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
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
65.95%
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 | 51 days | 100% |
| Christina | 3/10 | 475 days | 48% |
| Deb Z | 2/10 | 1512 days | 5% |
| Solvejg Bjerg | 9/10 | 3348 days | 2% |
| Jaroslav Kacmar | 7/10 | 3351 days | 2% |
| Fabian Probst | 7/10 | 3371 days | 1% |
| Jonas Neumann | 6/10 | 3381 days | 1% |
| Mark | 8/10 | 3388 days | 2% |
| Alicia Speisekorn-Gil | 10/10 | 3433 days | 1% |
| Marc Perales | 3/10 | 3435 days | 1% |
| Laura Leoekloek | 8/10 | 3460 days | 1% |
| Stephan Ophelders | 6/10 | 3702 days | 1% |
| Ross Clark | 9/10 | 3708 days | 1% |
| Anna Jungclaus | 4/10 | 3711 days | 0% |
| Paul and Astrid | 8/10 | 3715 days | 1% |
| Oliver Schatz | 6/10 | 3723 days | 1% |
| Nadja | 2/10 | 3723 days | 0% |
| Wil Goes | 4/10 | 3728 days | 0% |
| D Davey | 9/10 | 3730 days | 1% |
| Sylvain Blanchet | 10/10 | 3736 days | 1% |
| Ral Pritchard | 5/10 | 3747 days | 1% |
| Sue Strebe | 6/10 | 4087 days | 0% |
| Helen Parsons | 6/10 | 4093 days | 0% |
| Ann Wilson | 7/10 | 4420 days | 1% |
| Reto | 4/10 | 4448 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4450 days | 1% |
| Marius Hoffmann | 6/10 | 4451 days | 0% |
| Lena Jensen | 3/10 | 4469 days | 0% |
| Jesper Andersen | 4/10 | 4469 days | 0% |
| David Embling | 5/10 | 4470 days | 0% |
| Angela Neville | 8/10 | 4470 days | 1% |
| Derek Knight | 8/10 | 4476 days | 1% |
| Jacqui Knight | 8/10 | 4476 days | 1% |
| Elizabeth | 7/10 | 4495 days | 1% |
| Roy Driehuis | 7/10 | 4495 days | 1% |
| AusCampa | 3/10 | 4738 days | 0% |
| Andrew Grimes | 7/10 | 4794 days | 1% |
| Lynda Quartay | 9/10 | 4794 days | 1% |
| Julian Roots | 8/10 | 4799 days | 1% |
| Lorna and Seb | 6/10 | 4802 days | 0% |
| Mary Neustroski | 5/10 | 4813 days | 0% |
| Sam Bensemann | 10/10 | 4858 days | 1% |
| Mike Edwards | 8/10 | 4874 days | 1% |
| Annie | 5/10 | 4882 days | 0% |
| Dio | 6/10 | 4891 days | 0% |
| Michel Vourbraak | 8/10 | 4905 days | 1% |
| Evelyn Mackie | 10/10 | 5157 days | 1% |
| Matthias Angela | 6/10 | 5158 days | 0% |
| Jeltje | 5/10 | 5173 days | 0% |
| Baas | 7/10 | 5173 days | 1% |
| Josef | 1/10 | 5174 days | 0% |
| Sylvia & Garrit | 1/10 | 5178 days | 0% |
| Marco Scheiber | 8/10 | 5187 days | 1% |
| Volker Neumeyer | 9/10 | 5188 days | 1% |
| Anna | 2/10 | 5191 days | 0% |
| Duncan & Ellen | 5/10 | 5209 days | 0% |
| KandJ | 1/10 | 5224 days | 0% |
| Josh | 7/10 | 5267 days | 1% |
| Ray Coombe | 8/10 | 5267 days | 1% |
| Mr & Mrs Palmer | 7/10 | 5516 days | 1% |
| John Stokes | 8/10 | 5518 days | 1% |
| Julia | 2/10 | 5520 days | 0% |
| Juerg & Denise Zuesli | 3/10 | 5523 days | 0% |
| B Kleven | 7/10 | 5524 days | 1% |
| Anita Tonks | 4/10 | 5529 days | 0% |
| Carolin Ranner | 5/10 | 5531 days | 0% |
| Kasten | 4/10 | 5532 days | 0% |
| omlo | 3/10 | 5544 days | 0% |
| David Heads | 8/10 | 5545 days | 1% |
| Irene and Thib Schneider | 8/10 | 5546 days | 1% |
| Bahner | 10/10 | 5546 days | 1% |
| Teum and Orselien | 5/10 | 5546 days | 0% |
| Daniel Bogdanowitsch | 10/10 | 5549 days | 1% |
| Julia | 7/10 | 5550 days | 1% |
| Bas Geerts | 6/10 | 5551 days | 0% |
| Barbara | 7/10 | 5551 days | 1% |
| JohnHaestad | 7/10 | 5558 days | 1% |
| Grant | 8/10 | 5816 days | 1% |
| Quin | 8/10 | 5864 days | 1% |
| Kaddi & Grego | 1/10 | 5896 days | 0% |
| Thomas & Jucki | 8/10 | 5898 days | 1% |
| Rolf X | 4/10 | 5905 days | 0% |
| Gary Ebrig | 7/10 | 5908 days | 1% |
| J Kempeneers | 4/10 | 5909 days | 0% |
| Loleit | 1/10 | 5916 days | 0% |
| vanijzendoor | 8/10 | 5918 days | 1% |
| Sinjc Grude | 3/10 | 5920 days | 0% |
| Jeremy & Sarah Rind | 8/10 | 5922 days | 1% |
| Hugli | 9/10 | 5928 days | 1% |
| W David R Thomas | 5/10 | 5928 days | 0% |
| Beute Jacob | 7/10 | 5936 days | 1% |
| J P Paulvast | 8/10 | 5937 days | 1% |
| Beute Hjel | 8/10 | 5939 days | 1% |
| middendorp | 8/10 | 5969 days | 1% |
| Linda Coats | 10/10 | 5970 days | 1% |
| johnma | 10/10 | 5974 days | 1% |
| sels | 3/10 | 5985 days | 0% |
| Anna | 6/10 | 6015 days | 0% |
| alanvn | 3/10 | 6098 days | 0% |
| richards1 | 2/10 | 6110 days | 0% |
| KarinS | 5/10 | 6222 days | 0% |
| DirkGermany | 10/10 | 6224 days | 1% |
| KatrinS | 1/10 | 6241 days | 0% |
| Lucas | 7/10 | 6246 days | 1% |
| Anna Hansson | 10/10 | 6246 days | 1% |
| Anna Hansson | 10/10 | 6246 days | 1% |
| Sara Hansson | 9/10 | 6246 days | 1% |
| BevanLisa | 7/10 | 6246 days | 1% |
| Hans | 6/10 | 6246 days | 0% |
| OdiliaF | 10/10 | 6248 days | 1% |
| Mary | 9/10 | 6254 days | 1% |
| JetteG | 5/10 | 6263 days | 0% |
| VacherD | 8/10 | 6264 days | 1% |
| Adi | 10/10 | 6278 days | 1% |
| Philippa | 9/10 | 6278 days | 1% |
| De Vries | 7/10 | 6298 days | 1% |
| Debbie Mossman | 6/10 | 6304 days | 0% |
| nsmith | 9/10 | 6382 days | 1% |
| Gray | 10/10 | 6465 days | 1% |
| fgregory | 10/10 | 6492 days | 1% |
| Stewart | 6/10 | 6612 days | 0% |
| Sara Rütten | 4/10 | 6632 days | 0% |
| Sabine Feiner | 10/10 | 6634 days | 1% |
| Roger & Margaret | 8/10 | 6643 days | 1% |
| Gill O'Connor | 8/10 | 6645 days | 1% |
| Kevin | 9/10 | 6714 days | 1% |
| Floren | 8/10 | 6718 days | 1% |
| Rene Schotvanger | 4/10 | 6831 days | 0% |
| ranker_41 | 5/10 | 6831 days | 0% |
| Kate | 3/10 | 6987 days | 0% |
| Bernhard | 8/10 | 7003 days | 1% |
| Walburg | 8/10 | 7006 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
-0.77% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 70 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 46 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 43 | -0.72% |
| 44 | -0.73% |
| 45 | -0.75% |
| 46 | -0.77% |
| 47 | -0.78% |
| 48 | -0.80% |
| 49 | -0.82% |
| … | … |
Balancing Adjustment
10.07% 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.