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 132 reviews. There are 131 valid reviews that are included when calculating the ranking score and 1 invalid review 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 | 9 |
|
7% |
| 2/10 | 6 |
|
5% |
| 1/10 | 6 |
|
5% |
64.50% Average
The raw data average (mean) for all the Buller Gorge Swingbridge valid reviews is 64.50% 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
119 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 119 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 119 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 | 5 |
|
4% |
| 1/10 | 5 |
|
4% |
65.21% Average
The raw data average (mean) for all the Buller Gorge Swingbridge face-to-face reviews is 65.21% and is based on 119 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
63.60%
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 |
|---|---|---|---|
| Deb Z | 2/10 | 997 days | 100% |
| Solvejg Bjerg | 9/10 | 2833 days | 15% |
| Jaroslav Kacmar | 7/10 | 2836 days | 14% |
| Fabian Probst | 7/10 | 2856 days | 14% |
| Jonas Neumann | 6/10 | 2866 days | 13% |
| Mark | 8/10 | 2873 days | 14% |
| Alicia Speisekorn-Gil | 10/10 | 2918 days | 14% |
| Marc Perales | 3/10 | 2920 days | 8% |
| Laura Leoekloek | 8/10 | 2945 days | 14% |
| Stephan Ophelders | 6/10 | 3187 days | 10% |
| Ross Clark | 9/10 | 3193 days | 11% |
| Anna Jungclaus | 4/10 | 3196 days | 8% |
| Paul and Astrid | 8/10 | 3200 days | 11% |
| Oliver Schatz | 6/10 | 3208 days | 10% |
| Nadja | 2/10 | 3208 days | 5% |
| Wil Goes | 4/10 | 3213 days | 7% |
| D Davey | 9/10 | 3215 days | 11% |
| Sylvain Blanchet | 10/10 | 3221 days | 11% |
| Ral Pritchard | 5/10 | 3232 days | 8% |
| Sue Strebe | 6/10 | 3572 days | 7% |
| Helen Parsons | 6/10 | 3578 days | 7% |
| Ann Wilson | 7/10 | 3905 days | 4% |
| Reto | 4/10 | 3933 days | 3% |
| Tiit Pullerits | 2/10 | 3934 days | 2% |
| Glyn and Karen Farlow | 7/10 | 3935 days | 4% |
| Marius Hoffmann | 6/10 | 3936 days | 4% |
| Lena Jensen | 3/10 | 3954 days | 2% |
| Jesper Andersen | 4/10 | 3954 days | 3% |
| David Embling | 5/10 | 3955 days | 3% |
| Angela Neville | 8/10 | 3955 days | 4% |
| Derek Knight | 8/10 | 3961 days | 4% |
| Jacqui Knight | 8/10 | 3961 days | 4% |
| Elizabeth | 7/10 | 3980 days | 4% |
| Roy Driehuis | 7/10 | 3980 days | 4% |
| AusCampa | 3/10 | 4223 days | 1% |
| Andrew Grimes | 7/10 | 4279 days | 1% |
| Lynda Quartay | 9/10 | 4279 days | 1% |
| Julian Roots | 8/10 | 4284 days | 1% |
| Lorna and Seb | 6/10 | 4287 days | 1% |
| Mary Neustroski | 5/10 | 4298 days | 1% |
| Sam Bensemann | 10/10 | 4343 days | 0% |
| Mike Edwards | 8/10 | 4359 days | 0% |
| Annie | 5/10 | 4367 days | 0% |
| Dio | 6/10 | 4376 days | 0% |
| Michel Vourbraak | 8/10 | 4390 days | 5% |
| Evelyn Mackie | 10/10 | 4642 days | 5% |
| Matthias Angela | 6/10 | 4643 days | 4% |
| Jeltje | 5/10 | 4658 days | 4% |
| Baas | 7/10 | 4658 days | 5% |
| Josef | 1/10 | 4659 days | 2% |
| Sylvia & Garrit | 1/10 | 4663 days | 2% |
| Marco Scheiber | 8/10 | 4672 days | 5% |
| Volker Neumeyer | 9/10 | 4673 days | 5% |
| Anna | 2/10 | 4676 days | 2% |
| Duncan & Ellen | 5/10 | 4694 days | 4% |
| KandJ | 1/10 | 4709 days | 2% |
| Josh | 7/10 | 4752 days | 5% |
| Ray Coombe | 8/10 | 4752 days | 5% |
| Mr & Mrs Palmer | 7/10 | 5001 days | 5% |
| John Stokes | 8/10 | 5003 days | 5% |
| Julia | 2/10 | 5005 days | 2% |
| Juerg & Denise Zuesli | 3/10 | 5008 days | 3% |
| B Kleven | 7/10 | 5009 days | 5% |
| Anita Tonks | 4/10 | 5014 days | 3% |
| Carolin Ranner | 5/10 | 5016 days | 4% |
| Kasten | 4/10 | 5017 days | 3% |
| omlo | 3/10 | 5029 days | 3% |
| David Heads | 8/10 | 5030 days | 5% |
| Irene and Thib Schneider | 8/10 | 5031 days | 5% |
| Bahner | 10/10 | 5031 days | 5% |
| Teum and Orselien | 5/10 | 5031 days | 4% |
| Daniel Bogdanowitsch | 10/10 | 5034 days | 5% |
| Julia | 7/10 | 5035 days | 5% |
| Bas Geerts | 6/10 | 5036 days | 4% |
| Barbara | 7/10 | 5036 days | 5% |
| JohnHaestad | 7/10 | 5043 days | 5% |
| Grant | 8/10 | 5301 days | 5% |
| Quin | 8/10 | 5349 days | 5% |
| Kaddi & Grego | 1/10 | 5381 days | 2% |
| Thomas & Jucki | 8/10 | 5383 days | 5% |
| Rolf X | 4/10 | 5390 days | 3% |
| Gary Ebrig | 7/10 | 5393 days | 5% |
| J Kempeneers | 4/10 | 5394 days | 3% |
| Loleit | 1/10 | 5401 days | 2% |
| vanijzendoor | 8/10 | 5403 days | 5% |
| Sinjc Grude | 3/10 | 5405 days | 3% |
| Jeremy & Sarah Rind | 8/10 | 5407 days | 5% |
| Hugli | 9/10 | 5413 days | 5% |
| W David R Thomas | 5/10 | 5413 days | 4% |
| Beute Jacob | 7/10 | 5421 days | 5% |
| J P Paulvast | 8/10 | 5422 days | 5% |
| Beute Hjel | 8/10 | 5424 days | 5% |
| middendorp | 8/10 | 5454 days | 5% |
| Linda Coats | 10/10 | 5455 days | 5% |
| johnma | 10/10 | 5459 days | 5% |
| sels | 3/10 | 5470 days | 3% |
| Anna | 6/10 | 5500 days | 4% |
| alanvn | 3/10 | 5583 days | 3% |
| richards1 | 2/10 | 5595 days | 2% |
| KarinS | 5/10 | 5707 days | 4% |
| DirkGermany | 10/10 | 5709 days | 5% |
| KatrinS | 1/10 | 5726 days | 2% |
| Lucas | 7/10 | 5730 days | 5% |
| Anna Hansson | 10/10 | 5731 days | 5% |
| Anna Hansson | 10/10 | 5731 days | 5% |
| Sara Hansson | 9/10 | 5731 days | 5% |
| BevanLisa | 7/10 | 5731 days | 5% |
| Hans | 6/10 | 5731 days | 4% |
| OdiliaF | 10/10 | 5733 days | 5% |
| Mary | 9/10 | 5738 days | 5% |
| JetteG | 5/10 | 5748 days | 4% |
| VacherD | 8/10 | 5749 days | 5% |
| Adi | 10/10 | 5762 days | 5% |
| Philippa | 9/10 | 5762 days | 5% |
| De Vries | 7/10 | 5782 days | 5% |
| Debbie Mossman | 6/10 | 5788 days | 4% |
| nsmith | 9/10 | 5866 days | 5% |
| Gray | 10/10 | 5949 days | 5% |
| fgregory | 10/10 | 5976 days | 5% |
| Stewart | 6/10 | 6097 days | 4% |
| Sara Rütten | 4/10 | 6116 days | 3% |
| Sabine Feiner | 10/10 | 6119 days | 5% |
| Roger & Margaret | 8/10 | 6128 days | 5% |
| Gill O'Connor | 8/10 | 6130 days | 5% |
| Kevin | 9/10 | 6199 days | 5% |
| Floren | 8/10 | 6203 days | 5% |
| Rene Schotvanger | 4/10 | 6316 days | 3% |
| ranker_41 | 5/10 | 6316 days | 4% |
| Kate | 3/10 | 6472 days | 3% |
| Bernhard | 8/10 | 6488 days | 5% |
| Walburg | 8/10 | 6491 days | 5% |
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
-4.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 43 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.07% |
| 202 | -4.09% |
| 203 | -4.11% |
| … | … |
Balancing Adjustment
14.36% 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.