Hey, 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 Buller Gorge Swingbridge.
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.
Buller Gorge Swingbridge
Valid Reviews
132 Valid Reviews
The Buller Gorge Swingbridge experience has a total of 134 reviews. There are 132 valid reviews that are included when calculating the ranking score and 2 invalid reviews 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 132 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 16 |
|
12% |
| 9/10 | 11 |
|
8% |
| 8/10 | 29 |
|
22% |
| 7/10 | 19 |
|
14% |
| 6/10 | 14 |
|
11% |
| 5/10 | 12 |
|
9% |
| 4/10 | 10 |
|
8% |
| 3/10 | 10 |
|
8% |
| 2/10 | 5 |
|
4% |
| 1/10 | 6 |
|
5% |
64.70% Average
The raw data average (mean) for all the Buller Gorge Swingbridge valid reviews is 64.70% and is based on 132 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
118 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 132 valid reviews, the experience has 118 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 118 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 14 |
|
12% |
| 9/10 | 10 |
|
8% |
| 8/10 | 27 |
|
23% |
| 7/10 | 18 |
|
15% |
| 6/10 | 12 |
|
10% |
| 5/10 | 12 |
|
10% |
| 4/10 | 9 |
|
8% |
| 3/10 | 7 |
|
6% |
| 2/10 | 4 |
|
3% |
| 1/10 | 5 |
|
4% |
65.59% Average
The raw data average (mean) for all the Buller Gorge Swingbridge face-to-face reviews is 65.59% and is based on 118 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
66.19%
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 |
|---|---|---|---|
| Caroline Skinnider | 8/10 | 92 days | 100% |
| Christina | 3/10 | 516 days | 47% |
| Deb Z | 2/10 | 1553 days | 4% |
| Solvejg Bjerg | 9/10 | 3389 days | 2% |
| Jaroslav Kacmar | 7/10 | 3392 days | 1% |
| Fabian Probst | 7/10 | 3412 days | 1% |
| Jonas Neumann | 6/10 | 3422 days | 1% |
| Mark | 8/10 | 3429 days | 1% |
| Alicia Speisekorn-Gil | 10/10 | 3474 days | 1% |
| Marc Perales | 3/10 | 3476 days | 1% |
| Laura Leoekloek | 8/10 | 3501 days | 1% |
| Stephan Ophelders | 6/10 | 3743 days | 1% |
| Ross Clark | 9/10 | 3749 days | 1% |
| Anna Jungclaus | 4/10 | 3752 days | 0% |
| Paul and Astrid | 8/10 | 3756 days | 1% |
| Oliver Schatz | 6/10 | 3764 days | 1% |
| Nadja | 2/10 | 3764 days | 0% |
| Wil Goes | 4/10 | 3769 days | 0% |
| D Davey | 9/10 | 3771 days | 1% |
| Sylvain Blanchet | 10/10 | 3777 days | 1% |
| Ral Pritchard | 5/10 | 3788 days | 0% |
| Sue Strebe | 6/10 | 4128 days | 0% |
| Helen Parsons | 6/10 | 4134 days | 0% |
| Ann Wilson | 7/10 | 4461 days | 1% |
| Reto | 4/10 | 4489 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4491 days | 1% |
| Marius Hoffmann | 6/10 | 4492 days | 0% |
| Lena Jensen | 3/10 | 4510 days | 0% |
| Jesper Andersen | 4/10 | 4510 days | 0% |
| David Embling | 5/10 | 4511 days | 0% |
| Angela Neville | 8/10 | 4511 days | 1% |
| Derek Knight | 8/10 | 4517 days | 1% |
| Jacqui Knight | 8/10 | 4517 days | 1% |
| Elizabeth | 7/10 | 4536 days | 1% |
| Roy Driehuis | 7/10 | 4536 days | 1% |
| AusCampa | 3/10 | 4779 days | 0% |
| Andrew Grimes | 7/10 | 4835 days | 1% |
| Lynda Quartay | 9/10 | 4835 days | 1% |
| Julian Roots | 8/10 | 4840 days | 1% |
| Lorna and Seb | 6/10 | 4843 days | 0% |
| Mary Neustroski | 5/10 | 4854 days | 0% |
| Sam Bensemann | 10/10 | 4899 days | 1% |
| Mike Edwards | 8/10 | 4915 days | 1% |
| Annie | 5/10 | 4923 days | 0% |
| Dio | 6/10 | 4932 days | 0% |
| Michel Vourbraak | 8/10 | 4946 days | 1% |
| Evelyn Mackie | 10/10 | 5198 days | 1% |
| Matthias Angela | 6/10 | 5199 days | 0% |
| Jeltje | 5/10 | 5214 days | 0% |
| Baas | 7/10 | 5214 days | 1% |
| Josef | 1/10 | 5215 days | 0% |
| Sylvia & Garrit | 1/10 | 5219 days | 0% |
| Marco Scheiber | 8/10 | 5228 days | 1% |
| Volker Neumeyer | 9/10 | 5229 days | 1% |
| Anna | 2/10 | 5232 days | 0% |
| Duncan & Ellen | 5/10 | 5250 days | 0% |
| KandJ | 1/10 | 5265 days | 0% |
| Josh | 7/10 | 5308 days | 1% |
| Ray Coombe | 8/10 | 5308 days | 1% |
| Mr & Mrs Palmer | 7/10 | 5557 days | 1% |
| John Stokes | 8/10 | 5559 days | 1% |
| Julia | 2/10 | 5561 days | 0% |
| Juerg & Denise Zuesli | 3/10 | 5564 days | 0% |
| B Kleven | 7/10 | 5565 days | 1% |
| Anita Tonks | 4/10 | 5570 days | 0% |
| Carolin Ranner | 5/10 | 5572 days | 0% |
| Kasten | 4/10 | 5573 days | 0% |
| omlo | 3/10 | 5585 days | 0% |
| David Heads | 8/10 | 5586 days | 1% |
| Irene and Thib Schneider | 8/10 | 5587 days | 1% |
| Bahner | 10/10 | 5587 days | 1% |
| Teum and Orselien | 5/10 | 5587 days | 0% |
| Daniel Bogdanowitsch | 10/10 | 5590 days | 1% |
| Julia | 7/10 | 5591 days | 1% |
| Bas Geerts | 6/10 | 5592 days | 0% |
| Barbara | 7/10 | 5592 days | 1% |
| JohnHaestad | 7/10 | 5599 days | 1% |
| Grant | 8/10 | 5857 days | 1% |
| Quin | 8/10 | 5905 days | 1% |
| Kaddi & Grego | 1/10 | 5937 days | 0% |
| Thomas & Jucki | 8/10 | 5939 days | 1% |
| Rolf X | 4/10 | 5946 days | 0% |
| Gary Ebrig | 7/10 | 5949 days | 1% |
| J Kempeneers | 4/10 | 5950 days | 0% |
| Loleit | 1/10 | 5957 days | 0% |
| vanijzendoor | 8/10 | 5959 days | 1% |
| Sinjc Grude | 3/10 | 5961 days | 0% |
| Jeremy & Sarah Rind | 8/10 | 5963 days | 1% |
| Hugli | 9/10 | 5969 days | 1% |
| W David R Thomas | 5/10 | 5969 days | 0% |
| Beute Jacob | 7/10 | 5977 days | 1% |
| J P Paulvast | 8/10 | 5978 days | 1% |
| Beute Hjel | 8/10 | 5980 days | 1% |
| middendorp | 8/10 | 6010 days | 1% |
| Linda Coats | 10/10 | 6011 days | 1% |
| johnma | 10/10 | 6015 days | 1% |
| sels | 3/10 | 6026 days | 0% |
| Anna | 6/10 | 6056 days | 0% |
| alanvn | 3/10 | 6139 days | 0% |
| richards1 | 2/10 | 6151 days | 0% |
| KarinS | 5/10 | 6263 days | 0% |
| DirkGermany | 10/10 | 6265 days | 1% |
| KatrinS | 1/10 | 6282 days | 0% |
| Lucas | 7/10 | 6286 days | 1% |
| Anna Hansson | 10/10 | 6287 days | 1% |
| Anna Hansson | 10/10 | 6287 days | 1% |
| Sara Hansson | 9/10 | 6287 days | 1% |
| BevanLisa | 7/10 | 6287 days | 1% |
| Hans | 6/10 | 6287 days | 0% |
| OdiliaF | 10/10 | 6289 days | 1% |
| Mary | 9/10 | 6294 days | 1% |
| JetteG | 5/10 | 6304 days | 0% |
| VacherD | 8/10 | 6305 days | 1% |
| Adi | 10/10 | 6318 days | 1% |
| Philippa | 9/10 | 6318 days | 1% |
| De Vries | 7/10 | 6338 days | 1% |
| Debbie Mossman | 6/10 | 6344 days | 0% |
| nsmith | 9/10 | 6422 days | 1% |
| Gray | 10/10 | 6505 days | 1% |
| fgregory | 10/10 | 6532 days | 1% |
| Stewart | 6/10 | 6653 days | 0% |
| Sara Rütten | 4/10 | 6672 days | 0% |
| Sabine Feiner | 10/10 | 6675 days | 1% |
| Roger & Margaret | 8/10 | 6684 days | 1% |
| Gill O'Connor | 8/10 | 6686 days | 1% |
| Kevin | 9/10 | 6755 days | 1% |
| Floren | 8/10 | 6759 days | 1% |
| Rene Schotvanger | 4/10 | 6872 days | 0% |
| ranker_41 | 5/10 | 6872 days | 0% |
| Kate | 3/10 | 7028 days | 0% |
| Bernhard | 8/10 | 7044 days | 1% |
| Walburg | 8/10 | 7047 days | 1% |
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 Buller Gorge Swingbridge experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-1.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 106 days. However the Buller Gorge Swingbridge 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 Buller Gorge Swingbridge experience has been adjusted for 86 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 83 | -1.02% |
| 84 | -1.03% |
| 85 | -1.04% |
| 86 | -1.05% |
| 87 | -1.07% |
| 88 | -1.08% |
| 89 | -1.09% |
| … | … |
Balancing Adjustment
10.11% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
75%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.