriptive Statistics
Statistic Value
Mean Score 60.1%
Median Score 59
Standard Deviation 15.55
Variance 241.82
Standard Error 2.79
95% CI Lower 54.62
95% CI Upper 65.57
Minimum Score 34%
Maximum Score 92%
Observed Range 58
Note. M = 60.1, SD = 15.55, Median = 59. The 95% confidence interval ranged from 54.62 to 65.57.
Table 3
Sample Characteristics
Variable Summary
Participants N = 31
Countries 15
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 15 countries. The largest contribution originated from DE (19.4% of available geographic records).
Table 4
Percentile Norms
Percentile Score Interpretation
10th 42% Very Low
25th 47% Below Average
50th 59% Average
75th 69% Above Average
90th 81% Elevated
Note. Percentile values provide preliminary normative benchmarks derived from the current Deenz Borderline Personality Questionnaire (DBPQ) sample.
Figure 2
Score Distribution
Note. Observed scores ranged from 34% to 92% (M = 60.1, SD = 15.55). Distribution characteristics included skewness (0.21) and kurtosis (-0.8). Distribution indices suggested no substantial departures from normality.
Table 5
Reliability Analysis
Metric Value
Cronbach Alpha 0
Reliability Classification Unacceptable
Participants 31
Items 54
Standard Error 2.79
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: 31
Minimum Recommended: 100
Table 7
Dimension Norms
Dimension Mean SD N
Mood & Anger 69.55% 19.45 31
Identity & Thought Patterns 61.26% 19.48 31
Impulsivity & Self-Harm 56.13% 16.89 31
Relationships & Fear of Abandonment 53.35% 17.16 31
Note. Dimension statistics summarize normative performance across the major constructs measured by Deenz Borderline Personality Questionnaire (DBPQ).
Figure 5
Dimension Profile
Note. The highest observed dimension was Mood & Anger (69.6%), whereas the lowest observed dimension was Relationships & Fear of Abandonment (53.4%). The observed difference between dimensions was 16.2 percentage points. Substantial variation was observed between dimensions.
Table 8
Dataset Growth Summary
Metric Value
Current Participants 31
Countries 15
Collection Start Jul 14, 2026
Collection End Sep 4, 2026
Months Recorded 3
Note. Growth statistics summarize cumulative participation throughout the observed data collection period.
Normative Data Notice

A total of 31 participant responses were available for this assessment. Dimension-level norms were calculated using 31 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 Borderline Personality Questionnaire (DBPQ). Research Dataset. Retrieved from https://drdeenz.com/borderline-personality-test/statistics/

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