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 Spellbound Ltd.
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.
Spellbound Ltd
Valid Reviews
133 Valid Reviews
The Spellbound Ltd experience has a total of 139 reviews. There are 133 valid reviews that are included when calculating the ranking score and 6 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 133 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 84 |
|
63% |
| 9/10 | 30 |
|
23% |
| 8/10 | 12 |
|
9% |
| 7/10 | 5 |
|
4% |
| 6/10 | 2 |
|
2% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
94.21% Average
The raw data average (mean) for all the Spellbound Ltd valid reviews is 94.21% and is based on 133 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
52 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 133 valid reviews, the experience has 52 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 52 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 16 |
|
31% |
| 9/10 | 20 |
|
38% |
| 8/10 | 10 |
|
19% |
| 7/10 | 5 |
|
10% |
| 6/10 | 1 |
|
2% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
88.65% Average
The raw data average (mean) for all the Spellbound Ltd face-to-face reviews is 88.65% and is based on 52 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
97.51%
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 |
|---|---|---|---|
| Zol | 10/10 | 150 days | 100% |
| Moira and Tom | 10/10 | 2190 days | 4% |
| Kylee Langdon | 9/10 | 2190 days | 4% |
| Nikki Bristol | 10/10 | 2221 days | 4% |
| shelagh gastrell | 10/10 | 2221 days | 4% |
| Clive Williams | 10/10 | 2282 days | 4% |
| Robin Mooring | 10/10 | 2282 days | 4% |
| Paddy O\\\'Connor | 9/10 | 2282 days | 4% |
| Liz Wade | 10/10 | 2310 days | 4% |
| Trevor | 10/10 | 2311 days | 4% |
| Linda | 10/10 | 2342 days | 4% |
| Pukerooster | 10/10 | 2342 days | 4% |
| T Alan Hatton | 10/10 | 2373 days | 4% |
| Emile | 10/10 | 2403 days | 4% |
| GODARD Tuatini | 10/10 | 2434 days | 4% |
| Ella | 10/10 | 2434 days | 4% |
| Sarah & Paul | 10/10 | 2434 days | 4% |
| Mary | 10/10 | 2495 days | 4% |
| Ricardo Nigro | 10/10 | 2587 days | 3% |
| beryl maehe rogers | 10/10 | 2617 days | 3% |
| Carlos Madrid | 9/10 | 2617 days | 3% |
| maryann de la haye | 10/10 | 2617 days | 3% |
| Kris | 10/10 | 2648 days | 3% |
| Jean-Martial MARENNE | 10/10 | 2648 days | 3% |
| Eleri | 10/10 | 2648 days | 3% |
| Richard Taylor | 10/10 | 2676 days | 3% |
| Jenny Hume | 10/10 | 2707 days | 3% |
| Ollie Bigelow | 10/10 | 2768 days | 3% |
| Kristine | 10/10 | 2768 days | 3% |
| Bill Lyon | 10/10 | 2768 days | 3% |
| Rob & Jan | 10/10 | 2768 days | 3% |
| geex25@gmail.com | 8/10 | 2768 days | 3% |
| Alex | 10/10 | 2799 days | 3% |
| Tara Holmes | 10/10 | 2799 days | 3% |
| Marg | 10/10 | 2799 days | 3% |
| Annette and Jan | 10/10 | 2799 days | 3% |
| Vanesa De la haza | 10/10 | 2829 days | 3% |
| Judy | 10/10 | 2829 days | 3% |
| Emanda | 10/10 | 2829 days | 3% |
| Mary | 10/10 | 2829 days | 3% |
| Paul from Australia | 10/10 | 2952 days | 3% |
| Brad, California | 10/10 | 3013 days | 2% |
| Sarah Killury | 10/10 | 3040 days | 2% |
| Kristin Svensson | 10/10 | 3071 days | 2% |
| Javier Mimbrera | 10/10 | 3193 days | 2% |
| Dave Rollison | 9/10 | 3377 days | 2% |
| Judit Van lanen | 9/10 | 3455 days | 1% |
| Thomas Nolwenn | 7/10 | 3503 days | 1% |
| Jilly Crew | 10/10 | 3558 days | 1% |
| Cj Bloomfield | 10/10 | 3681 days | 1% |
| Stephan Kirchenbaur | 8/10 | 3738 days | 1% |
| Eline Meijer | 7/10 | 3815 days | 1% |
| Ruth P | 10/10 | 3833 days | 1% |
| villemain pascale | 10/10 | 3864 days | 1% |
| Shelley Adderley | 10/10 | 3894 days | 1% |
| Niko Stange | 10/10 | 4077 days | 0% |
| Abi Fielder | 10/10 | 4136 days | 0% |
| MARYSE DUMAS | 9/10 | 4167 days | 0% |
| Karen Hale | 8/10 | 4167 days | 0% |
| Erik Hafuer | 10/10 | 4177 days | 0% |
| Bram and Laura | 9/10 | 4199 days | 0% |
| Polly Rider | 9/10 | 4203 days | 0% |
| Kyle S | 10/10 | 4259 days | 0% |
| Simon Mehlmann | 10/10 | 4451 days | 1% |
| Astrid | 10/10 | 4474 days | 1% |
| Miriam Grund | 8/10 | 4478 days | 1% |
| Brian | 9/10 | 4594 days | 1% |
| Martin & Carol | 10/10 | 4625 days | 1% |
| Christine & Andrew | 9/10 | 4717 days | 1% |
| Bonnie and David Appleby | 10/10 | 4839 days | 1% |
| Rob Walker | 10/10 | 4839 days | 1% |
| Brigitte | 9/10 | 4917 days | 1% |
| Andreas Garbin | 10/10 | 4917 days | 1% |
| cmhamlin | 10/10 | 4929 days | 1% |
| Fam von Hattem | 9/10 | 4941 days | 1% |
| Bodil Andersen | 10/10 | 4944 days | 1% |
| phudgb | 10/10 | 4990 days | 1% |
| Lukea | 10/10 | 5173 days | 1% |
| Huw Davies | 9/10 | 5179 days | 1% |
| Lisa Carey | 9/10 | 5190 days | 1% |
| Michael Touzer | 9/10 | 5199 days | 1% |
| Lucy Wilde | 9/10 | 5207 days | 1% |
| Miina Hyuonen | 8/10 | 5215 days | 1% |
| Dieter Mangold | 10/10 | 5216 days | 1% |
| Preben vil Helmsen | 10/10 | 5216 days | 1% |
| Rachel | 7/10 | 5218 days | 1% |
| Christian Apfel | 9/10 | 5221 days | 1% |
| Elizabeth Gardner | 9/10 | 5225 days | 1% |
| Fleur & Nils | 9/10 | 5226 days | 1% |
| kiwiconvert | 10/10 | 5233 days | 1% |
| ivanovskyv | 10/10 | 5264 days | 1% |
| Willem & Lilian | 9/10 | 5304 days | 1% |
| Lardy | 8/10 | 5312 days | 1% |
| piseagalba | 10/10 | 5325 days | 1% |
| katel86 | 10/10 | 5386 days | 1% |
| shelleyp | 10/10 | 5509 days | 1% |
| bdel1963 | 10/10 | 5509 days | 1% |
| Geoff Shutt | 9/10 | 5509 days | 1% |
| Ralph & Marloes Meyers | 8/10 | 5538 days | 1% |
| Helen Evans | 7/10 | 5553 days | 1% |
| Binder | 6/10 | 5554 days | 1% |
| Monica | 8/10 | 5566 days | 1% |
| Vincent | 9/10 | 5574 days | 1% |
| Kurmann/Kayser | 9/10 | 5576 days | 1% |
| Pascal | 9/10 | 5588 days | 1% |
| Kris | 10/10 | 5588 days | 1% |
| Sprangers | 9/10 | 5591 days | 1% |
| ianbateup | 10/10 | 5598 days | 1% |
| Lance | 10/10 | 5690 days | 1% |
| Papu | 10/10 | 5690 days | 1% |
| marisraneth | 8/10 | 5904 days | 1% |
| john england | 10/10 | 5935 days | 1% |
| Mary Selfa | 10/10 | 5959 days | 1% |
| snodge | 9/10 | 5963 days | 1% |
| PaulR | 10/10 | 5994 days | 1% |
| Thomas Rust | 10/10 | 6029 days | 1% |
| SBlake | 10/10 | 6274 days | 1% |
| KathM | 8/10 | 6285 days | 1% |
| ToyalFrance | 10/10 | 6289 days | 1% |
| Donna | 10/10 | 6294 days | 1% |
| PeterG | 9/10 | 6302 days | 1% |
| NicoleG | 8/10 | 6302 days | 1% |
| ReneeA | 9/10 | 6317 days | 1% |
| Ans | 8/10 | 6342 days | 1% |
| Marga V | 10/10 | 6381 days | 1% |
| mehunt | 9/10 | 6382 days | 1% |
| lming60 | 6/10 | 6394 days | 1% |
| Bryony Wilson | 9/10 | 6649 days | 1% |
| Buys | 7/10 | 6674 days | 1% |
| Carole Roccia | 10/10 | 6710 days | 1% |
| Valeria Barouch | 10/10 | 6751 days | 1% |
| Katherine | 10/10 | 7025 days | 1% |
| Nissa | 10/10 | 7034 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 Spellbound Ltd experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-1.83% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 105 days. However the Spellbound Ltd 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 Spellbound Ltd experience has been adjusted for 148 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 145 | -1.79% |
| 146 | -1.80% |
| 147 | -1.82% |
| 148 | -1.83% |
| 149 | -1.84% |
| 150 | -1.85% |
| 151 | -1.87% |
| … | … |
Balancing Adjustment
0.37% 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
96%
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.