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
131 Valid Reviews
The Buller Gorge Swingbridge experience has a total of 132 reviews. There are 131 valid reviews that are included when calculating the ranking score and 1 invalid review 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 | 9 |
|
7% |
| 2/10 | 6 |
|
5% |
| 1/10 | 6 |
|
5% |
64.50% Average
The raw data average (mean) for all the Buller Gorge Swingbridge valid reviews is 64.50% 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
119 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 119 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 119 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 | 5 |
|
4% |
| 1/10 | 5 |
|
4% |
65.21% Average
The raw data average (mean) for all the Buller Gorge Swingbridge face-to-face reviews is 65.21% and is based on 119 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
63.70%
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 |
|---|---|---|---|
| Deb Z | 2/10 | 1009 days | 100% |
| Solvejg Bjerg | 9/10 | 2845 days | 15% |
| Jaroslav Kacmar | 7/10 | 2848 days | 14% |
| Fabian Probst | 7/10 | 2868 days | 14% |
| Jonas Neumann | 6/10 | 2878 days | 13% |
| Mark | 8/10 | 2885 days | 15% |
| Alicia Speisekorn-Gil | 10/10 | 2930 days | 14% |
| Marc Perales | 3/10 | 2932 days | 8% |
| Laura Leoekloek | 8/10 | 2957 days | 14% |
| Stephan Ophelders | 6/10 | 3199 days | 10% |
| Ross Clark | 9/10 | 3205 days | 12% |
| Anna Jungclaus | 4/10 | 3208 days | 8% |
| Paul and Astrid | 8/10 | 3212 days | 11% |
| Oliver Schatz | 6/10 | 3220 days | 10% |
| Nadja | 2/10 | 3220 days | 5% |
| Wil Goes | 4/10 | 3225 days | 8% |
| D Davey | 9/10 | 3227 days | 11% |
| Sylvain Blanchet | 10/10 | 3233 days | 11% |
| Ral Pritchard | 5/10 | 3244 days | 9% |
| Sue Strebe | 6/10 | 3584 days | 7% |
| Helen Parsons | 6/10 | 3590 days | 7% |
| Ann Wilson | 7/10 | 3917 days | 4% |
| Reto | 4/10 | 3945 days | 3% |
| Tiit Pullerits | 2/10 | 3946 days | 2% |
| Glyn and Karen Farlow | 7/10 | 3947 days | 4% |
| Marius Hoffmann | 6/10 | 3948 days | 4% |
| Lena Jensen | 3/10 | 3966 days | 2% |
| Jesper Andersen | 4/10 | 3966 days | 3% |
| David Embling | 5/10 | 3967 days | 3% |
| Angela Neville | 8/10 | 3967 days | 4% |
| Derek Knight | 8/10 | 3973 days | 4% |
| Jacqui Knight | 8/10 | 3973 days | 4% |
| Elizabeth | 7/10 | 3992 days | 4% |
| Roy Driehuis | 7/10 | 3992 days | 4% |
| AusCampa | 3/10 | 4235 days | 1% |
| Andrew Grimes | 7/10 | 4291 days | 1% |
| Lynda Quartay | 9/10 | 4291 days | 1% |
| Julian Roots | 8/10 | 4296 days | 1% |
| Lorna and Seb | 6/10 | 4299 days | 1% |
| Mary Neustroski | 5/10 | 4310 days | 1% |
| Sam Bensemann | 10/10 | 4355 days | 0% |
| Mike Edwards | 8/10 | 4371 days | 0% |
| Annie | 5/10 | 4379 days | 0% |
| Dio | 6/10 | 4388 days | 4% |
| Michel Vourbraak | 8/10 | 4402 days | 5% |
| Evelyn Mackie | 10/10 | 4654 days | 5% |
| Matthias Angela | 6/10 | 4655 days | 4% |
| Jeltje | 5/10 | 4670 days | 4% |
| Baas | 7/10 | 4670 days | 5% |
| Josef | 1/10 | 4671 days | 2% |
| Sylvia & Garrit | 1/10 | 4675 days | 2% |
| Marco Scheiber | 8/10 | 4684 days | 5% |
| Volker Neumeyer | 9/10 | 4685 days | 5% |
| Anna | 2/10 | 4688 days | 2% |
| Duncan & Ellen | 5/10 | 4706 days | 4% |
| KandJ | 1/10 | 4721 days | 2% |
| Josh | 7/10 | 4764 days | 5% |
| Ray Coombe | 8/10 | 4764 days | 5% |
| Mr & Mrs Palmer | 7/10 | 5013 days | 5% |
| John Stokes | 8/10 | 5015 days | 5% |
| Julia | 2/10 | 5017 days | 2% |
| Juerg & Denise Zuesli | 3/10 | 5020 days | 3% |
| B Kleven | 7/10 | 5021 days | 5% |
| Anita Tonks | 4/10 | 5026 days | 3% |
| Carolin Ranner | 5/10 | 5028 days | 4% |
| Kasten | 4/10 | 5029 days | 3% |
| omlo | 3/10 | 5041 days | 3% |
| David Heads | 8/10 | 5042 days | 5% |
| Irene and Thib Schneider | 8/10 | 5043 days | 5% |
| Bahner | 10/10 | 5043 days | 5% |
| Teum and Orselien | 5/10 | 5043 days | 4% |
| Daniel Bogdanowitsch | 10/10 | 5046 days | 5% |
| Julia | 7/10 | 5047 days | 5% |
| Bas Geerts | 6/10 | 5048 days | 4% |
| Barbara | 7/10 | 5048 days | 5% |
| JohnHaestad | 7/10 | 5055 days | 5% |
| Grant | 8/10 | 5313 days | 5% |
| Quin | 8/10 | 5361 days | 5% |
| Kaddi & Grego | 1/10 | 5393 days | 2% |
| Thomas & Jucki | 8/10 | 5395 days | 5% |
| Rolf X | 4/10 | 5402 days | 3% |
| Gary Ebrig | 7/10 | 5405 days | 5% |
| J Kempeneers | 4/10 | 5406 days | 3% |
| Loleit | 1/10 | 5413 days | 2% |
| vanijzendoor | 8/10 | 5415 days | 5% |
| Sinjc Grude | 3/10 | 5417 days | 3% |
| Jeremy & Sarah Rind | 8/10 | 5419 days | 5% |
| Hugli | 9/10 | 5425 days | 5% |
| W David R Thomas | 5/10 | 5425 days | 4% |
| Beute Jacob | 7/10 | 5433 days | 5% |
| J P Paulvast | 8/10 | 5434 days | 5% |
| Beute Hjel | 8/10 | 5436 days | 5% |
| middendorp | 8/10 | 5466 days | 5% |
| Linda Coats | 10/10 | 5467 days | 5% |
| johnma | 10/10 | 5471 days | 5% |
| sels | 3/10 | 5482 days | 3% |
| Anna | 6/10 | 5512 days | 4% |
| alanvn | 3/10 | 5595 days | 3% |
| richards1 | 2/10 | 5607 days | 2% |
| KarinS | 5/10 | 5719 days | 4% |
| DirkGermany | 10/10 | 5721 days | 5% |
| KatrinS | 1/10 | 5738 days | 2% |
| Lucas | 7/10 | 5742 days | 5% |
| Anna Hansson | 10/10 | 5743 days | 5% |
| Anna Hansson | 10/10 | 5743 days | 5% |
| Sara Hansson | 9/10 | 5743 days | 5% |
| BevanLisa | 7/10 | 5743 days | 5% |
| Hans | 6/10 | 5743 days | 4% |
| OdiliaF | 10/10 | 5745 days | 5% |
| Mary | 9/10 | 5750 days | 5% |
| JetteG | 5/10 | 5760 days | 4% |
| VacherD | 8/10 | 5761 days | 5% |
| Adi | 10/10 | 5774 days | 5% |
| Philippa | 9/10 | 5774 days | 5% |
| De Vries | 7/10 | 5794 days | 5% |
| Debbie Mossman | 6/10 | 5800 days | 4% |
| nsmith | 9/10 | 5878 days | 5% |
| Gray | 10/10 | 5961 days | 5% |
| fgregory | 10/10 | 5988 days | 5% |
| Stewart | 6/10 | 6109 days | 4% |
| Sara Rütten | 4/10 | 6128 days | 3% |
| Sabine Feiner | 10/10 | 6131 days | 5% |
| Roger & Margaret | 8/10 | 6140 days | 5% |
| Gill O'Connor | 8/10 | 6142 days | 5% |
| Kevin | 9/10 | 6211 days | 5% |
| Floren | 8/10 | 6215 days | 5% |
| Rene Schotvanger | 4/10 | 6328 days | 3% |
| ranker_41 | 5/10 | 6328 days | 4% |
| Kate | 3/10 | 6484 days | 3% |
| Bernhard | 8/10 | 6500 days | 5% |
| Walburg | 8/10 | 6503 days | 5% |
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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
14.29% 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
74%
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.