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
67.00%
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 | 235 days | 100% |
| Christina | 3/10 | 659 days | 43% |
| Deb Z | 2/10 | 1696 days | 3% |
| Solvejg Bjerg | 9/10 | 3532 days | 2% |
| Jaroslav Kacmar | 7/10 | 3535 days | 1% |
| Fabian Probst | 7/10 | 3555 days | 1% |
| Jonas Neumann | 6/10 | 3565 days | 1% |
| Mark | 8/10 | 3572 days | 1% |
| Alicia Speisekorn-Gil | 10/10 | 3617 days | 1% |
| Marc Perales | 3/10 | 3619 days | 1% |
| Laura Leoekloek | 8/10 | 3644 days | 1% |
| Stephan Ophelders | 6/10 | 3886 days | 1% |
| Ross Clark | 9/10 | 3892 days | 1% |
| Anna Jungclaus | 4/10 | 3895 days | 0% |
| Paul and Astrid | 8/10 | 3899 days | 1% |
| Oliver Schatz | 6/10 | 3907 days | 1% |
| Nadja | 2/10 | 3907 days | 0% |
| Wil Goes | 4/10 | 3912 days | 0% |
| D Davey | 9/10 | 3914 days | 1% |
| Sylvain Blanchet | 10/10 | 3920 days | 1% |
| Ral Pritchard | 5/10 | 3931 days | 1% |
| Sue Strebe | 6/10 | 4271 days | 0% |
| Helen Parsons | 6/10 | 4277 days | 0% |
| Ann Wilson | 7/10 | 4604 days | 1% |
| Reto | 4/10 | 4632 days | 1% |
| Glyn and Karen Farlow | 7/10 | 4634 days | 1% |
| Marius Hoffmann | 6/10 | 4635 days | 1% |
| Lena Jensen | 3/10 | 4653 days | 0% |
| Jesper Andersen | 4/10 | 4653 days | 1% |
| David Embling | 5/10 | 4654 days | 1% |
| Angela Neville | 8/10 | 4654 days | 1% |
| Derek Knight | 8/10 | 4660 days | 1% |
| Jacqui Knight | 8/10 | 4660 days | 1% |
| Elizabeth | 7/10 | 4679 days | 1% |
| Roy Driehuis | 7/10 | 4679 days | 1% |
| AusCampa | 3/10 | 4922 days | 0% |
| Andrew Grimes | 7/10 | 4978 days | 1% |
| Lynda Quartay | 9/10 | 4978 days | 1% |
| Julian Roots | 8/10 | 4983 days | 1% |
| Lorna and Seb | 6/10 | 4986 days | 1% |
| Mary Neustroski | 5/10 | 4997 days | 1% |
| Sam Bensemann | 10/10 | 5042 days | 1% |
| Mike Edwards | 8/10 | 5058 days | 1% |
| Annie | 5/10 | 5066 days | 1% |
| Dio | 6/10 | 5075 days | 1% |
| Michel Vourbraak | 8/10 | 5089 days | 1% |
| Evelyn Mackie | 10/10 | 5341 days | 1% |
| Matthias Angela | 6/10 | 5342 days | 1% |
| Jeltje | 5/10 | 5357 days | 1% |
| Baas | 7/10 | 5357 days | 1% |
| Josef | 1/10 | 5358 days | 0% |
| Sylvia & Garrit | 1/10 | 5362 days | 0% |
| Marco Scheiber | 8/10 | 5371 days | 1% |
| Volker Neumeyer | 9/10 | 5372 days | 1% |
| Anna | 2/10 | 5375 days | 0% |
| Duncan & Ellen | 5/10 | 5393 days | 1% |
| KandJ | 1/10 | 5408 days | 0% |
| Josh | 7/10 | 5451 days | 1% |
| Ray Coombe | 8/10 | 5451 days | 1% |
| Mr & Mrs Palmer | 7/10 | 5700 days | 1% |
| John Stokes | 8/10 | 5702 days | 1% |
| Julia | 2/10 | 5704 days | 0% |
| Juerg & Denise Zuesli | 3/10 | 5707 days | 0% |
| B Kleven | 7/10 | 5708 days | 1% |
| Anita Tonks | 4/10 | 5713 days | 1% |
| Carolin Ranner | 5/10 | 5715 days | 1% |
| Kasten | 4/10 | 5716 days | 1% |
| omlo | 3/10 | 5728 days | 0% |
| David Heads | 8/10 | 5729 days | 1% |
| Irene and Thib Schneider | 8/10 | 5730 days | 1% |
| Bahner | 10/10 | 5730 days | 1% |
| Teum and Orselien | 5/10 | 5730 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5733 days | 1% |
| Julia | 7/10 | 5734 days | 1% |
| Bas Geerts | 6/10 | 5735 days | 1% |
| Barbara | 7/10 | 5735 days | 1% |
| JohnHaestad | 7/10 | 5742 days | 1% |
| Grant | 8/10 | 6000 days | 1% |
| Quin | 8/10 | 6048 days | 1% |
| Kaddi & Grego | 1/10 | 6080 days | 0% |
| Thomas & Jucki | 8/10 | 6082 days | 1% |
| Rolf X | 4/10 | 6089 days | 1% |
| Gary Ebrig | 7/10 | 6092 days | 1% |
| J Kempeneers | 4/10 | 6093 days | 1% |
| Loleit | 1/10 | 6100 days | 0% |
| vanijzendoor | 8/10 | 6102 days | 1% |
| Sinjc Grude | 3/10 | 6104 days | 0% |
| Jeremy & Sarah Rind | 8/10 | 6106 days | 1% |
| Hugli | 9/10 | 6112 days | 1% |
| W David R Thomas | 5/10 | 6112 days | 1% |
| Beute Jacob | 7/10 | 6120 days | 1% |
| J P Paulvast | 8/10 | 6121 days | 1% |
| Beute Hjel | 8/10 | 6123 days | 1% |
| middendorp | 8/10 | 6153 days | 1% |
| Linda Coats | 10/10 | 6154 days | 1% |
| johnma | 10/10 | 6158 days | 1% |
| sels | 3/10 | 6169 days | 0% |
| Anna | 6/10 | 6199 days | 1% |
| alanvn | 3/10 | 6282 days | 0% |
| richards1 | 2/10 | 6294 days | 0% |
| KarinS | 5/10 | 6406 days | 1% |
| DirkGermany | 10/10 | 6408 days | 1% |
| KatrinS | 1/10 | 6425 days | 0% |
| Lucas | 7/10 | 6429 days | 1% |
| Anna Hansson | 10/10 | 6430 days | 1% |
| Anna Hansson | 10/10 | 6430 days | 1% |
| Sara Hansson | 9/10 | 6430 days | 1% |
| BevanLisa | 7/10 | 6430 days | 1% |
| Hans | 6/10 | 6430 days | 1% |
| OdiliaF | 10/10 | 6432 days | 1% |
| Mary | 9/10 | 6437 days | 1% |
| JetteG | 5/10 | 6447 days | 1% |
| VacherD | 8/10 | 6448 days | 1% |
| Adi | 10/10 | 6461 days | 1% |
| Philippa | 9/10 | 6461 days | 1% |
| De Vries | 7/10 | 6481 days | 1% |
| Debbie Mossman | 6/10 | 6487 days | 1% |
| nsmith | 9/10 | 6565 days | 1% |
| Gray | 10/10 | 6648 days | 1% |
| fgregory | 10/10 | 6675 days | 1% |
| Stewart | 6/10 | 6796 days | 1% |
| Sara Rütten | 4/10 | 6815 days | 1% |
| Sabine Feiner | 10/10 | 6818 days | 1% |
| Roger & Margaret | 8/10 | 6827 days | 1% |
| Gill O'Connor | 8/10 | 6829 days | 1% |
| Kevin | 9/10 | 6898 days | 1% |
| Floren | 8/10 | 6902 days | 1% |
| Rene Schotvanger | 4/10 | 7015 days | 1% |
| ranker_41 | 5/10 | 7015 days | 1% |
| Kate | 3/10 | 7171 days | 0% |
| Bernhard | 8/10 | 7187 days | 1% |
| Walburg | 8/10 | 7190 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
-3.69% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 56 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 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.64% |
| 198 | -3.66% |
| 199 | -3.68% |
| 200 | -3.69% |
| 201 | -3.71% |
| 202 | -3.73% |
| 203 | -3.75% |
| … | … |
Balancing Adjustment
11.45% 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.