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 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 | 90 days | 100% |
| Moira and Tom | 10/10 | 2130 days | 4% |
| Kylee Langdon | 9/10 | 2130 days | 4% |
| Nikki Bristol | 10/10 | 2161 days | 4% |
| shelagh gastrell | 10/10 | 2161 days | 4% |
| Clive Williams | 10/10 | 2222 days | 4% |
| Robin Mooring | 10/10 | 2222 days | 4% |
| Paddy O\\\'Connor | 9/10 | 2222 days | 4% |
| Liz Wade | 10/10 | 2250 days | 4% |
| Trevor | 10/10 | 2251 days | 4% |
| Linda | 10/10 | 2282 days | 4% |
| Pukerooster | 10/10 | 2282 days | 4% |
| T Alan Hatton | 10/10 | 2313 days | 4% |
| Emile | 10/10 | 2343 days | 4% |
| GODARD Tuatini | 10/10 | 2374 days | 4% |
| Ella | 10/10 | 2374 days | 4% |
| Sarah & Paul | 10/10 | 2374 days | 4% |
| Mary | 10/10 | 2435 days | 3% |
| Ricardo Nigro | 10/10 | 2527 days | 3% |
| beryl maehe rogers | 10/10 | 2557 days | 3% |
| Carlos Madrid | 9/10 | 2557 days | 3% |
| maryann de la haye | 10/10 | 2557 days | 3% |
| Kris | 10/10 | 2588 days | 3% |
| Jean-Martial MARENNE | 10/10 | 2588 days | 3% |
| Eleri | 10/10 | 2588 days | 3% |
| Richard Taylor | 10/10 | 2616 days | 3% |
| Jenny Hume | 10/10 | 2647 days | 3% |
| Ollie Bigelow | 10/10 | 2708 days | 3% |
| Kristine | 10/10 | 2708 days | 3% |
| Bill Lyon | 10/10 | 2708 days | 3% |
| Rob & Jan | 10/10 | 2708 days | 3% |
| geex25@gmail.com | 8/10 | 2708 days | 3% |
| Alex | 10/10 | 2739 days | 3% |
| Tara Holmes | 10/10 | 2739 days | 3% |
| Marg | 10/10 | 2739 days | 3% |
| Annette and Jan | 10/10 | 2739 days | 3% |
| Vanesa De la haza | 10/10 | 2769 days | 3% |
| Judy | 10/10 | 2769 days | 3% |
| Emanda | 10/10 | 2769 days | 3% |
| Mary | 10/10 | 2769 days | 3% |
| Paul from Australia | 10/10 | 2892 days | 3% |
| Brad, California | 10/10 | 2953 days | 2% |
| Sarah Killury | 10/10 | 2980 days | 2% |
| Kristin Svensson | 10/10 | 3011 days | 2% |
| Javier Mimbrera | 10/10 | 3133 days | 2% |
| Dave Rollison | 9/10 | 3317 days | 2% |
| Judit Van lanen | 9/10 | 3395 days | 1% |
| Thomas Nolwenn | 7/10 | 3443 days | 1% |
| Jilly Crew | 10/10 | 3498 days | 1% |
| Cj Bloomfield | 10/10 | 3621 days | 1% |
| Stephan Kirchenbaur | 8/10 | 3678 days | 1% |
| Eline Meijer | 7/10 | 3755 days | 1% |
| Ruth P | 10/10 | 3773 days | 1% |
| villemain pascale | 10/10 | 3804 days | 1% |
| Shelley Adderley | 10/10 | 3834 days | 1% |
| Niko Stange | 10/10 | 4017 days | 0% |
| Abi Fielder | 10/10 | 4076 days | 0% |
| MARYSE DUMAS | 9/10 | 4107 days | 0% |
| Karen Hale | 8/10 | 4107 days | 0% |
| Erik Hafuer | 10/10 | 4117 days | 0% |
| Bram and Laura | 9/10 | 4139 days | 0% |
| Polly Rider | 9/10 | 4143 days | 0% |
| Kyle S | 10/10 | 4199 days | 0% |
| Simon Mehlmann | 10/10 | 4391 days | 1% |
| Astrid | 10/10 | 4414 days | 1% |
| Miriam Grund | 8/10 | 4418 days | 1% |
| Brian | 9/10 | 4534 days | 1% |
| Martin & Carol | 10/10 | 4565 days | 1% |
| Christine & Andrew | 9/10 | 4657 days | 1% |
| Bonnie and David Appleby | 10/10 | 4779 days | 1% |
| Rob Walker | 10/10 | 4779 days | 1% |
| Brigitte | 9/10 | 4857 days | 1% |
| Andreas Garbin | 10/10 | 4857 days | 1% |
| cmhamlin | 10/10 | 4869 days | 1% |
| Fam von Hattem | 9/10 | 4881 days | 1% |
| Bodil Andersen | 10/10 | 4884 days | 1% |
| phudgb | 10/10 | 4930 days | 1% |
| Lukea | 10/10 | 5113 days | 1% |
| Huw Davies | 9/10 | 5119 days | 1% |
| Lisa Carey | 9/10 | 5130 days | 1% |
| Michael Touzer | 9/10 | 5139 days | 1% |
| Lucy Wilde | 9/10 | 5147 days | 1% |
| Miina Hyuonen | 8/10 | 5155 days | 1% |
| Dieter Mangold | 10/10 | 5156 days | 1% |
| Preben vil Helmsen | 10/10 | 5156 days | 1% |
| Rachel | 7/10 | 5158 days | 0% |
| Christian Apfel | 9/10 | 5161 days | 1% |
| Elizabeth Gardner | 9/10 | 5165 days | 1% |
| Fleur & Nils | 9/10 | 5166 days | 1% |
| kiwiconvert | 10/10 | 5173 days | 1% |
| ivanovskyv | 10/10 | 5204 days | 1% |
| Willem & Lilian | 9/10 | 5244 days | 1% |
| Lardy | 8/10 | 5252 days | 1% |
| piseagalba | 10/10 | 5265 days | 1% |
| katel86 | 10/10 | 5326 days | 1% |
| shelleyp | 10/10 | 5449 days | 1% |
| bdel1963 | 10/10 | 5449 days | 1% |
| Geoff Shutt | 9/10 | 5449 days | 1% |
| Ralph & Marloes Meyers | 8/10 | 5478 days | 1% |
| Helen Evans | 7/10 | 5493 days | 0% |
| Binder | 6/10 | 5494 days | 0% |
| Monica | 8/10 | 5506 days | 1% |
| Vincent | 9/10 | 5514 days | 1% |
| Kurmann/Kayser | 9/10 | 5516 days | 1% |
| Pascal | 9/10 | 5528 days | 1% |
| Kris | 10/10 | 5528 days | 1% |
| Sprangers | 9/10 | 5531 days | 1% |
| ianbateup | 10/10 | 5538 days | 1% |
| Lance | 10/10 | 5630 days | 1% |
| Papu | 10/10 | 5630 days | 1% |
| marisraneth | 8/10 | 5844 days | 1% |
| john england | 10/10 | 5875 days | 1% |
| Mary Selfa | 10/10 | 5899 days | 1% |
| snodge | 9/10 | 5903 days | 1% |
| PaulR | 10/10 | 5934 days | 1% |
| Thomas Rust | 10/10 | 5969 days | 1% |
| SBlake | 10/10 | 6214 days | 1% |
| KathM | 8/10 | 6225 days | 1% |
| ToyalFrance | 10/10 | 6229 days | 1% |
| Donna | 10/10 | 6234 days | 1% |
| PeterG | 9/10 | 6242 days | 1% |
| NicoleG | 8/10 | 6242 days | 1% |
| ReneeA | 9/10 | 6257 days | 1% |
| Ans | 8/10 | 6282 days | 1% |
| Marga V | 10/10 | 6321 days | 1% |
| mehunt | 9/10 | 6321 days | 1% |
| lming60 | 6/10 | 6334 days | 1% |
| Bryony Wilson | 9/10 | 6589 days | 1% |
| Buys | 7/10 | 6614 days | 0% |
| Carole Roccia | 10/10 | 6650 days | 1% |
| Valeria Barouch | 10/10 | 6691 days | 1% |
| Katherine | 10/10 | 6965 days | 1% |
| Nissa | 10/10 | 6974 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
-1.64% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 60 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 88 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 85 | -1.59% |
| 86 | -1.61% |
| 87 | -1.63% |
| 88 | -1.64% |
| 89 | -1.66% |
| 90 | -1.68% |
| 91 | -1.70% |
| … | … |
Balancing Adjustment
0.35% 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.