Deenz Psychotic Rating Scale (DPRS-45) Research Statistics

Assessment Information

Sample Adequacy: Developing dataset with emerging normative stability.
Research Status: DEVELOPING DATASET
Items: 25
Dimensions: 5
Dataset Maturity: The current dataset achieved a maturity score of 45/100 and is classified as DEVELOPING.

Table 1

Normative Dataset Overview

Descriptive characteristics of the current normative sample.

Participants	41
Demographic Variables	Age Group, Gender, Country
Countries Represented	12
Dataset Maturity	45/100 — DevelopingDataset
Research Status	DEVELOPING NORMATIVE DATASET
Sample Adequacy	Developing dataset with emerging normative stability.
Data Collection Period	Jun 11, 2026 – Jun 16, 2026

The current normative dataset consists of41 participants collected from12 countries.

Table 2

Score Statistics

Measures of central tendency and variability.

Mean Score	48.46%
Median Score	45
Standard Deviation	24.64
Variance	607
Standard Error (SEM)	3.85
Reliability (α)	0.956
Items	25
Dimensions	5

The sample demonstrated a mean score of48.46% (Mdn = 45, SD = 24.64).

Table 3

Distribution Characteristics

Distribution shape and score dispersion indicators.

Observed Score Range	83
Maximum Observed Score	83%
Minimum Observed Score	0%
95% Confidence Interval	40.92– 56
Skewness	-0.35
Kurtosis	-1.02

Observed skewness(-0.35) and kurtosis(-1.02) provide indicators of distribution quality and normality.

Global Participation Interpretation

The current dataset includes responses from 12countries. The largest contribution currently comes from US which represents approximately 34.1% of all participants. International participation enhances sample diversity and improves the generalizability of normative findings across geographic regions.

Participant Demographics

Age Distribution

Gender Distribution

Normative Percentile Distribution

Normative Interpretation

The current normative dataset indicates that approximately 10% of participants scored below18%, while 90% scored above this level.The median score was45%, meaning that half of participants scored below this value and half scored above it. Scores of69% or greater were achieved by approximately the highest 25% of participants, whereas scores of76% or greater were achieved by approximately the highest 10% of participants. These percentile values provide preliminary normative benchmarks that can be used to contextualize individual assessment results relative to the current community sample.

Distribution Histogram

Distribution Interpretation

This histogram displays the distribution of participant scores across the assessment. A balanced bell-shaped pattern generally indicates good score dispersion and stronger normative utility, whereas highly skewed distributions may indicate floor effects, ceiling effects, or sample bias.

Distribution Quality

The score distribution demonstrateda skewness of -0.35 and a kurtosis of -1.02.

The score distribution appears reasonably balanced and does not currently suggest substantial departures from normality.

Reliability Analysis

EXCELLENT RELIABILITY

The assessment demonstrated excellent internal consistency reliability (Cronbach's α = 0.956), suggesting that the assessment items measure a relatively coherent psychological construct.

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: 41
Minimum Recommended: 100

Dimension Norms

Dimension Interpretation

The highest scoring dimension in the current sample was Disorganization (69.1%). The lowest scoring dimension was Hallucinations (37.3%). Dimensions located above the 50% reference line represent characteristics that were more strongly endorsed within the current participant sample. Standard deviations indicate the degree of variability observed across participant responses.

Dataset Growth Interpretation

The current normative dataset contains 41 participants . The cumulative growth curve illustrates how the participant sample has expanded over time. Increasing sample sizes generally improve the stability of percentile norms, reliability estimates, and other psychometric statistics.

Normative Data Notice

A total of 41 participant responses were available for this assessment. Dimension-level norms were calculated using 26 valid response records. Approximately 15 response record(s) were excluded from dimension-level normative calculations due to incomplete response patterns, historical data inconsistencies, or automated data-quality screening procedures.

Research Interpretation

This psychometric dataset currently includes 41 anonymous participant responses collected through voluntary participation. The observed mean score was 48.46 with a standard deviation of 24.64, indicating moderate score variability within the sampled population. Internal consistency reliability analysis demonstrated excellent reliability (Cronbach alpha = 0.956). Observed skewness (-0.35) and kurtosis (-1.02) were examined as indicators of distribution quality. The score distribution appeared reasonably balanced and did not suggest substantial departures from normality.

Ethical & Research Notice

All responses included in this dataset are collected anonymously through voluntary participation. No personally identifying information is stored. Results are intended exclusively for educational, psychometric, research, and self-reflective purposes and should not be used as clinical diagnoses. Drdeenz continuously monitors response quality, distribution stability, and internal consistency to support ethical psychometric reporting.

Dataset Export

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Research Citation

Deenz Psychotic Rating Scale (DPRS-45). Drdeenz Research Dataset. Retrieved from https://drdeenz.com/psychosis-test/statistics/

License: Creative Commons Attribution 4.0 International (CC BY 4.0)

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