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Inventory of Complicated Grief (ICG) Research Statistics

Assessment Information
  • Sample Adequacy: Developing dataset with emerging normative stability.
  • Research Status: DEVELOPING DATASET
  • Items: 19
  • Dimensions: 6
  • Dataset Maturity: The current dataset achieved a maturity score of 30/100 and is classified as PRELIMINARY.

Table 1
Normative Dataset Overview
Descriptive characteristics of the current normative sample.
Participants 46
Countries Represented 3
Dataset Maturity 30/100 — PreliminaryDataset
Research Status DEVELOPING NORMATIVE DATASET
Sample Adequacy Developing dataset with emerging normative stability.
Data Collection Period May 25, 2026 – Jul 6, 2026
The current normative dataset consists of 46 participants collected from 3 countries.
Table 2
Score Statistics
Measures of central tendency and variability.
Mean Score 65.22%
Median Score 71
Standard Deviation 9.15
Variance 83.73
Standard Error (SEM) 1.35
Reliability (α) 0.809
Items 19
Dimensions 6
The sample demonstrated a mean score of 65.22% (Mdn = 71, SD = 9.15).
Table 3
Distribution Characteristics
Distribution shape and score dispersion indicators.
Observed Score Range 33
Maximum Observed Score 87%
Minimum Observed Score 54%
95% Confidence Interval 62.57– 67.86
Skewness -0.12
Kurtosis -1.03
Observed skewness (-0.12) and kurtosis (-1.03) provide indicators of distribution quality and normality.
Global Participation Chart Participants IN 44 #1 NL 1 #2 CA 1 #3
Global Participation Interpretation

The current dataset includes responses from 3countries . The largest contribution currently comes from IN which represents approximately 95.7% of all participants. International participation enhances sample diversity and improves the generalizability of normative findings across geographic regions.

Normative Percentile Distribution

Population Median 10th Percentile 54 Population Median 25th Percentile 54 Population Median 50th Percentile 71 Population Median 75th Percentile 71 Population Median 90th Percentile 71
Normative Interpretation

The current normative dataset indicates that approximately 10% of participants scored below 54%, while 90% scored above this level. The median score was 71%, meaning that half of participants scored below this value and half scored above it. Scores of 71% or greater were achieved by approximately the highest 25% of participants, whereas scores of 71% 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

50-59 17 60-69 1 70-79 26 80-89 2
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 demonstrated a skewness of -0.12 and a kurtosis of -1.03.

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

Reliability Analysis

0.809 Poor Acceptable Good Excellent

GOOD RELIABILITY

The assessment demonstrated good internal consistency reliability (Cronbach's α = 0.809), 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: 46
Minimum Recommended: 100

Dimension Norms

Dimension Profile Mean SD 50% Emotional Pain and Longing 76.6% 6.1 Difficulty Accepting the Loss 71.7% 8 Social and Emotional Disconnection 64.6% 7.1 Traumatic Grief Reactions 61% 17 Grief-Related Preoccupation 52.2% 8.6 Separation Distress 33.7% 28
Dimension Interpretation

The highest scoring dimension in the current sample was Emotional Pain and Longing (76.6%). The lowest scoring dimension was Separation Distress (33.7%). 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.

Research Interpretation

This psychometric dataset currently includes 46 anonymous participant responses collected through voluntary participation. The observed mean score was 65.22 with a standard deviation of 9.15, indicating moderate score variability within the sampled population. Internal consistency reliability analysis demonstrated good reliability (Cronbach alpha = 0.809). Observed skewness (-0.12) and kurtosis (-1.03) 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. Trait Profiler continuously monitors response quality, distribution stability, and internal consistency to support ethical psychometric reporting.

Dataset Export

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Research Citation

Inventory of Complicated Grief (ICG). Trait Profiler Interactive Research Dataset. Retrieved from https://traitprofiler.com/icg/statistics/

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