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
131 Valid Reviews
The Buller Gorge Swingbridge experience has a total of 133 reviews. There are 131 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 131 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 16 |
|
12% |
| 9/10 | 11 |
|
8% |
| 8/10 | 28 |
|
21% |
| 7/10 | 19 |
|
15% |
| 6/10 | 14 |
|
11% |
| 5/10 | 12 |
|
9% |
| 4/10 | 10 |
|
8% |
| 3/10 | 10 |
|
8% |
| 2/10 | 5 |
|
4% |
| 1/10 | 6 |
|
5% |
64.58% Average
The raw data average (mean) for all the Buller Gorge Swingbridge valid reviews is 64.58% and is based on 131 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 131 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
56.97%
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 |
|---|---|---|---|
| Christina | 3/10 | 374 days | 100% |
| Deb Z | 2/10 | 1411 days | 13% |
| Solvejg Bjerg | 9/10 | 3247 days | 4% |
| Jaroslav Kacmar | 7/10 | 3250 days | 4% |
| Fabian Probst | 7/10 | 3270 days | 4% |
| Jonas Neumann | 6/10 | 3280 days | 4% |
| Mark | 8/10 | 3287 days | 4% |
| Alicia Speisekorn-Gil | 10/10 | 3332 days | 4% |
| Marc Perales | 3/10 | 3334 days | 2% |
| Laura Leoekloek | 8/10 | 3359 days | 4% |
| Stephan Ophelders | 6/10 | 3601 days | 3% |
| Ross Clark | 9/10 | 3607 days | 3% |
| Anna Jungclaus | 4/10 | 3610 days | 2% |
| Paul and Astrid | 8/10 | 3614 days | 3% |
| Oliver Schatz | 6/10 | 3622 days | 3% |
| Nadja | 2/10 | 3622 days | 1% |
| Wil Goes | 4/10 | 3627 days | 2% |
| D Davey | 9/10 | 3629 days | 3% |
| Sylvain Blanchet | 10/10 | 3635 days | 3% |
| Ral Pritchard | 5/10 | 3646 days | 2% |
| Sue Strebe | 6/10 | 3986 days | 1% |
| Helen Parsons | 6/10 | 3992 days | 1% |
| Ann Wilson | 7/10 | 4319 days | 0% |
| Reto | 4/10 | 4347 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4349 days | 0% |
| Marius Hoffmann | 6/10 | 4350 days | 0% |
| Lena Jensen | 3/10 | 4368 days | 0% |
| Jesper Andersen | 4/10 | 4368 days | 0% |
| David Embling | 5/10 | 4369 days | 0% |
| Angela Neville | 8/10 | 4369 days | 0% |
| Derek Knight | 8/10 | 4375 days | 0% |
| Jacqui Knight | 8/10 | 4375 days | 0% |
| Elizabeth | 7/10 | 4394 days | 2% |
| Roy Driehuis | 7/10 | 4394 days | 2% |
| AusCampa | 3/10 | 4637 days | 1% |
| Andrew Grimes | 7/10 | 4693 days | 2% |
| Lynda Quartay | 9/10 | 4693 days | 2% |
| Julian Roots | 8/10 | 4698 days | 2% |
| Lorna and Seb | 6/10 | 4701 days | 2% |
| Mary Neustroski | 5/10 | 4712 days | 2% |
| Sam Bensemann | 10/10 | 4757 days | 2% |
| Mike Edwards | 8/10 | 4773 days | 2% |
| Annie | 5/10 | 4781 days | 2% |
| Dio | 6/10 | 4790 days | 2% |
| Michel Vourbraak | 8/10 | 4804 days | 2% |
| Evelyn Mackie | 10/10 | 5056 days | 2% |
| Matthias Angela | 6/10 | 5057 days | 2% |
| Jeltje | 5/10 | 5072 days | 2% |
| Baas | 7/10 | 5072 days | 2% |
| Josef | 1/10 | 5073 days | 1% |
| Sylvia & Garrit | 1/10 | 5077 days | 1% |
| Marco Scheiber | 8/10 | 5086 days | 2% |
| Volker Neumeyer | 9/10 | 5087 days | 2% |
| Anna | 2/10 | 5090 days | 1% |
| Duncan & Ellen | 5/10 | 5108 days | 2% |
| KandJ | 1/10 | 5123 days | 1% |
| Josh | 7/10 | 5166 days | 2% |
| Ray Coombe | 8/10 | 5166 days | 2% |
| Mr & Mrs Palmer | 7/10 | 5415 days | 2% |
| John Stokes | 8/10 | 5417 days | 2% |
| Julia | 2/10 | 5419 days | 1% |
| Juerg & Denise Zuesli | 3/10 | 5422 days | 1% |
| B Kleven | 7/10 | 5423 days | 2% |
| Anita Tonks | 4/10 | 5428 days | 1% |
| Carolin Ranner | 5/10 | 5430 days | 2% |
| Kasten | 4/10 | 5431 days | 1% |
| omlo | 3/10 | 5443 days | 1% |
| David Heads | 8/10 | 5444 days | 2% |
| Irene and Thib Schneider | 8/10 | 5445 days | 2% |
| Bahner | 10/10 | 5445 days | 2% |
| Teum and Orselien | 5/10 | 5445 days | 2% |
| Daniel Bogdanowitsch | 10/10 | 5448 days | 2% |
| Julia | 7/10 | 5449 days | 2% |
| Bas Geerts | 6/10 | 5450 days | 2% |
| Barbara | 7/10 | 5450 days | 2% |
| JohnHaestad | 7/10 | 5457 days | 2% |
| Grant | 8/10 | 5715 days | 2% |
| Quin | 8/10 | 5763 days | 2% |
| Kaddi & Grego | 1/10 | 5795 days | 1% |
| Thomas & Jucki | 8/10 | 5797 days | 2% |
| Rolf X | 4/10 | 5804 days | 1% |
| Gary Ebrig | 7/10 | 5807 days | 2% |
| J Kempeneers | 4/10 | 5808 days | 1% |
| Loleit | 1/10 | 5815 days | 1% |
| vanijzendoor | 8/10 | 5817 days | 2% |
| Sinjc Grude | 3/10 | 5819 days | 1% |
| Jeremy & Sarah Rind | 8/10 | 5821 days | 2% |
| Hugli | 9/10 | 5827 days | 2% |
| W David R Thomas | 5/10 | 5827 days | 2% |
| Beute Jacob | 7/10 | 5835 days | 2% |
| J P Paulvast | 8/10 | 5836 days | 2% |
| Beute Hjel | 8/10 | 5838 days | 2% |
| middendorp | 8/10 | 5868 days | 2% |
| Linda Coats | 10/10 | 5869 days | 2% |
| johnma | 10/10 | 5873 days | 2% |
| sels | 3/10 | 5884 days | 1% |
| Anna | 6/10 | 5914 days | 2% |
| alanvn | 3/10 | 5997 days | 1% |
| richards1 | 2/10 | 6009 days | 1% |
| KarinS | 5/10 | 6121 days | 2% |
| DirkGermany | 10/10 | 6123 days | 2% |
| KatrinS | 1/10 | 6140 days | 1% |
| Lucas | 7/10 | 6145 days | 2% |
| Anna Hansson | 10/10 | 6145 days | 2% |
| Anna Hansson | 10/10 | 6145 days | 2% |
| Sara Hansson | 9/10 | 6145 days | 2% |
| BevanLisa | 7/10 | 6145 days | 2% |
| Hans | 6/10 | 6145 days | 2% |
| OdiliaF | 10/10 | 6147 days | 2% |
| Mary | 9/10 | 6152 days | 2% |
| JetteG | 5/10 | 6162 days | 2% |
| VacherD | 8/10 | 6163 days | 2% |
| Adi | 10/10 | 6177 days | 2% |
| Philippa | 9/10 | 6177 days | 2% |
| De Vries | 7/10 | 6196 days | 2% |
| Debbie Mossman | 6/10 | 6203 days | 2% |
| nsmith | 9/10 | 6281 days | 2% |
| Gray | 10/10 | 6364 days | 2% |
| fgregory | 10/10 | 6391 days | 2% |
| Stewart | 6/10 | 6511 days | 2% |
| Sara Rütten | 4/10 | 6530 days | 1% |
| Sabine Feiner | 10/10 | 6533 days | 2% |
| Roger & Margaret | 8/10 | 6542 days | 2% |
| Gill O'Connor | 8/10 | 6544 days | 2% |
| Kevin | 9/10 | 6613 days | 2% |
| Floren | 8/10 | 6617 days | 2% |
| Rene Schotvanger | 4/10 | 6730 days | 1% |
| ranker_41 | 5/10 | 6730 days | 2% |
| Kate | 3/10 | 6886 days | 1% |
| Bernhard | 8/10 | 6902 days | 2% |
| Walburg | 8/10 | 6905 days | 2% |
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
-4.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 44 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 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.07% |
| 202 | -4.09% |
| 203 | -4.11% |
| … | … |
Balancing Adjustment
19.68% 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
73%
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.