B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
12
12 -- net promoter score change for Automotive company in Malaysia (Vase.ai client) (2026)
Process improvements addressing three post-purchase friction points increased Net Promoter Score by 12 points for a leading used car platform in Southeast Asia based on a 500-respondent study in Malaysia.
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
12
Unit
Score
Data Vintage
2026
Entity
Sample Size
500
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
55
Freshness
95
Source
Vase.ai
Primary
Tier A
https://www.vase.ai/resources/research-playbook/survey-sample-size-guide ↗
Source Article
Survey Sample Size: How Many Respondents Do You Actually Need?
Determining the right sample size is one of the most common questions in market research. The answer depends on what you’re trying to achieve: 100-200 respondents work for directional insights and pitch validation, while 300-400+ respondents are needed for confident business decisions. This guide br…
Original Research
Vase.ai
· Original study ↗
Methodology
Vendor case study: 500 respondents across Malaysia, margin of error ±4.4%; NPS gain followed process improvements addressing three post-purchase friction points identified in the study.
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Automotive company in Malaysia (Vase.ai client): 12 net promoter score change. Source: Vase.ai (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/automotive-customer-nps-increase
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<blockquote cite="https://lighthousedata.io/data/automotive-customer-nps-increase" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>12</strong> -- net promoter score change for Automotive company in Malaysia (Vase.ai client)<br><small>Source: Vase.ai (2026) · <a href="https://lighthousedata.io/data/automotive-customer-nps-increase" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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