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
66.76%
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 | 193 days | 100% |
| Christina | 3/10 | 617 days | 44% |
| Deb Z | 2/10 | 1654 days | 3% |
| Solvejg Bjerg | 9/10 | 3490 days | 2% |
| Jaroslav Kacmar | 7/10 | 3493 days | 1% |
| Fabian Probst | 7/10 | 3513 days | 1% |
| Jonas Neumann | 6/10 | 3523 days | 1% |
| Mark | 8/10 | 3530 days | 1% |
| Alicia Speisekorn-Gil | 10/10 | 3575 days | 1% |
| Marc Perales | 3/10 | 3577 days | 1% |
| Laura Leoekloek | 8/10 | 3602 days | 1% |
| Stephan Ophelders | 6/10 | 3844 days | 1% |
| Ross Clark | 9/10 | 3850 days | 1% |
| Anna Jungclaus | 4/10 | 3853 days | 0% |
| Paul and Astrid | 8/10 | 3857 days | 1% |
| Oliver Schatz | 6/10 | 3865 days | 1% |
| Nadja | 2/10 | 3865 days | 0% |
| Wil Goes | 4/10 | 3870 days | 0% |
| D Davey | 9/10 | 3872 days | 1% |
| Sylvain Blanchet | 10/10 | 3878 days | 1% |
| Ral Pritchard | 5/10 | 3889 days | 1% |
| Sue Strebe | 6/10 | 4229 days | 0% |
| Helen Parsons | 6/10 | 4235 days | 0% |
| Ann Wilson | 7/10 | 4562 days | 1% |
| Reto | 4/10 | 4590 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4592 days | 1% |
| Marius Hoffmann | 6/10 | 4593 days | 1% |
| Lena Jensen | 3/10 | 4611 days | 0% |
| Jesper Andersen | 4/10 | 4611 days | 0% |
| David Embling | 5/10 | 4612 days | 1% |
| Angela Neville | 8/10 | 4612 days | 1% |
| Derek Knight | 8/10 | 4618 days | 1% |
| Jacqui Knight | 8/10 | 4618 days | 1% |
| Elizabeth | 7/10 | 4637 days | 1% |
| Roy Driehuis | 7/10 | 4637 days | 1% |
| AusCampa | 3/10 | 4880 days | 0% |
| Andrew Grimes | 7/10 | 4936 days | 1% |
| Lynda Quartay | 9/10 | 4936 days | 1% |
| Julian Roots | 8/10 | 4941 days | 1% |
| Lorna and Seb | 6/10 | 4944 days | 1% |
| Mary Neustroski | 5/10 | 4955 days | 1% |
| Sam Bensemann | 10/10 | 5000 days | 1% |
| Mike Edwards | 8/10 | 5016 days | 1% |
| Annie | 5/10 | 5024 days | 1% |
| Dio | 6/10 | 5033 days | 1% |
| Michel Vourbraak | 8/10 | 5047 days | 1% |
| Evelyn Mackie | 10/10 | 5299 days | 1% |
| Matthias Angela | 6/10 | 5300 days | 1% |
| Jeltje | 5/10 | 5315 days | 1% |
| Baas | 7/10 | 5315 days | 1% |
| Josef | 1/10 | 5316 days | 0% |
| Sylvia & Garrit | 1/10 | 5320 days | 0% |
| Marco Scheiber | 8/10 | 5329 days | 1% |
| Volker Neumeyer | 9/10 | 5330 days | 1% |
| Anna | 2/10 | 5333 days | 0% |
| Duncan & Ellen | 5/10 | 5351 days | 1% |
| KandJ | 1/10 | 5366 days | 0% |
| Josh | 7/10 | 5409 days | 1% |
| Ray Coombe | 8/10 | 5409 days | 1% |
| Mr & Mrs Palmer | 7/10 | 5658 days | 1% |
| John Stokes | 8/10 | 5660 days | 1% |
| Julia | 2/10 | 5662 days | 0% |
| Juerg & Denise Zuesli | 3/10 | 5665 days | 0% |
| B Kleven | 7/10 | 5666 days | 1% |
| Anita Tonks | 4/10 | 5671 days | 0% |
| Carolin Ranner | 5/10 | 5673 days | 1% |
| Kasten | 4/10 | 5674 days | 0% |
| omlo | 3/10 | 5686 days | 0% |
| David Heads | 8/10 | 5687 days | 1% |
| Irene and Thib Schneider | 8/10 | 5688 days | 1% |
| Bahner | 10/10 | 5688 days | 1% |
| Teum and Orselien | 5/10 | 5688 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5691 days | 1% |
| Julia | 7/10 | 5692 days | 1% |
| Bas Geerts | 6/10 | 5693 days | 1% |
| Barbara | 7/10 | 5693 days | 1% |
| JohnHaestad | 7/10 | 5700 days | 1% |
| Grant | 8/10 | 5958 days | 1% |
| Quin | 8/10 | 6006 days | 1% |
| Kaddi & Grego | 1/10 | 6038 days | 0% |
| Thomas & Jucki | 8/10 | 6040 days | 1% |
| Rolf X | 4/10 | 6047 days | 0% |
| Gary Ebrig | 7/10 | 6050 days | 1% |
| J Kempeneers | 4/10 | 6051 days | 0% |
| Loleit | 1/10 | 6058 days | 0% |
| vanijzendoor | 8/10 | 6060 days | 1% |
| Sinjc Grude | 3/10 | 6062 days | 0% |
| Jeremy & Sarah Rind | 8/10 | 6064 days | 1% |
| Hugli | 9/10 | 6070 days | 1% |
| W David R Thomas | 5/10 | 6070 days | 1% |
| Beute Jacob | 7/10 | 6078 days | 1% |
| J P Paulvast | 8/10 | 6079 days | 1% |
| Beute Hjel | 8/10 | 6081 days | 1% |
| middendorp | 8/10 | 6111 days | 1% |
| Linda Coats | 10/10 | 6112 days | 1% |
| johnma | 10/10 | 6116 days | 1% |
| sels | 3/10 | 6127 days | 0% |
| Anna | 6/10 | 6157 days | 1% |
| alanvn | 3/10 | 6240 days | 0% |
| richards1 | 2/10 | 6252 days | 0% |
| KarinS | 5/10 | 6364 days | 1% |
| DirkGermany | 10/10 | 6366 days | 1% |
| KatrinS | 1/10 | 6383 days | 0% |
| Lucas | 7/10 | 6387 days | 1% |
| Anna Hansson | 10/10 | 6388 days | 1% |
| Anna Hansson | 10/10 | 6388 days | 1% |
| Sara Hansson | 9/10 | 6388 days | 1% |
| BevanLisa | 7/10 | 6388 days | 1% |
| Hans | 6/10 | 6388 days | 1% |
| OdiliaF | 10/10 | 6390 days | 1% |
| Mary | 9/10 | 6395 days | 1% |
| JetteG | 5/10 | 6405 days | 1% |
| VacherD | 8/10 | 6406 days | 1% |
| Adi | 10/10 | 6419 days | 1% |
| Philippa | 9/10 | 6419 days | 1% |
| De Vries | 7/10 | 6439 days | 1% |
| Debbie Mossman | 6/10 | 6445 days | 1% |
| nsmith | 9/10 | 6523 days | 1% |
| Gray | 10/10 | 6606 days | 1% |
| fgregory | 10/10 | 6633 days | 1% |
| Stewart | 6/10 | 6754 days | 1% |
| Sara Rütten | 4/10 | 6773 days | 0% |
| Sabine Feiner | 10/10 | 6776 days | 1% |
| Roger & Margaret | 8/10 | 6785 days | 1% |
| Gill O'Connor | 8/10 | 6787 days | 1% |
| Kevin | 9/10 | 6856 days | 1% |
| Floren | 8/10 | 6860 days | 1% |
| Rene Schotvanger | 4/10 | 6973 days | 0% |
| ranker_41 | 5/10 | 6973 days | 1% |
| Kate | 3/10 | 7129 days | 0% |
| Bernhard | 8/10 | 7145 days | 1% |
| Walburg | 8/10 | 7148 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
-2.62% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 84 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 187 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 184 | -2.58% |
| 185 | -2.60% |
| 186 | -2.61% |
| 187 | -2.62% |
| 188 | -2.64% |
| 189 | -2.65% |
| 190 | -2.67% |
| … | … |
Balancing Adjustment
10.81% 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.