G'day, 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
65.84%
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 | 31 days | 100% |
| Christina | 3/10 | 455 days | 49% |
| Deb Z | 2/10 | 1492 days | 5% |
| Solvejg Bjerg | 9/10 | 3328 days | 2% |
| Jaroslav Kacmar | 7/10 | 3331 days | 2% |
| Fabian Probst | 7/10 | 3351 days | 2% |
| Jonas Neumann | 6/10 | 3361 days | 1% |
| Mark | 8/10 | 3368 days | 2% |
| Alicia Speisekorn-Gil | 10/10 | 3413 days | 2% |
| Marc Perales | 3/10 | 3415 days | 1% |
| Laura Leoekloek | 8/10 | 3440 days | 1% |
| Stephan Ophelders | 6/10 | 3682 days | 1% |
| Ross Clark | 9/10 | 3688 days | 1% |
| Anna Jungclaus | 4/10 | 3691 days | 0% |
| Paul and Astrid | 8/10 | 3695 days | 1% |
| Oliver Schatz | 6/10 | 3703 days | 1% |
| Nadja | 2/10 | 3703 days | 0% |
| Wil Goes | 4/10 | 3708 days | 0% |
| D Davey | 9/10 | 3710 days | 1% |
| Sylvain Blanchet | 10/10 | 3716 days | 1% |
| Ral Pritchard | 5/10 | 3727 days | 1% |
| Sue Strebe | 6/10 | 4067 days | 0% |
| Helen Parsons | 6/10 | 4073 days | 0% |
| Ann Wilson | 7/10 | 4400 days | 1% |
| Reto | 4/10 | 4428 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4430 days | 1% |
| Marius Hoffmann | 6/10 | 4431 days | 0% |
| Lena Jensen | 3/10 | 4449 days | 0% |
| Jesper Andersen | 4/10 | 4449 days | 0% |
| David Embling | 5/10 | 4450 days | 0% |
| Angela Neville | 8/10 | 4450 days | 1% |
| Derek Knight | 8/10 | 4456 days | 1% |
| Jacqui Knight | 8/10 | 4456 days | 1% |
| Elizabeth | 7/10 | 4475 days | 1% |
| Roy Driehuis | 7/10 | 4475 days | 1% |
| AusCampa | 3/10 | 4718 days | 0% |
| Andrew Grimes | 7/10 | 4774 days | 1% |
| Lynda Quartay | 9/10 | 4774 days | 1% |
| Julian Roots | 8/10 | 4779 days | 1% |
| Lorna and Seb | 6/10 | 4782 days | 0% |
| Mary Neustroski | 5/10 | 4793 days | 0% |
| Sam Bensemann | 10/10 | 4838 days | 1% |
| Mike Edwards | 8/10 | 4854 days | 1% |
| Annie | 5/10 | 4862 days | 0% |
| Dio | 6/10 | 4871 days | 0% |
| Michel Vourbraak | 8/10 | 4885 days | 1% |
| Evelyn Mackie | 10/10 | 5137 days | 1% |
| Matthias Angela | 6/10 | 5138 days | 0% |
| Jeltje | 5/10 | 5153 days | 0% |
| Baas | 7/10 | 5153 days | 1% |
| Josef | 1/10 | 5154 days | 0% |
| Sylvia & Garrit | 1/10 | 5158 days | 0% |
| Marco Scheiber | 8/10 | 5167 days | 1% |
| Volker Neumeyer | 9/10 | 5168 days | 1% |
| Anna | 2/10 | 5171 days | 0% |
| Duncan & Ellen | 5/10 | 5189 days | 0% |
| KandJ | 1/10 | 5204 days | 0% |
| Josh | 7/10 | 5247 days | 1% |
| Ray Coombe | 8/10 | 5247 days | 1% |
| Mr & Mrs Palmer | 7/10 | 5496 days | 1% |
| John Stokes | 8/10 | 5498 days | 1% |
| Julia | 2/10 | 5500 days | 0% |
| Juerg & Denise Zuesli | 3/10 | 5503 days | 0% |
| B Kleven | 7/10 | 5504 days | 1% |
| Anita Tonks | 4/10 | 5509 days | 0% |
| Carolin Ranner | 5/10 | 5511 days | 0% |
| Kasten | 4/10 | 5512 days | 0% |
| omlo | 3/10 | 5524 days | 0% |
| David Heads | 8/10 | 5525 days | 1% |
| Irene and Thib Schneider | 8/10 | 5526 days | 1% |
| Bahner | 10/10 | 5526 days | 1% |
| Teum and Orselien | 5/10 | 5526 days | 0% |
| Daniel Bogdanowitsch | 10/10 | 5529 days | 1% |
| Julia | 7/10 | 5530 days | 1% |
| Bas Geerts | 6/10 | 5531 days | 0% |
| Barbara | 7/10 | 5531 days | 1% |
| JohnHaestad | 7/10 | 5538 days | 1% |
| Grant | 8/10 | 5796 days | 1% |
| Quin | 8/10 | 5844 days | 1% |
| Kaddi & Grego | 1/10 | 5876 days | 0% |
| Thomas & Jucki | 8/10 | 5878 days | 1% |
| Rolf X | 4/10 | 5885 days | 0% |
| Gary Ebrig | 7/10 | 5888 days | 1% |
| J Kempeneers | 4/10 | 5889 days | 0% |
| Loleit | 1/10 | 5896 days | 0% |
| vanijzendoor | 8/10 | 5898 days | 1% |
| Sinjc Grude | 3/10 | 5900 days | 0% |
| Jeremy & Sarah Rind | 8/10 | 5902 days | 1% |
| Hugli | 9/10 | 5908 days | 1% |
| W David R Thomas | 5/10 | 5908 days | 0% |
| Beute Jacob | 7/10 | 5916 days | 1% |
| J P Paulvast | 8/10 | 5917 days | 1% |
| Beute Hjel | 8/10 | 5919 days | 1% |
| middendorp | 8/10 | 5949 days | 1% |
| Linda Coats | 10/10 | 5950 days | 1% |
| johnma | 10/10 | 5954 days | 1% |
| sels | 3/10 | 5965 days | 0% |
| Anna | 6/10 | 5995 days | 0% |
| alanvn | 3/10 | 6078 days | 0% |
| richards1 | 2/10 | 6090 days | 0% |
| KarinS | 5/10 | 6202 days | 0% |
| DirkGermany | 10/10 | 6204 days | 1% |
| KatrinS | 1/10 | 6221 days | 0% |
| Lucas | 7/10 | 6225 days | 1% |
| Anna Hansson | 10/10 | 6226 days | 1% |
| Anna Hansson | 10/10 | 6226 days | 1% |
| Sara Hansson | 9/10 | 6226 days | 1% |
| BevanLisa | 7/10 | 6226 days | 1% |
| Hans | 6/10 | 6226 days | 0% |
| OdiliaF | 10/10 | 6228 days | 1% |
| Mary | 9/10 | 6233 days | 1% |
| JetteG | 5/10 | 6243 days | 0% |
| VacherD | 8/10 | 6244 days | 1% |
| Adi | 10/10 | 6257 days | 1% |
| Philippa | 9/10 | 6257 days | 1% |
| De Vries | 7/10 | 6277 days | 1% |
| Debbie Mossman | 6/10 | 6284 days | 0% |
| nsmith | 9/10 | 6361 days | 1% |
| Gray | 10/10 | 6445 days | 1% |
| fgregory | 10/10 | 6472 days | 1% |
| Stewart | 6/10 | 6592 days | 0% |
| Sara Rütten | 4/10 | 6611 days | 0% |
| Sabine Feiner | 10/10 | 6614 days | 1% |
| Roger & Margaret | 8/10 | 6623 days | 1% |
| Gill O'Connor | 8/10 | 6625 days | 1% |
| Kevin | 9/10 | 6694 days | 1% |
| Floren | 8/10 | 6698 days | 1% |
| Rene Schotvanger | 4/10 | 6811 days | 0% |
| ranker_41 | 5/10 | 6811 days | 0% |
| Kate | 3/10 | 6967 days | 0% |
| Bernhard | 8/10 | 6983 days | 1% |
| Walburg | 8/10 | 6986 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
-0.47% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 60 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 25 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 22 | -0.41% |
| 23 | -0.43% |
| 24 | -0.45% |
| 25 | -0.47% |
| 26 | -0.49% |
| 27 | -0.50% |
| 28 | -0.52% |
| … | … |
Balancing Adjustment
9.95% 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.