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 133 reviews. There are 132 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 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
55.02%
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 | 29 days | 100% |
| Deb Z | 2/10 | 1066 days | 32% |
| Solvejg Bjerg | 9/10 | 2902 days | 5% |
| Jaroslav Kacmar | 7/10 | 2905 days | 5% |
| Fabian Probst | 7/10 | 2925 days | 5% |
| Jonas Neumann | 6/10 | 2935 days | 4% |
| Mark | 8/10 | 2942 days | 5% |
| Alicia Speisekorn-Gil | 10/10 | 2987 days | 5% |
| Marc Perales | 3/10 | 2989 days | 3% |
| Laura Leoekloek | 8/10 | 3014 days | 5% |
| Stephan Ophelders | 6/10 | 3256 days | 3% |
| Ross Clark | 9/10 | 3262 days | 4% |
| Anna Jungclaus | 4/10 | 3265 days | 3% |
| Paul and Astrid | 8/10 | 3269 days | 4% |
| Oliver Schatz | 6/10 | 3277 days | 3% |
| Nadja | 2/10 | 3277 days | 2% |
| Wil Goes | 4/10 | 3282 days | 3% |
| D Davey | 9/10 | 3284 days | 4% |
| Sylvain Blanchet | 10/10 | 3290 days | 4% |
| Ral Pritchard | 5/10 | 3301 days | 3% |
| Sue Strebe | 6/10 | 3641 days | 2% |
| Helen Parsons | 6/10 | 3647 days | 2% |
| Ann Wilson | 7/10 | 3974 days | 1% |
| Reto | 4/10 | 4002 days | 1% |
| Tiit Pullerits | 2/10 | 4003 days | 1% |
| Glyn and Karen Farlow | 7/10 | 4004 days | 1% |
| Marius Hoffmann | 6/10 | 4005 days | 1% |
| Lena Jensen | 3/10 | 4023 days | 1% |
| Jesper Andersen | 4/10 | 4023 days | 1% |
| David Embling | 5/10 | 4024 days | 1% |
| Angela Neville | 8/10 | 4024 days | 1% |
| Derek Knight | 8/10 | 4030 days | 1% |
| Jacqui Knight | 8/10 | 4030 days | 1% |
| Elizabeth | 7/10 | 4049 days | 1% |
| Roy Driehuis | 7/10 | 4049 days | 1% |
| AusCampa | 3/10 | 4292 days | 0% |
| Andrew Grimes | 7/10 | 4348 days | 0% |
| Lynda Quartay | 9/10 | 4348 days | 0% |
| Julian Roots | 8/10 | 4353 days | 0% |
| Lorna and Seb | 6/10 | 4356 days | 0% |
| Mary Neustroski | 5/10 | 4367 days | 0% |
| Sam Bensemann | 10/10 | 4412 days | 2% |
| Mike Edwards | 8/10 | 4428 days | 2% |
| Annie | 5/10 | 4436 days | 1% |
| Dio | 6/10 | 4445 days | 2% |
| Michel Vourbraak | 8/10 | 4459 days | 2% |
| Evelyn Mackie | 10/10 | 4711 days | 2% |
| Matthias Angela | 6/10 | 4712 days | 2% |
| Jeltje | 5/10 | 4727 days | 1% |
| Baas | 7/10 | 4727 days | 2% |
| Josef | 1/10 | 4728 days | 1% |
| Sylvia & Garrit | 1/10 | 4732 days | 1% |
| Marco Scheiber | 8/10 | 4741 days | 2% |
| Volker Neumeyer | 9/10 | 4742 days | 2% |
| Anna | 2/10 | 4745 days | 1% |
| Duncan & Ellen | 5/10 | 4763 days | 1% |
| KandJ | 1/10 | 4778 days | 1% |
| Josh | 7/10 | 4821 days | 2% |
| Ray Coombe | 8/10 | 4821 days | 2% |
| Mr & Mrs Palmer | 7/10 | 5070 days | 2% |
| John Stokes | 8/10 | 5072 days | 2% |
| Julia | 2/10 | 5074 days | 1% |
| Juerg & Denise Zuesli | 3/10 | 5077 days | 1% |
| B Kleven | 7/10 | 5078 days | 2% |
| Anita Tonks | 4/10 | 5083 days | 1% |
| Carolin Ranner | 5/10 | 5085 days | 1% |
| Kasten | 4/10 | 5086 days | 1% |
| omlo | 3/10 | 5098 days | 1% |
| David Heads | 8/10 | 5099 days | 2% |
| Irene and Thib Schneider | 8/10 | 5100 days | 2% |
| Bahner | 10/10 | 5100 days | 2% |
| Teum and Orselien | 5/10 | 5100 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5103 days | 2% |
| Julia | 7/10 | 5104 days | 2% |
| Bas Geerts | 6/10 | 5105 days | 2% |
| Barbara | 7/10 | 5105 days | 2% |
| JohnHaestad | 7/10 | 5112 days | 2% |
| Grant | 8/10 | 5370 days | 2% |
| Quin | 8/10 | 5418 days | 2% |
| Kaddi & Grego | 1/10 | 5450 days | 1% |
| Thomas & Jucki | 8/10 | 5452 days | 2% |
| Rolf X | 4/10 | 5459 days | 1% |
| Gary Ebrig | 7/10 | 5462 days | 2% |
| J Kempeneers | 4/10 | 5463 days | 1% |
| Loleit | 1/10 | 5470 days | 1% |
| vanijzendoor | 8/10 | 5472 days | 2% |
| Sinjc Grude | 3/10 | 5474 days | 1% |
| Jeremy & Sarah Rind | 8/10 | 5476 days | 2% |
| Hugli | 9/10 | 5482 days | 2% |
| W David R Thomas | 5/10 | 5482 days | 1% |
| Beute Jacob | 7/10 | 5490 days | 2% |
| J P Paulvast | 8/10 | 5491 days | 2% |
| Beute Hjel | 8/10 | 5493 days | 2% |
| middendorp | 8/10 | 5523 days | 2% |
| Linda Coats | 10/10 | 5524 days | 2% |
| johnma | 10/10 | 5528 days | 2% |
| sels | 3/10 | 5539 days | 1% |
| Anna | 6/10 | 5569 days | 2% |
| alanvn | 3/10 | 5652 days | 1% |
| richards1 | 2/10 | 5664 days | 1% |
| KarinS | 5/10 | 5776 days | 1% |
| DirkGermany | 10/10 | 5778 days | 2% |
| KatrinS | 1/10 | 5795 days | 1% |
| Lucas | 7/10 | 5799 days | 2% |
| Anna Hansson | 10/10 | 5800 days | 2% |
| Anna Hansson | 10/10 | 5800 days | 2% |
| Sara Hansson | 9/10 | 5800 days | 2% |
| BevanLisa | 7/10 | 5800 days | 2% |
| Hans | 6/10 | 5800 days | 2% |
| OdiliaF | 10/10 | 5802 days | 2% |
| Mary | 9/10 | 5807 days | 2% |
| JetteG | 5/10 | 5817 days | 1% |
| VacherD | 8/10 | 5818 days | 2% |
| Adi | 10/10 | 5831 days | 2% |
| Philippa | 9/10 | 5831 days | 2% |
| De Vries | 7/10 | 5851 days | 2% |
| Debbie Mossman | 6/10 | 5858 days | 2% |
| nsmith | 9/10 | 5935 days | 2% |
| Gray | 10/10 | 6018 days | 2% |
| fgregory | 10/10 | 6045 days | 2% |
| Stewart | 6/10 | 6166 days | 2% |
| Sara Rütten | 4/10 | 6185 days | 1% |
| Sabine Feiner | 10/10 | 6188 days | 2% |
| Roger & Margaret | 8/10 | 6197 days | 2% |
| Gill O'Connor | 8/10 | 6199 days | 2% |
| Kevin | 9/10 | 6268 days | 2% |
| Floren | 8/10 | 6272 days | 2% |
| Rene Schotvanger | 4/10 | 6385 days | 1% |
| ranker_41 | 5/10 | 6385 days | 1% |
| Kate | 3/10 | 6541 days | 1% |
| Bernhard | 8/10 | 6557 days | 2% |
| Walburg | 8/10 | 6560 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
-0.39% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 49 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 19 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 16 | -0.33% |
| 17 | -0.35% |
| 18 | -0.37% |
| 19 | -0.39% |
| 20 | -0.41% |
| 21 | -0.43% |
| 22 | -0.46% |
| … | … |
Balancing Adjustment
18.31% 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.