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Mach IV Scale (Machiavellianism Test) Research Statistics

Assessment Information
  • Sample Adequacy: Developing dataset with emerging normative stability.
  • Research Status: DEVELOPING DATASET
  • Items: 20
  • Dimensions: 3
  • Dataset Maturity: The current dataset achieved a maturity score of 60/100 and is classified as DEVELOPING.

Table 1
Normative Dataset Overview
Descriptive characteristics of the current normative sample.
Participants 98
Countries Represented 22
Dataset Maturity 60/100 — DevelopingDataset
Research Status DEVELOPING NORMATIVE DATASET
Sample Adequacy Developing dataset with emerging normative stability.
Data Collection Period May 21, 2026 – Sep 9, 2026
The current normative dataset consists of 98 participants collected from 22 countries.
Table 2
Score Statistics
Measures of central tendency and variability.
Mean Score 43.57%
Median Score 48
Standard Deviation 13.98
Variance 195.57
Standard Error (SEM) 1.41
Reliability (α) 0.927
Items 20
Dimensions 3
The sample demonstrated a mean score of 43.57% (Mdn = 48, SD = 13.98).
Table 3
Distribution Characteristics
Distribution shape and score dispersion indicators.
Observed Score Range 74
Maximum Observed Score 86%
Minimum Observed Score 12%
95% Confidence Interval 40.8– 46.34
Skewness -0.43
Kurtosis 0.1
Observed skewness (-0.43) and kurtosis (0.1) provide indicators of distribution quality and normality.
Global Participation Chart Participants IN 47 #1 CN 13 #2 US 10 #3 AU 4 #4 UA 3 #5 GR 2 #6 ES 2 #7 IL 2 #8 ZA 2 #9 BA 1 #10 MY 1 #11 SE 1 #12 JO 1 #13 XK 1 #14 NO 1 #15 ID 1 #16 RO 1 #17 QA 1 #18 LB 1 #19 GB 1 #20 SG 1 #21 BR 1 #22
Global Participation Interpretation

The current dataset includes responses from 22countries . The largest contribution currently comes from IN which represents approximately 48% 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 21 Population Median 25th Percentile 35 Population Median 50th Percentile 48 Population Median 75th Percentile 55 Population Median 90th Percentile 55
Normative Interpretation

The current normative dataset indicates that approximately 10% of participants scored below 21%, while 90% scored above this level. The median score was 48%, meaning that half of participants scored below this value and half scored above it. Scores of 55% or greater were achieved by approximately the highest 25% of participants, whereas scores of 55% 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

10-19 7 20-29 12 30-39 13 40-49 23 50-59 39 60-69 2 70-79 1 80-89 1
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 -0.43 and a kurtosis of 0.1.

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

Reliability Analysis

0.927 Poor Acceptable Good Excellent

EXCELLENT RELIABILITY

The assessment demonstrated excellent internal consistency reliability (Cronbach's α = 0.927), 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: 98
Minimum Recommended: 100

Dimension Norms

Dimension Profile Mean SD 50% Pragmatic Morality 51.9% 15.9 Cynical Worldview 42.2% 15.6 Manipulative Strategy 36.6% 16.8
Dimension Interpretation

The highest scoring dimension in the current sample was Pragmatic Morality (51.9%). The lowest scoring dimension was Manipulative Strategy (36.6%). 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 98 anonymous participant responses collected through voluntary participation. The observed mean score was 43.57 with a standard deviation of 13.98, indicating moderate score variability within the sampled population. Internal consistency reliability analysis demonstrated excellent reliability (Cronbach alpha = 0.927). Observed skewness (-0.43) and kurtosis (0.1) 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

Mach IV Scale (Machiavellianism Test). Trait Profiler Interactive Research Dataset. Retrieved from https://traitprofiler.com/mach-iv-machiavellianism-test/statistics/

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