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
88.45%
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 | 1418 days | 100% |
| Thomas Klinting | 10/10 | 1472 days | 98% |
| Franz Mesey | 9/10 | 1487 days | 97% |
| Judit Van lanen | 10/10 | 1505 days | 96% |
| Jack Robinson | 8/10 | 1543 days | 90% |
| Mikulas and Dominika | 8/10 | 1565 days | 89% |
| Elizabeth Braidotti | 10/10 | 1615 days | 91% |
| Craig Forsyth | 10/10 | 1732 days | 86% |
| Lea Behnem | 10/10 | 1805 days | 83% |
| Nicolas Justin | 7/10 | 2149 days | 61% |
| Stephanie Piou | 8/10 | 2149 days | 64% |
| Alex | 9/10 | 2177 days | 66% |
| Devan Sheppard | 10/10 | 2246 days | 63% |
| Nina Coopmans | 7/10 | 2858 days | 32% |
| Katherine | 10/10 | 2882 days | 34% |
| Lieven De Vlaminck | 9/10 | 2888 days | 34% |
| Andy | 10/10 | 2979 days | 30% |
| Ron | 9/10 | 2983 days | 30% |
| Bart Slingerland | 9/10 | 3238 days | 18% |
| Birds Tubbs | 10/10 | 3239 days | 18% |
| Malena | 10/10 | 3254 days | 18% |
| Schael | 10/10 | 3258 days | 17% |
| Ryan Pynappels | 9/10 | 3265 days | 17% |
| Tobias Forst | 8/10 | 3346 days | 13% |
| Sarah and Soren | 9/10 | 3351 days | 13% |
| Alberto Redner | 10/10 | 3361 days | 13% |
| Dozza | 10/10 | 3406 days | 11% |
| Sarah James | 10/10 | 3588 days | 3% |
| Nick Taylor | 10/10 | 3588 days | 3% |
| Laurent Pouvreau | 10/10 | 3592 days | 3% |
| Paap | 8/10 | 3625 days | 1% |
| Wouter Jansen | 8/10 | 3625 days | 1% |
| Luise Jaeger | 3/10 | 3638 days | 0% |
| Steff | 9/10 | 3640 days | 0% |
| wannaraft | 10/10 | 3648 days | 0% |
| elpo | 6/10 | 3893 days | 19% |
| kempt | 8/10 | 3924 days | 22% |
| Andy | 8/10 | 3975 days | 22% |
| Sam Bishop | 10/10 | 3985 days | 23% |
| Kay Beaumont | 10/10 | 3987 days | 23% |
| Johan | 10/10 | 3995 days | 23% |
| Jakob Pedersen | 7/10 | 3995 days | 21% |
| Jens van Evp | 9/10 | 4009 days | 23% |
| Max Van der Zalm | 8/10 | 4009 days | 22% |
| Carolina Gonzalez | 8/10 | 4011 days | 22% |
| Kasper | 9/10 | 4011 days | 23% |
| Chance McGuire | 10/10 | 4013 days | 23% |
| katesc | 9/10 | 4064 days | 23% |
| rosalindm | 9/10 | 4069 days | 23% |
| jennyb | 9/10 | 4073 days | 23% |
| Thomas Willi | 10/10 | 4085 days | 23% |
| Jess Pasos | 10/10 | 4094 days | 23% |
| Nikki Turner | 8/10 | 4240 days | 22% |
| Sejna | 8/10 | 4261 days | 22% |
| michellew | 10/10 | 4267 days | 23% |
| erikholland | 8/10 | 4320 days | 22% |
| mariea | 9/10 | 4331 days | 23% |
| Krapels | 9/10 | 4344 days | 23% |
| Halley | 5/10 | 4350 days | 18% |
| Katie | 10/10 | 4368 days | 23% |
| Ian S | 8/10 | 4369 days | 22% |
| Debbie | 7/10 | 4370 days | 21% |
| Daniel | 8/10 | 4378 days | 22% |
| Kristy825 | 10/10 | 4382 days | 23% |
| Limor | 6/10 | 4391 days | 19% |
| Prentner | 6/10 | 4400 days | 19% |
| Sonja | 9/10 | 4424 days | 23% |
| Bronagh Mcartan | 9/10 | 4568 days | 23% |
| Tim | 10/10 | 4592 days | 23% |
| Brent Scanlan | 10/10 | 4661 days | 23% |
| Meike Biel | 10/10 | 4669 days | 23% |
| Hendrik | 6/10 | 4711 days | 19% |
| Sabrina | 8/10 | 4711 days | 22% |
| Peter Aston | 5/10 | 4711 days | 18% |
| helga | 9/10 | 4713 days | 23% |
| Janne | 8/10 | 4723 days | 22% |
| Melissa Steedman | 9/10 | 4758 days | 23% |
| gemma1 | 6/10 | 4763 days | 19% |
| Francesco | 8/10 | 4793 days | 22% |
| Jim&Rachel | 9/10 | 4876 days | 23% |
| MarkReid | 10/10 | 5009 days | 23% |
| HalRoberts | 8/10 | 5031 days | 22% |
| David | 9/10 | 5040 days | 23% |
| Justin | 8/10 | 5040 days | 22% |
| Alex | 8/10 | 5047 days | 22% |
| Hilary | 7/10 | 5056 days | 21% |
| Roran | 7/10 | 5066 days | 21% |
| Nina | 10/10 | 5091 days | 23% |
| Inga | 9/10 | 5091 days | 23% |
| Italy | 8/10 | 5091 days | 22% |
| Nina | 8/10 | 5091 days | 22% |
| Helen | 7/10 | 5091 days | 21% |
| JuanPablo | 7/10 | 5108 days | 21% |
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
-4.13% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 48 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 | -4.07% |
| 198 | -4.09% |
| 199 | -4.11% |
| 200 | -4.13% |
| 201 | -4.15% |
| 202 | -4.17% |
| 203 | -4.19% |
| … | … |
Final Ranking Score
84%
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.