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 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
65.72%
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 | 11 days | 100% |
| Christina | 3/10 | 435 days | 49% |
| Deb Z | 2/10 | 1472 days | 5% |
| Solvejg Bjerg | 9/10 | 3308 days | 2% |
| Jaroslav Kacmar | 7/10 | 3311 days | 2% |
| Fabian Probst | 7/10 | 3331 days | 2% |
| Jonas Neumann | 6/10 | 3341 days | 1% |
| Mark | 8/10 | 3348 days | 2% |
| Alicia Speisekorn-Gil | 10/10 | 3393 days | 2% |
| Marc Perales | 3/10 | 3395 days | 1% |
| Laura Leoekloek | 8/10 | 3420 days | 1% |
| Stephan Ophelders | 6/10 | 3662 days | 1% |
| Ross Clark | 9/10 | 3668 days | 1% |
| Anna Jungclaus | 4/10 | 3671 days | 1% |
| Paul and Astrid | 8/10 | 3675 days | 1% |
| Oliver Schatz | 6/10 | 3683 days | 1% |
| Nadja | 2/10 | 3683 days | 0% |
| Wil Goes | 4/10 | 3688 days | 0% |
| D Davey | 9/10 | 3690 days | 1% |
| Sylvain Blanchet | 10/10 | 3696 days | 1% |
| Ral Pritchard | 5/10 | 3707 days | 1% |
| Sue Strebe | 6/10 | 4047 days | 0% |
| Helen Parsons | 6/10 | 4053 days | 0% |
| Ann Wilson | 7/10 | 4380 days | 1% |
| Reto | 4/10 | 4408 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4410 days | 1% |
| Marius Hoffmann | 6/10 | 4411 days | 0% |
| Lena Jensen | 3/10 | 4429 days | 0% |
| Jesper Andersen | 4/10 | 4429 days | 0% |
| David Embling | 5/10 | 4430 days | 0% |
| Angela Neville | 8/10 | 4430 days | 1% |
| Derek Knight | 8/10 | 4436 days | 1% |
| Jacqui Knight | 8/10 | 4436 days | 1% |
| Elizabeth | 7/10 | 4455 days | 1% |
| Roy Driehuis | 7/10 | 4455 days | 1% |
| AusCampa | 3/10 | 4698 days | 0% |
| Andrew Grimes | 7/10 | 4754 days | 1% |
| Lynda Quartay | 9/10 | 4754 days | 1% |
| Julian Roots | 8/10 | 4759 days | 1% |
| Lorna and Seb | 6/10 | 4762 days | 0% |
| Mary Neustroski | 5/10 | 4773 days | 0% |
| Sam Bensemann | 10/10 | 4818 days | 1% |
| Mike Edwards | 8/10 | 4834 days | 1% |
| Annie | 5/10 | 4842 days | 0% |
| Dio | 6/10 | 4851 days | 0% |
| Michel Vourbraak | 8/10 | 4865 days | 1% |
| Evelyn Mackie | 10/10 | 5117 days | 1% |
| Matthias Angela | 6/10 | 5118 days | 0% |
| Jeltje | 5/10 | 5133 days | 0% |
| Baas | 7/10 | 5133 days | 1% |
| Josef | 1/10 | 5134 days | 0% |
| Sylvia & Garrit | 1/10 | 5138 days | 0% |
| Marco Scheiber | 8/10 | 5147 days | 1% |
| Volker Neumeyer | 9/10 | 5148 days | 1% |
| Anna | 2/10 | 5151 days | 0% |
| Duncan & Ellen | 5/10 | 5169 days | 0% |
| KandJ | 1/10 | 5184 days | 0% |
| Josh | 7/10 | 5227 days | 1% |
| Ray Coombe | 8/10 | 5227 days | 1% |
| Mr & Mrs Palmer | 7/10 | 5476 days | 1% |
| John Stokes | 8/10 | 5478 days | 1% |
| Julia | 2/10 | 5480 days | 0% |
| Juerg & Denise Zuesli | 3/10 | 5483 days | 0% |
| B Kleven | 7/10 | 5484 days | 1% |
| Anita Tonks | 4/10 | 5489 days | 0% |
| Carolin Ranner | 5/10 | 5491 days | 0% |
| Kasten | 4/10 | 5492 days | 0% |
| omlo | 3/10 | 5504 days | 0% |
| David Heads | 8/10 | 5505 days | 1% |
| Irene and Thib Schneider | 8/10 | 5506 days | 1% |
| Bahner | 10/10 | 5506 days | 1% |
| Teum and Orselien | 5/10 | 5506 days | 0% |
| Daniel Bogdanowitsch | 10/10 | 5509 days | 1% |
| Julia | 7/10 | 5510 days | 1% |
| Bas Geerts | 6/10 | 5511 days | 0% |
| Barbara | 7/10 | 5511 days | 1% |
| JohnHaestad | 7/10 | 5518 days | 1% |
| Grant | 8/10 | 5776 days | 1% |
| Quin | 8/10 | 5824 days | 1% |
| Kaddi & Grego | 1/10 | 5856 days | 0% |
| Thomas & Jucki | 8/10 | 5858 days | 1% |
| Rolf X | 4/10 | 5865 days | 0% |
| Gary Ebrig | 7/10 | 5868 days | 1% |
| J Kempeneers | 4/10 | 5869 days | 0% |
| Loleit | 1/10 | 5876 days | 0% |
| vanijzendoor | 8/10 | 5878 days | 1% |
| Sinjc Grude | 3/10 | 5880 days | 0% |
| Jeremy & Sarah Rind | 8/10 | 5882 days | 1% |
| Hugli | 9/10 | 5888 days | 1% |
| W David R Thomas | 5/10 | 5888 days | 0% |
| Beute Jacob | 7/10 | 5896 days | 1% |
| J P Paulvast | 8/10 | 5897 days | 1% |
| Beute Hjel | 8/10 | 5899 days | 1% |
| middendorp | 8/10 | 5929 days | 1% |
| Linda Coats | 10/10 | 5930 days | 1% |
| johnma | 10/10 | 5934 days | 1% |
| sels | 3/10 | 5945 days | 0% |
| Anna | 6/10 | 5975 days | 0% |
| alanvn | 3/10 | 6058 days | 0% |
| richards1 | 2/10 | 6070 days | 0% |
| KarinS | 5/10 | 6182 days | 0% |
| DirkGermany | 10/10 | 6184 days | 1% |
| KatrinS | 1/10 | 6201 days | 0% |
| Lucas | 7/10 | 6205 days | 1% |
| Anna Hansson | 10/10 | 6206 days | 1% |
| Anna Hansson | 10/10 | 6206 days | 1% |
| Sara Hansson | 9/10 | 6206 days | 1% |
| BevanLisa | 7/10 | 6206 days | 1% |
| Hans | 6/10 | 6206 days | 0% |
| OdiliaF | 10/10 | 6208 days | 1% |
| Mary | 9/10 | 6213 days | 1% |
| JetteG | 5/10 | 6223 days | 0% |
| VacherD | 8/10 | 6224 days | 1% |
| Adi | 10/10 | 6237 days | 1% |
| Philippa | 9/10 | 6237 days | 1% |
| De Vries | 7/10 | 6257 days | 1% |
| Debbie Mossman | 6/10 | 6263 days | 0% |
| nsmith | 9/10 | 6341 days | 1% |
| Gray | 10/10 | 6424 days | 1% |
| fgregory | 10/10 | 6451 days | 1% |
| Stewart | 6/10 | 6572 days | 0% |
| Sara Rütten | 4/10 | 6591 days | 0% |
| Sabine Feiner | 10/10 | 6594 days | 1% |
| Roger & Margaret | 8/10 | 6603 days | 1% |
| Gill O'Connor | 8/10 | 6605 days | 1% |
| Kevin | 9/10 | 6674 days | 1% |
| Floren | 8/10 | 6678 days | 1% |
| Rene Schotvanger | 4/10 | 6791 days | 0% |
| ranker_41 | 5/10 | 6791 days | 0% |
| Kate | 3/10 | 6947 days | 0% |
| Bernhard | 8/10 | 6963 days | 1% |
| Walburg | 8/10 | 6966 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
-0.10% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 5 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 2 | -0.04% |
| 3 | -0.06% |
| 4 | -0.08% |
| 5 | -0.10% |
| 6 | -0.12% |
| 7 | -0.14% |
| 8 | -0.16% |
| … | … |
Balancing Adjustment
9.78% 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.