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Nyctophobia Test - Nyctophobia Severity Assessment (NSA)

Research Dataset

Nyctophobia Severity Assessment (NSA)

Normative and Psychometric Statistics
DEVELOPING N=31 α=0.913 12Countries
Abstract

Nyctophobia Severity Assessment (NSA) normative dataset currently contains 31 participant records collected between Jun 28, 2026 and Sep 20, 2026 .

This psychometric dataset currently includes 31 anonymous participant responses collected through voluntary participation. The observed mean score was 54.61 with a standard deviation of 16.07, indicating moderate score variability within the sampled population. Internal consistency reliability analysis demonstrated excellent reliability (Cronbach alpha = 0.913). Observed skewness (-0.45) and kurtosis (-0.33) were examined as indicators of distribution quality. The score distribution appeared reasonably balanced and did not suggest substantial departures from normality.

31
Participants
12
Countries
24
Scale Items
0.913
Reliability
Table 1
Dataset Overview
Assessment Nyctophobia Severity Assessment (NSA)
Research Status Developing Dataset
Dataset Maturity 45 /100 — DEVELOPING
Participants 31
Countries Represented 12
Items 24
Dimensions 7
Data Collection Period Jun 28, 2026 – Sep 20, 2026
Reliability α = 0.913
Note. The current Nyctophobia Severity Assessment (NSA) dataset contains 31 participant records collected from 12 countries. Dataset maturity reflects sample size, geographic diversity, and internal consistency reliability.
Table 2
Descriptive Statistics
Statistic Value
Mean Score 54.61%
Median Score 56
Standard Deviation 16.07
Variance 258.18
Standard Error 2.89
95% CI Lower 48.96
95% CI Upper 60.27
Minimum Score 21%
Maximum Score 84%
Observed Range 63
Note. M = 54.61, SD = 16.07, Median = 56. The 95% confidence interval ranged from 48.96 to 60.27.
Table 3
Sample Characteristics
Variable Summary
Participants N = 31
Countries 12
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 12 countries. The largest contribution originated from US (32.3% of available geographic records).
Table 4
Percentile Norms
Percentile Score Interpretation
10th 34% Very Low
25th 40% Below Average
50th 56% Average
75th 64% Above Average
90th 74% Elevated
Note. Percentile values provide preliminary normative benchmarks derived from the current Nyctophobia Severity Assessment (NSA) sample.
Figure 2
Score Distribution
Note. Observed scores ranged from 21% to 84% (M = 54.61, SD = 16.07). Distribution characteristics included skewness (-0.45) and kurtosis (-0.33). Distribution indices suggested no substantial departures from normality.
Table 5
Reliability Analysis
Metric Value
Cronbach Alpha 0.913
Reliability Classification Excellent
Participants 31
Items 24
Standard Error 2.89
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
Emotional Reactions 73.52% 16.89 31
Physical Reactions 72.17% 18.87 30
Fear Cognitions 69.52% 19.18 31
Darkness Triggers 56.71% 22.37 31
Avoidance Behavior 38.33% 22.49 30
Safety Behaviors 37.93% 21.44 30
Functional Impact 35.1% 16.06 30
Note. Dimension statistics summarize normative performance across the major constructs measured by Nyctophobia Severity Assessment (NSA).
Figure 5
Dimension Profile
Note. The highest observed dimension was Emotional Reactions (73.5%), whereas the lowest observed dimension was Functional Impact (35.1%). The observed difference between dimensions was 38.4 percentage points. Substantial variation was observed between dimensions.
Table 8
Dataset Growth Summary
Metric Value
Current Participants 31
Countries 12
Collection Start Jun 28, 2026
Collection End Sep 20, 2026
Months Recorded 4
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

Nyctophobia Severity Assessment (NSA). Research Dataset. Retrieved from https://drdeenz.com/nyctophobia-test/statistics/

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