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.
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
66.54%
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 | 152 days | 100% |
| Christina | 3/10 | 576 days | 45% |
| Deb Z | 2/10 | 1613 days | 3% |
| Solvejg Bjerg | 9/10 | 3449 days | 2% |
| Jaroslav Kacmar | 7/10 | 3452 days | 1% |
| Fabian Probst | 7/10 | 3472 days | 1% |
| Jonas Neumann | 6/10 | 3482 days | 1% |
| Mark | 8/10 | 3489 days | 1% |
| Alicia Speisekorn-Gil | 10/10 | 3534 days | 1% |
| Marc Perales | 3/10 | 3536 days | 1% |
| Laura Leoekloek | 8/10 | 3561 days | 1% |
| Stephan Ophelders | 6/10 | 3803 days | 1% |
| Ross Clark | 9/10 | 3809 days | 1% |
| Anna Jungclaus | 4/10 | 3812 days | 0% |
| Paul and Astrid | 8/10 | 3816 days | 1% |
| Oliver Schatz | 6/10 | 3824 days | 1% |
| Nadja | 2/10 | 3824 days | 0% |
| Wil Goes | 4/10 | 3829 days | 0% |
| D Davey | 9/10 | 3831 days | 1% |
| Sylvain Blanchet | 10/10 | 3837 days | 1% |
| Ral Pritchard | 5/10 | 3848 days | 0% |
| Sue Strebe | 6/10 | 4188 days | 0% |
| Helen Parsons | 6/10 | 4194 days | 0% |
| Ann Wilson | 7/10 | 4521 days | 1% |
| Reto | 4/10 | 4549 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4551 days | 1% |
| Marius Hoffmann | 6/10 | 4552 days | 1% |
| Lena Jensen | 3/10 | 4570 days | 0% |
| Jesper Andersen | 4/10 | 4570 days | 0% |
| David Embling | 5/10 | 4571 days | 0% |
| Angela Neville | 8/10 | 4571 days | 1% |
| Derek Knight | 8/10 | 4577 days | 1% |
| Jacqui Knight | 8/10 | 4577 days | 1% |
| Elizabeth | 7/10 | 4596 days | 1% |
| Roy Driehuis | 7/10 | 4596 days | 1% |
| AusCampa | 3/10 | 4839 days | 0% |
| Andrew Grimes | 7/10 | 4895 days | 1% |
| Lynda Quartay | 9/10 | 4895 days | 1% |
| Julian Roots | 8/10 | 4900 days | 1% |
| Lorna and Seb | 6/10 | 4903 days | 1% |
| Mary Neustroski | 5/10 | 4914 days | 0% |
| Sam Bensemann | 10/10 | 4959 days | 1% |
| Mike Edwards | 8/10 | 4975 days | 1% |
| Annie | 5/10 | 4983 days | 0% |
| Dio | 6/10 | 4992 days | 1% |
| Michel Vourbraak | 8/10 | 5006 days | 1% |
| Evelyn Mackie | 10/10 | 5258 days | 1% |
| Matthias Angela | 6/10 | 5259 days | 1% |
| Jeltje | 5/10 | 5274 days | 0% |
| Baas | 7/10 | 5274 days | 1% |
| Josef | 1/10 | 5275 days | 0% |
| Sylvia & Garrit | 1/10 | 5279 days | 0% |
| Marco Scheiber | 8/10 | 5288 days | 1% |
| Volker Neumeyer | 9/10 | 5289 days | 1% |
| Anna | 2/10 | 5292 days | 0% |
| Duncan & Ellen | 5/10 | 5310 days | 0% |
| KandJ | 1/10 | 5325 days | 0% |
| Josh | 7/10 | 5368 days | 1% |
| Ray Coombe | 8/10 | 5368 days | 1% |
| Mr & Mrs Palmer | 7/10 | 5617 days | 1% |
| John Stokes | 8/10 | 5619 days | 1% |
| Julia | 2/10 | 5621 days | 0% |
| Juerg & Denise Zuesli | 3/10 | 5624 days | 0% |
| B Kleven | 7/10 | 5625 days | 1% |
| Anita Tonks | 4/10 | 5630 days | 0% |
| Carolin Ranner | 5/10 | 5632 days | 0% |
| Kasten | 4/10 | 5633 days | 0% |
| omlo | 3/10 | 5645 days | 0% |
| David Heads | 8/10 | 5646 days | 1% |
| Irene and Thib Schneider | 8/10 | 5647 days | 1% |
| Bahner | 10/10 | 5647 days | 1% |
| Teum and Orselien | 5/10 | 5647 days | 0% |
| Daniel Bogdanowitsch | 10/10 | 5650 days | 1% |
| Julia | 7/10 | 5651 days | 1% |
| Bas Geerts | 6/10 | 5652 days | 1% |
| Barbara | 7/10 | 5652 days | 1% |
| JohnHaestad | 7/10 | 5659 days | 1% |
| Grant | 8/10 | 5917 days | 1% |
| Quin | 8/10 | 5965 days | 1% |
| Kaddi & Grego | 1/10 | 5997 days | 0% |
| Thomas & Jucki | 8/10 | 5999 days | 1% |
| Rolf X | 4/10 | 6006 days | 0% |
| Gary Ebrig | 7/10 | 6009 days | 1% |
| J Kempeneers | 4/10 | 6010 days | 0% |
| Loleit | 1/10 | 6017 days | 0% |
| vanijzendoor | 8/10 | 6019 days | 1% |
| Sinjc Grude | 3/10 | 6021 days | 0% |
| Jeremy & Sarah Rind | 8/10 | 6023 days | 1% |
| Hugli | 9/10 | 6029 days | 1% |
| W David R Thomas | 5/10 | 6029 days | 0% |
| Beute Jacob | 7/10 | 6037 days | 1% |
| J P Paulvast | 8/10 | 6038 days | 1% |
| Beute Hjel | 8/10 | 6040 days | 1% |
| middendorp | 8/10 | 6070 days | 1% |
| Linda Coats | 10/10 | 6071 days | 1% |
| johnma | 10/10 | 6075 days | 1% |
| sels | 3/10 | 6086 days | 0% |
| Anna | 6/10 | 6116 days | 1% |
| alanvn | 3/10 | 6199 days | 0% |
| richards1 | 2/10 | 6211 days | 0% |
| KarinS | 5/10 | 6323 days | 0% |
| DirkGermany | 10/10 | 6325 days | 1% |
| KatrinS | 1/10 | 6342 days | 0% |
| Lucas | 7/10 | 6346 days | 1% |
| Anna Hansson | 10/10 | 6347 days | 1% |
| Anna Hansson | 10/10 | 6347 days | 1% |
| Sara Hansson | 9/10 | 6347 days | 1% |
| BevanLisa | 7/10 | 6347 days | 1% |
| Hans | 6/10 | 6347 days | 1% |
| OdiliaF | 10/10 | 6349 days | 1% |
| Mary | 9/10 | 6354 days | 1% |
| JetteG | 5/10 | 6364 days | 0% |
| VacherD | 8/10 | 6365 days | 1% |
| Adi | 10/10 | 6378 days | 1% |
| Philippa | 9/10 | 6378 days | 1% |
| De Vries | 7/10 | 6398 days | 1% |
| Debbie Mossman | 6/10 | 6405 days | 1% |
| nsmith | 9/10 | 6482 days | 1% |
| Gray | 10/10 | 6565 days | 1% |
| fgregory | 10/10 | 6592 days | 1% |
| Stewart | 6/10 | 6713 days | 1% |
| Sara Rütten | 4/10 | 6732 days | 0% |
| Sabine Feiner | 10/10 | 6735 days | 1% |
| Roger & Margaret | 8/10 | 6744 days | 1% |
| Gill O'Connor | 8/10 | 6746 days | 1% |
| Kevin | 9/10 | 6815 days | 1% |
| Floren | 8/10 | 6819 days | 1% |
| Rene Schotvanger | 4/10 | 6932 days | 0% |
| ranker_41 | 5/10 | 6932 days | 0% |
| Kate | 3/10 | 7088 days | 0% |
| Bernhard | 8/10 | 7104 days | 1% |
| Walburg | 8/10 | 7107 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
-1.53% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 123 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 146 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 143 | -1.50% |
| 144 | -1.51% |
| 145 | -1.52% |
| 146 | -1.53% |
| 147 | -1.54% |
| 148 | -1.55% |
| 149 | -1.56% |
| … | … |
Balancing Adjustment
10.21% 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.