Ranking Score Explained
Hi there, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for Waitomo Adventures Ltd.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
Waitomo Adventures Ltd
Valid Reviews
93 Valid Reviews
The Waitomo Adventures Ltd experience has a total of 94 reviews. There are 93 valid reviews that are included when calculating the ranking score and 1 invalid review that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Below is the distribution of ratings for the 93 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 32 |
|
34% |
| 9/10 | 22 |
|
24% |
| 8/10 | 23 |
|
25% |
| 7/10 | 8 |
|
9% |
| 6/10 | 5 |
|
5% |
| 5/10 | 2 |
|
2% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.13% Average
The raw data average (mean) for all the Waitomo Adventures Ltd valid reviews is 86.13% and is based on 93 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
77 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 93 valid reviews, the experience has 77 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 77 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 23 |
|
30% |
| 9/10 | 20 |
|
26% |
| 8/10 | 20 |
|
26% |
| 7/10 | 8 |
|
10% |
| 6/10 | 3 |
|
4% |
| 5/10 | 2 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
85.32% Average
The raw data average (mean) for all the Waitomo Adventures Ltd face-to-face reviews is 85.32% and is based on 77 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.96%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Dennis | 10/10 | 1662 days | 100% |
| Thomas Klinting | 10/10 | 1716 days | 97% |
| Franz Mesey | 9/10 | 1730 days | 97% |
| Judit Van lanen | 10/10 | 1749 days | 96% |
| Jack Robinson | 8/10 | 1787 days | 89% |
| Mikulas and Dominika | 8/10 | 1809 days | 88% |
| Elizabeth Braidotti | 10/10 | 1859 days | 90% |
| Craig Forsyth | 10/10 | 1975 days | 84% |
| Lea Behnem | 10/10 | 2049 days | 80% |
| Nicolas Justin | 7/10 | 2393 days | 57% |
| Stephanie Piou | 8/10 | 2393 days | 59% |
| Alex | 9/10 | 2421 days | 61% |
| Devan Sheppard | 10/10 | 2490 days | 57% |
| Nina Coopmans | 7/10 | 3102 days | 23% |
| Katherine | 10/10 | 3126 days | 25% |
| Lieven De Vlaminck | 9/10 | 3132 days | 24% |
| Andy | 10/10 | 3223 days | 20% |
| Ron | 9/10 | 3227 days | 19% |
| Bart Slingerland | 9/10 | 3482 days | 6% |
| Birds Tubbs | 10/10 | 3483 days | 6% |
| Malena | 10/10 | 3498 days | 6% |
| Schael | 10/10 | 3502 days | 5% |
| Ryan Pynappels | 9/10 | 3509 days | 5% |
| Tobias Forst | 8/10 | 3590 days | 1% |
| Sarah and Soren | 9/10 | 3595 days | 1% |
| Alberto Redner | 10/10 | 3605 days | 0% |
| Dozza | 10/10 | 3650 days | 24% |
| Sarah James | 10/10 | 3832 days | 24% |
| Nick Taylor | 10/10 | 3832 days | 24% |
| Laurent Pouvreau | 10/10 | 3836 days | 24% |
| Paap | 8/10 | 3869 days | 23% |
| Wouter Jansen | 8/10 | 3869 days | 23% |
| Luise Jaeger | 3/10 | 3882 days | 18% |
| Steff | 9/10 | 3884 days | 24% |
| wannaraft | 10/10 | 3892 days | 24% |
| elpo | 6/10 | 4137 days | 20% |
| kempt | 8/10 | 4168 days | 23% |
| Andy | 8/10 | 4219 days | 23% |
| Sam Bishop | 10/10 | 4229 days | 24% |
| Kay Beaumont | 10/10 | 4231 days | 24% |
| Johan | 10/10 | 4239 days | 24% |
| Jakob Pedersen | 7/10 | 4239 days | 22% |
| Jens van Evp | 9/10 | 4253 days | 24% |
| Max Van der Zalm | 8/10 | 4253 days | 23% |
| Carolina Gonzalez | 8/10 | 4255 days | 23% |
| Kasper | 9/10 | 4255 days | 24% |
| Chance McGuire | 10/10 | 4257 days | 24% |
| katesc | 9/10 | 4308 days | 24% |
| rosalindm | 9/10 | 4313 days | 24% |
| jennyb | 9/10 | 4317 days | 24% |
| Thomas Willi | 10/10 | 4329 days | 24% |
| Jess Pasos | 10/10 | 4338 days | 24% |
| Nikki Turner | 8/10 | 4484 days | 23% |
| Sejna | 8/10 | 4505 days | 23% |
| michellew | 10/10 | 4511 days | 24% |
| erikholland | 8/10 | 4563 days | 23% |
| mariea | 9/10 | 4574 days | 24% |
| Krapels | 9/10 | 4587 days | 24% |
| Halley | 5/10 | 4593 days | 19% |
| Katie | 10/10 | 4611 days | 24% |
| Ian S | 8/10 | 4612 days | 23% |
| Debbie | 7/10 | 4613 days | 22% |
| Daniel | 8/10 | 4622 days | 23% |
| Kristy825 | 10/10 | 4625 days | 24% |
| Limor | 6/10 | 4634 days | 20% |
| Prentner | 6/10 | 4643 days | 20% |
| Sonja | 9/10 | 4667 days | 24% |
| Bronagh Mcartan | 9/10 | 4811 days | 24% |
| Tim | 10/10 | 4835 days | 24% |
| Brent Scanlan | 10/10 | 4905 days | 24% |
| Meike Biel | 10/10 | 4913 days | 24% |
| Hendrik | 6/10 | 4955 days | 20% |
| Sabrina | 8/10 | 4955 days | 23% |
| Peter Aston | 5/10 | 4955 days | 19% |
| helga | 9/10 | 4956 days | 24% |
| Janne | 8/10 | 4966 days | 23% |
| Melissa Steedman | 9/10 | 5002 days | 24% |
| gemma1 | 6/10 | 5007 days | 20% |
| Francesco | 8/10 | 5037 days | 23% |
| Jim&Rachel | 9/10 | 5120 days | 24% |
| MarkReid | 10/10 | 5253 days | 24% |
| HalRoberts | 8/10 | 5275 days | 23% |
| David | 9/10 | 5284 days | 24% |
| Justin | 8/10 | 5284 days | 23% |
| Alex | 8/10 | 5291 days | 23% |
| Hilary | 7/10 | 5300 days | 22% |
| Roran | 7/10 | 5310 days | 22% |
| Nina | 10/10 | 5335 days | 24% |
| Inga | 9/10 | 5335 days | 24% |
| Italy | 8/10 | 5335 days | 23% |
| Nina | 8/10 | 5335 days | 23% |
| Helen | 7/10 | 5335 days | 22% |
| JuanPablo | 7/10 | 5352 days | 22% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Waitomo Adventures Ltd experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.21% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 69 days. However the Waitomo Adventures Ltd experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Waitomo Adventures Ltd experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.16% |
| 198 | -3.17% |
| 199 | -3.19% |
| 200 | -3.21% |
| 201 | -3.22% |
| 202 | -3.24% |
| 203 | -3.26% |
| … | … |
Final Ranking Score
85%
The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.