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
131 Valid Reviews
The Buller Gorge Swingbridge experience has a total of 133 reviews. There are 131 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 131 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 16 |
|
12% |
| 9/10 | 11 |
|
8% |
| 8/10 | 28 |
|
21% |
| 7/10 | 19 |
|
15% |
| 6/10 | 14 |
|
11% |
| 5/10 | 12 |
|
9% |
| 4/10 | 10 |
|
8% |
| 3/10 | 10 |
|
8% |
| 2/10 | 5 |
|
4% |
| 1/10 | 6 |
|
5% |
64.58% Average
The raw data average (mean) for all the Buller Gorge Swingbridge valid reviews is 64.58% and is based on 131 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 131 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
56.66%
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 |
|---|---|---|---|
| Christina | 3/10 | 340 days | 100% |
| Deb Z | 2/10 | 1377 days | 15% |
| Solvejg Bjerg | 9/10 | 3213 days | 4% |
| Jaroslav Kacmar | 7/10 | 3216 days | 4% |
| Fabian Probst | 7/10 | 3236 days | 4% |
| Jonas Neumann | 6/10 | 3246 days | 4% |
| Mark | 8/10 | 3253 days | 4% |
| Alicia Speisekorn-Gil | 10/10 | 3298 days | 4% |
| Marc Perales | 3/10 | 3300 days | 2% |
| Laura Leoekloek | 8/10 | 3325 days | 4% |
| Stephan Ophelders | 6/10 | 3567 days | 3% |
| Ross Clark | 9/10 | 3573 days | 3% |
| Anna Jungclaus | 4/10 | 3576 days | 2% |
| Paul and Astrid | 8/10 | 3580 days | 3% |
| Oliver Schatz | 6/10 | 3588 days | 3% |
| Nadja | 2/10 | 3588 days | 1% |
| Wil Goes | 4/10 | 3593 days | 2% |
| D Davey | 9/10 | 3595 days | 3% |
| Sylvain Blanchet | 10/10 | 3601 days | 3% |
| Ral Pritchard | 5/10 | 3612 days | 2% |
| Sue Strebe | 6/10 | 3952 days | 1% |
| Helen Parsons | 6/10 | 3958 days | 1% |
| Ann Wilson | 7/10 | 4285 days | 0% |
| Reto | 4/10 | 4313 days | 0% |
| Glyn and Karen Farlow | 7/10 | 4315 days | 0% |
| Marius Hoffmann | 6/10 | 4316 days | 0% |
| Lena Jensen | 3/10 | 4334 days | 0% |
| Jesper Andersen | 4/10 | 4334 days | 0% |
| David Embling | 5/10 | 4335 days | 0% |
| Angela Neville | 8/10 | 4335 days | 0% |
| Derek Knight | 8/10 | 4341 days | 0% |
| Jacqui Knight | 8/10 | 4341 days | 0% |
| Elizabeth | 7/10 | 4360 days | 0% |
| Roy Driehuis | 7/10 | 4360 days | 0% |
| AusCampa | 3/10 | 4603 days | 1% |
| Andrew Grimes | 7/10 | 4659 days | 2% |
| Lynda Quartay | 9/10 | 4659 days | 2% |
| Julian Roots | 8/10 | 4664 days | 2% |
| Lorna and Seb | 6/10 | 4667 days | 2% |
| Mary Neustroski | 5/10 | 4678 days | 1% |
| Sam Bensemann | 10/10 | 4723 days | 2% |
| Mike Edwards | 8/10 | 4739 days | 2% |
| Annie | 5/10 | 4747 days | 1% |
| Dio | 6/10 | 4756 days | 2% |
| Michel Vourbraak | 8/10 | 4770 days | 2% |
| Evelyn Mackie | 10/10 | 5022 days | 2% |
| Matthias Angela | 6/10 | 5023 days | 2% |
| Jeltje | 5/10 | 5038 days | 1% |
| Baas | 7/10 | 5038 days | 2% |
| Josef | 1/10 | 5039 days | 1% |
| Sylvia & Garrit | 1/10 | 5043 days | 1% |
| Marco Scheiber | 8/10 | 5052 days | 2% |
| Volker Neumeyer | 9/10 | 5053 days | 2% |
| Anna | 2/10 | 5056 days | 1% |
| Duncan & Ellen | 5/10 | 5074 days | 1% |
| KandJ | 1/10 | 5089 days | 1% |
| Josh | 7/10 | 5132 days | 2% |
| Ray Coombe | 8/10 | 5132 days | 2% |
| Mr & Mrs Palmer | 7/10 | 5381 days | 2% |
| John Stokes | 8/10 | 5383 days | 2% |
| Julia | 2/10 | 5385 days | 1% |
| Juerg & Denise Zuesli | 3/10 | 5388 days | 1% |
| B Kleven | 7/10 | 5389 days | 2% |
| Anita Tonks | 4/10 | 5394 days | 1% |
| Carolin Ranner | 5/10 | 5396 days | 1% |
| Kasten | 4/10 | 5397 days | 1% |
| omlo | 3/10 | 5409 days | 1% |
| David Heads | 8/10 | 5410 days | 2% |
| Irene and Thib Schneider | 8/10 | 5411 days | 2% |
| Bahner | 10/10 | 5411 days | 2% |
| Teum and Orselien | 5/10 | 5411 days | 1% |
| Daniel Bogdanowitsch | 10/10 | 5414 days | 2% |
| Julia | 7/10 | 5415 days | 2% |
| Bas Geerts | 6/10 | 5416 days | 2% |
| Barbara | 7/10 | 5416 days | 2% |
| JohnHaestad | 7/10 | 5423 days | 2% |
| Grant | 8/10 | 5681 days | 2% |
| Quin | 8/10 | 5729 days | 2% |
| Kaddi & Grego | 1/10 | 5761 days | 1% |
| Thomas & Jucki | 8/10 | 5763 days | 2% |
| Rolf X | 4/10 | 5770 days | 1% |
| Gary Ebrig | 7/10 | 5773 days | 2% |
| J Kempeneers | 4/10 | 5774 days | 1% |
| Loleit | 1/10 | 5781 days | 1% |
| vanijzendoor | 8/10 | 5783 days | 2% |
| Sinjc Grude | 3/10 | 5785 days | 1% |
| Jeremy & Sarah Rind | 8/10 | 5787 days | 2% |
| Hugli | 9/10 | 5793 days | 2% |
| W David R Thomas | 5/10 | 5793 days | 1% |
| Beute Jacob | 7/10 | 5801 days | 2% |
| J P Paulvast | 8/10 | 5802 days | 2% |
| Beute Hjel | 8/10 | 5804 days | 2% |
| middendorp | 8/10 | 5834 days | 2% |
| Linda Coats | 10/10 | 5835 days | 2% |
| johnma | 10/10 | 5839 days | 2% |
| sels | 3/10 | 5850 days | 1% |
| Anna | 6/10 | 5880 days | 2% |
| alanvn | 3/10 | 5963 days | 1% |
| richards1 | 2/10 | 5975 days | 1% |
| KarinS | 5/10 | 6087 days | 1% |
| DirkGermany | 10/10 | 6089 days | 2% |
| KatrinS | 1/10 | 6106 days | 1% |
| Lucas | 7/10 | 6110 days | 2% |
| Anna Hansson | 10/10 | 6111 days | 2% |
| Anna Hansson | 10/10 | 6111 days | 2% |
| Sara Hansson | 9/10 | 6111 days | 2% |
| BevanLisa | 7/10 | 6111 days | 2% |
| Hans | 6/10 | 6111 days | 2% |
| OdiliaF | 10/10 | 6113 days | 2% |
| Mary | 9/10 | 6118 days | 2% |
| JetteG | 5/10 | 6128 days | 1% |
| VacherD | 8/10 | 6129 days | 2% |
| Adi | 10/10 | 6142 days | 2% |
| Philippa | 9/10 | 6142 days | 2% |
| De Vries | 7/10 | 6162 days | 2% |
| Debbie Mossman | 6/10 | 6169 days | 2% |
| nsmith | 9/10 | 6246 days | 2% |
| Gray | 10/10 | 6329 days | 2% |
| fgregory | 10/10 | 6356 days | 2% |
| Stewart | 6/10 | 6477 days | 2% |
| Sara Rütten | 4/10 | 6496 days | 1% |
| Sabine Feiner | 10/10 | 6499 days | 2% |
| Roger & Margaret | 8/10 | 6508 days | 2% |
| Gill O'Connor | 8/10 | 6510 days | 2% |
| Kevin | 9/10 | 6579 days | 2% |
| Floren | 8/10 | 6583 days | 2% |
| Rene Schotvanger | 4/10 | 6696 days | 1% |
| ranker_41 | 5/10 | 6696 days | 1% |
| Kate | 3/10 | 6852 days | 1% |
| Bernhard | 8/10 | 6868 days | 2% |
| Walburg | 8/10 | 6871 days | 2% |
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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
19.94% 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
73%
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.