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.
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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 | 28 |
|
21% |
| 7/10 | 19 |
|
14% |
| 6/10 | 14 |
|
11% |
| 5/10 | 12 |
|
9% |
| 4/10 | 10 |
|
8% |
| 3/10 | 10 |
|
8% |
| 2/10 | 6 |
|
5% |
| 1/10 | 6 |
|
5% |
64.24% Average
The raw data average (mean) for all the Buller Gorge Swingbridge valid reviews is 64.24% 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
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 132 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
55.63%
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 | 94 days | 100% |
| Deb Z | 2/10 | 1131 days | 27% |
| Solvejg Bjerg | 9/10 | 2967 days | 5% |
| Jaroslav Kacmar | 7/10 | 2970 days | 5% |
| Fabian Probst | 7/10 | 2990 days | 5% |
| Jonas Neumann | 6/10 | 3000 days | 4% |
| Mark | 8/10 | 3007 days | 5% |
| Alicia Speisekorn-Gil | 10/10 | 3052 days | 5% |
| Marc Perales | 3/10 | 3054 days | 3% |
| Laura Leoekloek | 8/10 | 3079 days | 5% |
| Stephan Ophelders | 6/10 | 3321 days | 3% |
| Ross Clark | 9/10 | 3327 days | 4% |
| Anna Jungclaus | 4/10 | 3330 days | 2% |
| Paul and Astrid | 8/10 | 3334 days | 4% |
| Oliver Schatz | 6/10 | 3342 days | 3% |
| Nadja | 2/10 | 3342 days | 2% |
| Wil Goes | 4/10 | 3347 days | 2% |
| D Davey | 9/10 | 3349 days | 4% |
| Sylvain Blanchet | 10/10 | 3355 days | 4% |
| Ral Pritchard | 5/10 | 3366 days | 3% |
| Sue Strebe | 6/10 | 3706 days | 2% |
| Helen Parsons | 6/10 | 3712 days | 2% |
| Ann Wilson | 7/10 | 4039 days | 1% |
| Reto | 4/10 | 4067 days | 1% |
| Tiit Pullerits | 2/10 | 4068 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4069 days | 1% |
| Marius Hoffmann | 6/10 | 4070 days | 1% |
| Lena Jensen | 3/10 | 4088 days | 1% |
| Jesper Andersen | 4/10 | 4088 days | 1% |
| David Embling | 5/10 | 4089 days | 1% |
| Angela Neville | 8/10 | 4089 days | 1% |
| Derek Knight | 8/10 | 4095 days | 1% |
| Jacqui Knight | 8/10 | 4095 days | 1% |
| Elizabeth | 7/10 | 4114 days | 1% |
| Roy Driehuis | 7/10 | 4114 days | 1% |
| AusCampa | 3/10 | 4357 days | 0% |
| Andrew Grimes | 7/10 | 4413 days | 2% |
| Lynda Quartay | 9/10 | 4413 days | 2% |
| Julian Roots | 8/10 | 4418 days | 2% |
| Lorna and Seb | 6/10 | 4421 days | 2% |
| Mary Neustroski | 5/10 | 4432 days | 1% |
| Sam Bensemann | 10/10 | 4477 days | 2% |
| Mike Edwards | 8/10 | 4493 days | 2% |
| Annie | 5/10 | 4501 days | 1% |
| Dio | 6/10 | 4510 days | 2% |
| Michel Vourbraak | 8/10 | 4524 days | 2% |
| Evelyn Mackie | 10/10 | 4776 days | 2% |
| Matthias Angela | 6/10 | 4777 days | 2% |
| Jeltje | 5/10 | 4792 days | 1% |
| Baas | 7/10 | 4792 days | 2% |
| Josef | 1/10 | 4793 days | 1% |
| Sylvia & Garrit | 1/10 | 4797 days | 1% |
| Marco Scheiber | 8/10 | 4806 days | 2% |
| Volker Neumeyer | 9/10 | 4807 days | 2% |
| Anna | 2/10 | 4810 days | 1% |
| Duncan & Ellen | 5/10 | 4828 days | 1% |
| KandJ | 1/10 | 4843 days | 1% |
| Josh | 7/10 | 4886 days | 2% |
| Ray Coombe | 8/10 | 4886 days | 2% |
| Mr & Mrs Palmer | 7/10 | 5135 days | 2% |
| John Stokes | 8/10 | 5137 days | 2% |
| Julia | 2/10 | 5139 days | 1% |
| Juerg & Denise Zuesli | 3/10 | 5142 days | 1% |
| B Kleven | 7/10 | 5143 days | 2% |
| Anita Tonks | 4/10 | 5148 days | 1% |
| Carolin Ranner | 5/10 | 5150 days | 1% |
| Kasten | 4/10 | 5151 days | 1% |
| omlo | 3/10 | 5163 days | 1% |
| David Heads | 8/10 | 5164 days | 2% |
| Irene and Thib Schneider | 8/10 | 5165 days | 2% |
| Bahner | 10/10 | 5165 days | 2% |
| Teum and Orselien | 5/10 | 5165 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5168 days | 2% |
| Julia | 7/10 | 5169 days | 2% |
| Bas Geerts | 6/10 | 5170 days | 2% |
| Barbara | 7/10 | 5170 days | 2% |
| JohnHaestad | 7/10 | 5177 days | 2% |
| Grant | 8/10 | 5435 days | 2% |
| Quin | 8/10 | 5483 days | 2% |
| Kaddi & Grego | 1/10 | 5515 days | 1% |
| Thomas & Jucki | 8/10 | 5517 days | 2% |
| Rolf X | 4/10 | 5524 days | 1% |
| Gary Ebrig | 7/10 | 5527 days | 2% |
| J Kempeneers | 4/10 | 5528 days | 1% |
| Loleit | 1/10 | 5535 days | 1% |
| vanijzendoor | 8/10 | 5537 days | 2% |
| Sinjc Grude | 3/10 | 5539 days | 1% |
| Jeremy & Sarah Rind | 8/10 | 5541 days | 2% |
| Hugli | 9/10 | 5547 days | 2% |
| W David R Thomas | 5/10 | 5547 days | 1% |
| Beute Jacob | 7/10 | 5555 days | 2% |
| J P Paulvast | 8/10 | 5556 days | 2% |
| Beute Hjel | 8/10 | 5558 days | 2% |
| middendorp | 8/10 | 5588 days | 2% |
| Linda Coats | 10/10 | 5589 days | 2% |
| johnma | 10/10 | 5593 days | 2% |
| sels | 3/10 | 5604 days | 1% |
| Anna | 6/10 | 5634 days | 2% |
| alanvn | 3/10 | 5717 days | 1% |
| richards1 | 2/10 | 5729 days | 1% |
| KarinS | 5/10 | 5841 days | 1% |
| DirkGermany | 10/10 | 5843 days | 2% |
| KatrinS | 1/10 | 5860 days | 1% |
| Lucas | 7/10 | 5865 days | 2% |
| Anna Hansson | 10/10 | 5865 days | 2% |
| Anna Hansson | 10/10 | 5865 days | 2% |
| Sara Hansson | 9/10 | 5865 days | 2% |
| BevanLisa | 7/10 | 5865 days | 2% |
| Hans | 6/10 | 5865 days | 2% |
| OdiliaF | 10/10 | 5867 days | 2% |
| Mary | 9/10 | 5872 days | 2% |
| JetteG | 5/10 | 5882 days | 1% |
| VacherD | 8/10 | 5883 days | 2% |
| Adi | 10/10 | 5897 days | 2% |
| Philippa | 9/10 | 5897 days | 2% |
| De Vries | 7/10 | 5916 days | 2% |
| Debbie Mossman | 6/10 | 5923 days | 2% |
| nsmith | 9/10 | 6001 days | 2% |
| Gray | 10/10 | 6084 days | 2% |
| fgregory | 10/10 | 6111 days | 2% |
| Stewart | 6/10 | 6231 days | 2% |
| Sara Rütten | 4/10 | 6250 days | 1% |
| Sabine Feiner | 10/10 | 6253 days | 2% |
| Roger & Margaret | 8/10 | 6262 days | 2% |
| Gill O'Connor | 8/10 | 6264 days | 2% |
| Kevin | 9/10 | 6333 days | 2% |
| Floren | 8/10 | 6337 days | 2% |
| Rene Schotvanger | 4/10 | 6450 days | 1% |
| ranker_41 | 5/10 | 6450 days | 1% |
| Kate | 3/10 | 6606 days | 1% |
| Bernhard | 8/10 | 6622 days | 2% |
| Walburg | 8/10 | 6625 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
-1.54% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 61 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 84 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 81 | -1.48% |
| 82 | -1.50% |
| 83 | -1.52% |
| 84 | -1.54% |
| 85 | -1.56% |
| 86 | -1.58% |
| 87 | -1.59% |
| … | … |
Balancing Adjustment
18.73% 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.