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
66.07%
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 | 71 days | 100% |
| Christina | 3/10 | 495 days | 48% |
| Deb Z | 2/10 | 1532 days | 4% |
| Solvejg Bjerg | 9/10 | 3368 days | 2% |
| Jaroslav Kacmar | 7/10 | 3371 days | 1% |
| Fabian Probst | 7/10 | 3391 days | 1% |
| Jonas Neumann | 6/10 | 3401 days | 1% |
| Mark | 8/10 | 3408 days | 1% |
| Alicia Speisekorn-Gil | 10/10 | 3453 days | 1% |
| Marc Perales | 3/10 | 3455 days | 1% |
| Laura Leoekloek | 8/10 | 3480 days | 1% |
| Stephan Ophelders | 6/10 | 3722 days | 1% |
| Ross Clark | 9/10 | 3728 days | 1% |
| Anna Jungclaus | 4/10 | 3731 days | 0% |
| Paul and Astrid | 8/10 | 3735 days | 1% |
| Oliver Schatz | 6/10 | 3743 days | 1% |
| Nadja | 2/10 | 3743 days | 0% |
| Wil Goes | 4/10 | 3748 days | 0% |
| D Davey | 9/10 | 3750 days | 1% |
| Sylvain Blanchet | 10/10 | 3756 days | 1% |
| Ral Pritchard | 5/10 | 3767 days | 1% |
| Sue Strebe | 6/10 | 4107 days | 0% |
| Helen Parsons | 6/10 | 4113 days | 0% |
| Ann Wilson | 7/10 | 4440 days | 1% |
| Reto | 4/10 | 4468 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4470 days | 1% |
| Marius Hoffmann | 6/10 | 4471 days | 0% |
| Lena Jensen | 3/10 | 4489 days | 0% |
| Jesper Andersen | 4/10 | 4489 days | 0% |
| David Embling | 5/10 | 4490 days | 0% |
| Angela Neville | 8/10 | 4490 days | 1% |
| Derek Knight | 8/10 | 4496 days | 1% |
| Jacqui Knight | 8/10 | 4496 days | 1% |
| Elizabeth | 7/10 | 4515 days | 1% |
| Roy Driehuis | 7/10 | 4515 days | 1% |
| AusCampa | 3/10 | 4758 days | 0% |
| Andrew Grimes | 7/10 | 4814 days | 1% |
| Lynda Quartay | 9/10 | 4814 days | 1% |
| Julian Roots | 8/10 | 4819 days | 1% |
| Lorna and Seb | 6/10 | 4822 days | 0% |
| Mary Neustroski | 5/10 | 4833 days | 0% |
| Sam Bensemann | 10/10 | 4878 days | 1% |
| Mike Edwards | 8/10 | 4894 days | 1% |
| Annie | 5/10 | 4902 days | 0% |
| Dio | 6/10 | 4911 days | 0% |
| Michel Vourbraak | 8/10 | 4925 days | 1% |
| Evelyn Mackie | 10/10 | 5177 days | 1% |
| Matthias Angela | 6/10 | 5178 days | 0% |
| Jeltje | 5/10 | 5193 days | 0% |
| Baas | 7/10 | 5193 days | 1% |
| Josef | 1/10 | 5194 days | 0% |
| Sylvia & Garrit | 1/10 | 5198 days | 0% |
| Marco Scheiber | 8/10 | 5207 days | 1% |
| Volker Neumeyer | 9/10 | 5208 days | 1% |
| Anna | 2/10 | 5211 days | 0% |
| Duncan & Ellen | 5/10 | 5229 days | 0% |
| KandJ | 1/10 | 5244 days | 0% |
| Josh | 7/10 | 5287 days | 1% |
| Ray Coombe | 8/10 | 5287 days | 1% |
| Mr & Mrs Palmer | 7/10 | 5536 days | 1% |
| John Stokes | 8/10 | 5538 days | 1% |
| Julia | 2/10 | 5540 days | 0% |
| Juerg & Denise Zuesli | 3/10 | 5543 days | 0% |
| B Kleven | 7/10 | 5544 days | 1% |
| Anita Tonks | 4/10 | 5549 days | 0% |
| Carolin Ranner | 5/10 | 5551 days | 0% |
| Kasten | 4/10 | 5552 days | 0% |
| omlo | 3/10 | 5564 days | 0% |
| David Heads | 8/10 | 5565 days | 1% |
| Irene and Thib Schneider | 8/10 | 5566 days | 1% |
| Bahner | 10/10 | 5566 days | 1% |
| Teum and Orselien | 5/10 | 5566 days | 0% |
| Daniel Bogdanowitsch | 10/10 | 5569 days | 1% |
| Julia | 7/10 | 5570 days | 1% |
| Bas Geerts | 6/10 | 5571 days | 0% |
| Barbara | 7/10 | 5571 days | 1% |
| JohnHaestad | 7/10 | 5578 days | 1% |
| Grant | 8/10 | 5836 days | 1% |
| Quin | 8/10 | 5884 days | 1% |
| Kaddi & Grego | 1/10 | 5916 days | 0% |
| Thomas & Jucki | 8/10 | 5918 days | 1% |
| Rolf X | 4/10 | 5925 days | 0% |
| Gary Ebrig | 7/10 | 5928 days | 1% |
| J Kempeneers | 4/10 | 5929 days | 0% |
| Loleit | 1/10 | 5936 days | 0% |
| vanijzendoor | 8/10 | 5938 days | 1% |
| Sinjc Grude | 3/10 | 5940 days | 0% |
| Jeremy & Sarah Rind | 8/10 | 5942 days | 1% |
| Hugli | 9/10 | 5948 days | 1% |
| W David R Thomas | 5/10 | 5948 days | 0% |
| Beute Jacob | 7/10 | 5956 days | 1% |
| J P Paulvast | 8/10 | 5957 days | 1% |
| Beute Hjel | 8/10 | 5959 days | 1% |
| middendorp | 8/10 | 5989 days | 1% |
| Linda Coats | 10/10 | 5990 days | 1% |
| johnma | 10/10 | 5994 days | 1% |
| sels | 3/10 | 6005 days | 0% |
| Anna | 6/10 | 6035 days | 0% |
| alanvn | 3/10 | 6118 days | 0% |
| richards1 | 2/10 | 6130 days | 0% |
| KarinS | 5/10 | 6242 days | 0% |
| DirkGermany | 10/10 | 6244 days | 1% |
| KatrinS | 1/10 | 6261 days | 0% |
| Lucas | 7/10 | 6265 days | 1% |
| Anna Hansson | 10/10 | 6266 days | 1% |
| Anna Hansson | 10/10 | 6266 days | 1% |
| Sara Hansson | 9/10 | 6266 days | 1% |
| BevanLisa | 7/10 | 6266 days | 1% |
| Hans | 6/10 | 6266 days | 0% |
| OdiliaF | 10/10 | 6268 days | 1% |
| Mary | 9/10 | 6273 days | 1% |
| JetteG | 5/10 | 6283 days | 0% |
| VacherD | 8/10 | 6284 days | 1% |
| Adi | 10/10 | 6297 days | 1% |
| Philippa | 9/10 | 6297 days | 1% |
| De Vries | 7/10 | 6317 days | 1% |
| Debbie Mossman | 6/10 | 6324 days | 0% |
| nsmith | 9/10 | 6401 days | 1% |
| Gray | 10/10 | 6484 days | 1% |
| fgregory | 10/10 | 6511 days | 1% |
| Stewart | 6/10 | 6632 days | 0% |
| Sara Rütten | 4/10 | 6651 days | 0% |
| Sabine Feiner | 10/10 | 6654 days | 1% |
| Roger & Margaret | 8/10 | 6663 days | 1% |
| Gill O'Connor | 8/10 | 6665 days | 1% |
| Kevin | 9/10 | 6734 days | 1% |
| Floren | 8/10 | 6738 days | 1% |
| Rene Schotvanger | 4/10 | 6851 days | 0% |
| ranker_41 | 5/10 | 6851 days | 0% |
| Kate | 3/10 | 7007 days | 0% |
| Bernhard | 8/10 | 7023 days | 1% |
| Walburg | 8/10 | 7026 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
-0.94% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 87 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 65 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 62 | -0.90% |
| 63 | -0.91% |
| 64 | -0.92% |
| 65 | -0.94% |
| 66 | -0.95% |
| 67 | -0.97% |
| 68 | -0.98% |
| … | … |
Balancing Adjustment
10.12% 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.