Hi, 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
66.89%
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 | 214 days | 100% |
| Christina | 3/10 | 638 days | 44% |
| Deb Z | 2/10 | 1675 days | 3% |
| Solvejg Bjerg | 9/10 | 3511 days | 2% |
| Jaroslav Kacmar | 7/10 | 3514 days | 1% |
| Fabian Probst | 7/10 | 3534 days | 1% |
| Jonas Neumann | 6/10 | 3544 days | 1% |
| Mark | 8/10 | 3551 days | 1% |
| Alicia Speisekorn-Gil | 10/10 | 3596 days | 1% |
| Marc Perales | 3/10 | 3598 days | 1% |
| Laura Leoekloek | 8/10 | 3623 days | 1% |
| Stephan Ophelders | 6/10 | 3865 days | 1% |
| Ross Clark | 9/10 | 3871 days | 1% |
| Anna Jungclaus | 4/10 | 3874 days | 0% |
| Paul and Astrid | 8/10 | 3878 days | 1% |
| Oliver Schatz | 6/10 | 3886 days | 1% |
| Nadja | 2/10 | 3886 days | 0% |
| Wil Goes | 4/10 | 3891 days | 0% |
| D Davey | 9/10 | 3893 days | 1% |
| Sylvain Blanchet | 10/10 | 3899 days | 1% |
| Ral Pritchard | 5/10 | 3910 days | 1% |
| Sue Strebe | 6/10 | 4250 days | 0% |
| Helen Parsons | 6/10 | 4256 days | 0% |
| Ann Wilson | 7/10 | 4583 days | 1% |
| Reto | 4/10 | 4611 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4613 days | 1% |
| Marius Hoffmann | 6/10 | 4614 days | 1% |
| Lena Jensen | 3/10 | 4632 days | 0% |
| Jesper Andersen | 4/10 | 4632 days | 0% |
| David Embling | 5/10 | 4633 days | 1% |
| Angela Neville | 8/10 | 4633 days | 1% |
| Derek Knight | 8/10 | 4639 days | 1% |
| Jacqui Knight | 8/10 | 4639 days | 1% |
| Elizabeth | 7/10 | 4658 days | 1% |
| Roy Driehuis | 7/10 | 4658 days | 1% |
| AusCampa | 3/10 | 4901 days | 0% |
| Andrew Grimes | 7/10 | 4957 days | 1% |
| Lynda Quartay | 9/10 | 4957 days | 1% |
| Julian Roots | 8/10 | 4962 days | 1% |
| Lorna and Seb | 6/10 | 4965 days | 1% |
| Mary Neustroski | 5/10 | 4976 days | 1% |
| Sam Bensemann | 10/10 | 5021 days | 1% |
| Mike Edwards | 8/10 | 5037 days | 1% |
| Annie | 5/10 | 5045 days | 1% |
| Dio | 6/10 | 5054 days | 1% |
| Michel Vourbraak | 8/10 | 5068 days | 1% |
| Evelyn Mackie | 10/10 | 5320 days | 1% |
| Matthias Angela | 6/10 | 5321 days | 1% |
| Jeltje | 5/10 | 5336 days | 1% |
| Baas | 7/10 | 5336 days | 1% |
| Josef | 1/10 | 5337 days | 0% |
| Sylvia & Garrit | 1/10 | 5341 days | 0% |
| Marco Scheiber | 8/10 | 5350 days | 1% |
| Volker Neumeyer | 9/10 | 5351 days | 1% |
| Anna | 2/10 | 5354 days | 0% |
| Duncan & Ellen | 5/10 | 5372 days | 1% |
| KandJ | 1/10 | 5387 days | 0% |
| Josh | 7/10 | 5430 days | 1% |
| Ray Coombe | 8/10 | 5430 days | 1% |
| Mr & Mrs Palmer | 7/10 | 5679 days | 1% |
| John Stokes | 8/10 | 5681 days | 1% |
| Julia | 2/10 | 5683 days | 0% |
| Juerg & Denise Zuesli | 3/10 | 5686 days | 0% |
| B Kleven | 7/10 | 5687 days | 1% |
| Anita Tonks | 4/10 | 5692 days | 0% |
| Carolin Ranner | 5/10 | 5694 days | 1% |
| Kasten | 4/10 | 5695 days | 0% |
| omlo | 3/10 | 5707 days | 0% |
| David Heads | 8/10 | 5708 days | 1% |
| Irene and Thib Schneider | 8/10 | 5709 days | 1% |
| Bahner | 10/10 | 5709 days | 1% |
| Teum and Orselien | 5/10 | 5709 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5712 days | 1% |
| Julia | 7/10 | 5713 days | 1% |
| Bas Geerts | 6/10 | 5714 days | 1% |
| Barbara | 7/10 | 5714 days | 1% |
| JohnHaestad | 7/10 | 5721 days | 1% |
| Grant | 8/10 | 5979 days | 1% |
| Quin | 8/10 | 6027 days | 1% |
| Kaddi & Grego | 1/10 | 6059 days | 0% |
| Thomas & Jucki | 8/10 | 6061 days | 1% |
| Rolf X | 4/10 | 6068 days | 0% |
| Gary Ebrig | 7/10 | 6071 days | 1% |
| J Kempeneers | 4/10 | 6072 days | 0% |
| Loleit | 1/10 | 6079 days | 0% |
| vanijzendoor | 8/10 | 6081 days | 1% |
| Sinjc Grude | 3/10 | 6083 days | 0% |
| Jeremy & Sarah Rind | 8/10 | 6085 days | 1% |
| Hugli | 9/10 | 6091 days | 1% |
| W David R Thomas | 5/10 | 6091 days | 1% |
| Beute Jacob | 7/10 | 6099 days | 1% |
| J P Paulvast | 8/10 | 6100 days | 1% |
| Beute Hjel | 8/10 | 6102 days | 1% |
| middendorp | 8/10 | 6132 days | 1% |
| Linda Coats | 10/10 | 6133 days | 1% |
| johnma | 10/10 | 6137 days | 1% |
| sels | 3/10 | 6148 days | 0% |
| Anna | 6/10 | 6178 days | 1% |
| alanvn | 3/10 | 6261 days | 0% |
| richards1 | 2/10 | 6273 days | 0% |
| KarinS | 5/10 | 6385 days | 1% |
| DirkGermany | 10/10 | 6387 days | 1% |
| KatrinS | 1/10 | 6404 days | 0% |
| Lucas | 7/10 | 6409 days | 1% |
| Anna Hansson | 10/10 | 6409 days | 1% |
| Anna Hansson | 10/10 | 6409 days | 1% |
| Sara Hansson | 9/10 | 6409 days | 1% |
| BevanLisa | 7/10 | 6409 days | 1% |
| Hans | 6/10 | 6409 days | 1% |
| OdiliaF | 10/10 | 6411 days | 1% |
| Mary | 9/10 | 6417 days | 1% |
| JetteG | 5/10 | 6426 days | 1% |
| VacherD | 8/10 | 6427 days | 1% |
| Adi | 10/10 | 6441 days | 1% |
| Philippa | 9/10 | 6441 days | 1% |
| De Vries | 7/10 | 6461 days | 1% |
| Debbie Mossman | 6/10 | 6467 days | 1% |
| nsmith | 9/10 | 6545 days | 1% |
| Gray | 10/10 | 6628 days | 1% |
| fgregory | 10/10 | 6655 days | 1% |
| Stewart | 6/10 | 6775 days | 1% |
| Sara Rütten | 4/10 | 6795 days | 0% |
| Sabine Feiner | 10/10 | 6797 days | 1% |
| Roger & Margaret | 8/10 | 6806 days | 1% |
| Gill O'Connor | 8/10 | 6808 days | 1% |
| Kevin | 9/10 | 6877 days | 1% |
| Floren | 8/10 | 6881 days | 1% |
| Rene Schotvanger | 4/10 | 6994 days | 0% |
| ranker_41 | 5/10 | 6994 days | 1% |
| Kate | 3/10 | 7150 days | 0% |
| Bernhard | 8/10 | 7166 days | 1% |
| Walburg | 8/10 | 7169 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
-3.27% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 67 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 | -3.22% |
| 198 | -3.24% |
| 199 | -3.26% |
| 200 | -3.27% |
| 201 | -3.29% |
| 202 | -3.31% |
| 203 | -3.32% |
| … | … |
Balancing Adjustment
11.22% 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.