Kia ora, 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
66.65%
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 | 172 days | 100% |
| Christina | 3/10 | 596 days | 45% |
| Deb Z | 2/10 | 1633 days | 3% |
| Solvejg Bjerg | 9/10 | 3469 days | 2% |
| Jaroslav Kacmar | 7/10 | 3472 days | 1% |
| Fabian Probst | 7/10 | 3492 days | 1% |
| Jonas Neumann | 6/10 | 3502 days | 1% |
| Mark | 8/10 | 3509 days | 1% |
| Alicia Speisekorn-Gil | 10/10 | 3554 days | 1% |
| Marc Perales | 3/10 | 3556 days | 1% |
| Laura Leoekloek | 8/10 | 3581 days | 1% |
| Stephan Ophelders | 6/10 | 3823 days | 1% |
| Ross Clark | 9/10 | 3829 days | 1% |
| Anna Jungclaus | 4/10 | 3832 days | 0% |
| Paul and Astrid | 8/10 | 3836 days | 1% |
| Oliver Schatz | 6/10 | 3844 days | 1% |
| Nadja | 2/10 | 3844 days | 0% |
| Wil Goes | 4/10 | 3849 days | 0% |
| D Davey | 9/10 | 3851 days | 1% |
| Sylvain Blanchet | 10/10 | 3857 days | 1% |
| Ral Pritchard | 5/10 | 3868 days | 1% |
| Sue Strebe | 6/10 | 4208 days | 0% |
| Helen Parsons | 6/10 | 4214 days | 0% |
| Ann Wilson | 7/10 | 4541 days | 1% |
| Reto | 4/10 | 4569 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4571 days | 1% |
| Marius Hoffmann | 6/10 | 4572 days | 1% |
| Lena Jensen | 3/10 | 4590 days | 0% |
| Jesper Andersen | 4/10 | 4590 days | 0% |
| David Embling | 5/10 | 4591 days | 1% |
| Angela Neville | 8/10 | 4591 days | 1% |
| Derek Knight | 8/10 | 4597 days | 1% |
| Jacqui Knight | 8/10 | 4597 days | 1% |
| Elizabeth | 7/10 | 4616 days | 1% |
| Roy Driehuis | 7/10 | 4616 days | 1% |
| AusCampa | 3/10 | 4859 days | 0% |
| Andrew Grimes | 7/10 | 4915 days | 1% |
| Lynda Quartay | 9/10 | 4915 days | 1% |
| Julian Roots | 8/10 | 4920 days | 1% |
| Lorna and Seb | 6/10 | 4923 days | 1% |
| Mary Neustroski | 5/10 | 4934 days | 1% |
| Sam Bensemann | 10/10 | 4979 days | 1% |
| Mike Edwards | 8/10 | 4995 days | 1% |
| Annie | 5/10 | 5003 days | 1% |
| Dio | 6/10 | 5012 days | 1% |
| Michel Vourbraak | 8/10 | 5026 days | 1% |
| Evelyn Mackie | 10/10 | 5278 days | 1% |
| Matthias Angela | 6/10 | 5279 days | 1% |
| Jeltje | 5/10 | 5294 days | 1% |
| Baas | 7/10 | 5294 days | 1% |
| Josef | 1/10 | 5295 days | 0% |
| Sylvia & Garrit | 1/10 | 5299 days | 0% |
| Marco Scheiber | 8/10 | 5308 days | 1% |
| Volker Neumeyer | 9/10 | 5309 days | 1% |
| Anna | 2/10 | 5312 days | 0% |
| Duncan & Ellen | 5/10 | 5330 days | 1% |
| KandJ | 1/10 | 5345 days | 0% |
| Josh | 7/10 | 5388 days | 1% |
| Ray Coombe | 8/10 | 5388 days | 1% |
| Mr & Mrs Palmer | 7/10 | 5637 days | 1% |
| John Stokes | 8/10 | 5639 days | 1% |
| Julia | 2/10 | 5641 days | 0% |
| Juerg & Denise Zuesli | 3/10 | 5644 days | 0% |
| B Kleven | 7/10 | 5645 days | 1% |
| Anita Tonks | 4/10 | 5650 days | 0% |
| Carolin Ranner | 5/10 | 5652 days | 1% |
| Kasten | 4/10 | 5653 days | 0% |
| omlo | 3/10 | 5665 days | 0% |
| David Heads | 8/10 | 5666 days | 1% |
| Irene and Thib Schneider | 8/10 | 5667 days | 1% |
| Bahner | 10/10 | 5667 days | 1% |
| Teum and Orselien | 5/10 | 5667 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5670 days | 1% |
| Julia | 7/10 | 5671 days | 1% |
| Bas Geerts | 6/10 | 5672 days | 1% |
| Barbara | 7/10 | 5672 days | 1% |
| JohnHaestad | 7/10 | 5679 days | 1% |
| Grant | 8/10 | 5937 days | 1% |
| Quin | 8/10 | 5985 days | 1% |
| Kaddi & Grego | 1/10 | 6017 days | 0% |
| Thomas & Jucki | 8/10 | 6019 days | 1% |
| Rolf X | 4/10 | 6026 days | 0% |
| Gary Ebrig | 7/10 | 6029 days | 1% |
| J Kempeneers | 4/10 | 6030 days | 0% |
| Loleit | 1/10 | 6037 days | 0% |
| vanijzendoor | 8/10 | 6039 days | 1% |
| Sinjc Grude | 3/10 | 6041 days | 0% |
| Jeremy & Sarah Rind | 8/10 | 6043 days | 1% |
| Hugli | 9/10 | 6049 days | 1% |
| W David R Thomas | 5/10 | 6049 days | 1% |
| Beute Jacob | 7/10 | 6057 days | 1% |
| J P Paulvast | 8/10 | 6058 days | 1% |
| Beute Hjel | 8/10 | 6060 days | 1% |
| middendorp | 8/10 | 6090 days | 1% |
| Linda Coats | 10/10 | 6091 days | 1% |
| johnma | 10/10 | 6095 days | 1% |
| sels | 3/10 | 6106 days | 0% |
| Anna | 6/10 | 6136 days | 1% |
| alanvn | 3/10 | 6219 days | 0% |
| richards1 | 2/10 | 6231 days | 0% |
| KarinS | 5/10 | 6343 days | 1% |
| DirkGermany | 10/10 | 6345 days | 1% |
| KatrinS | 1/10 | 6362 days | 0% |
| Lucas | 7/10 | 6366 days | 1% |
| Anna Hansson | 10/10 | 6367 days | 1% |
| Anna Hansson | 10/10 | 6367 days | 1% |
| Sara Hansson | 9/10 | 6367 days | 1% |
| BevanLisa | 7/10 | 6367 days | 1% |
| Hans | 6/10 | 6367 days | 1% |
| OdiliaF | 10/10 | 6369 days | 1% |
| Mary | 9/10 | 6374 days | 1% |
| JetteG | 5/10 | 6384 days | 1% |
| VacherD | 8/10 | 6385 days | 1% |
| Adi | 10/10 | 6398 days | 1% |
| Philippa | 9/10 | 6398 days | 1% |
| De Vries | 7/10 | 6418 days | 1% |
| Debbie Mossman | 6/10 | 6425 days | 1% |
| nsmith | 9/10 | 6502 days | 1% |
| Gray | 10/10 | 6585 days | 1% |
| fgregory | 10/10 | 6612 days | 1% |
| Stewart | 6/10 | 6733 days | 1% |
| Sara Rütten | 4/10 | 6752 days | 0% |
| Sabine Feiner | 10/10 | 6755 days | 1% |
| Roger & Margaret | 8/10 | 6764 days | 1% |
| Gill O'Connor | 8/10 | 6766 days | 1% |
| Kevin | 9/10 | 6835 days | 1% |
| Floren | 8/10 | 6839 days | 1% |
| Rene Schotvanger | 4/10 | 6952 days | 0% |
| ranker_41 | 5/10 | 6952 days | 1% |
| Kate | 3/10 | 7108 days | 0% |
| Bernhard | 8/10 | 7124 days | 1% |
| Walburg | 8/10 | 7127 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
-1.98% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 109 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 166 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 163 | -1.94% |
| 164 | -1.95% |
| 165 | -1.96% |
| 166 | -1.98% |
| 167 | -1.99% |
| 168 | -2.00% |
| 169 | -2.01% |
| … | … |
Balancing Adjustment
10.44% 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.