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.
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Spellbound Ltd
Valid Reviews
132 Valid Reviews
The Spellbound Ltd experience has a total of 138 reviews. There are 132 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 132 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 83 |
|
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% |
94.17% Average
The raw data average (mean) for all the Spellbound Ltd valid reviews is 94.17% 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
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 132 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
96.59%
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 |
|---|---|---|---|
| Moira and Tom | 10/10 | 1777 days | 100% |
| Kylee Langdon | 9/10 | 1777 days | 99% |
| Nikki Bristol | 10/10 | 1808 days | 98% |
| shelagh gastrell | 10/10 | 1808 days | 98% |
| Clive Williams | 10/10 | 1869 days | 96% |
| Robin Mooring | 10/10 | 1869 days | 96% |
| Paddy O\\\'Connor | 9/10 | 1869 days | 95% |
| Liz Wade | 10/10 | 1897 days | 95% |
| Trevor | 10/10 | 1898 days | 94% |
| Linda | 10/10 | 1929 days | 93% |
| Pukerooster | 10/10 | 1929 days | 93% |
| T Alan Hatton | 10/10 | 1960 days | 92% |
| Emile | 10/10 | 1990 days | 91% |
| GODARD Tuatini | 10/10 | 2021 days | 90% |
| Ella | 10/10 | 2021 days | 90% |
| Sarah & Paul | 10/10 | 2021 days | 90% |
| Mary | 10/10 | 2082 days | 87% |
| Ricardo Nigro | 10/10 | 2174 days | 84% |
| beryl maehe rogers | 10/10 | 2204 days | 82% |
| Carlos Madrid | 9/10 | 2204 days | 82% |
| maryann de la haye | 10/10 | 2204 days | 82% |
| Kris | 10/10 | 2235 days | 81% |
| Jean-Martial MARENNE | 10/10 | 2235 days | 81% |
| Eleri | 10/10 | 2235 days | 81% |
| Richard Taylor | 10/10 | 2263 days | 80% |
| Jenny Hume | 10/10 | 2294 days | 79% |
| Ollie Bigelow | 10/10 | 2355 days | 77% |
| Kristine | 10/10 | 2355 days | 77% |
| Bill Lyon | 10/10 | 2355 days | 77% |
| Rob & Jan | 10/10 | 2355 days | 77% |
| geex25@gmail.com | 8/10 | 2355 days | 75% |
| Alex | 10/10 | 2386 days | 75% |
| Tara Holmes | 10/10 | 2386 days | 75% |
| Marg | 10/10 | 2386 days | 75% |
| Annette and Jan | 10/10 | 2386 days | 75% |
| Vanesa De la haza | 10/10 | 2416 days | 74% |
| Judy | 10/10 | 2416 days | 74% |
| Emanda | 10/10 | 2416 days | 74% |
| Mary | 10/10 | 2416 days | 74% |
| Paul from Australia | 10/10 | 2539 days | 69% |
| Brad, California | 10/10 | 2600 days | 67% |
| Sarah Killury | 10/10 | 2627 days | 66% |
| Kristin Svensson | 10/10 | 2658 days | 65% |
| Javier Mimbrera | 10/10 | 2780 days | 60% |
| Dave Rollison | 9/10 | 2964 days | 52% |
| Judit Van lanen | 9/10 | 3042 days | 44% |
| Thomas Nolwenn | 7/10 | 3090 days | 39% |
| Jilly Crew | 10/10 | 3145 days | 46% |
| Cj Bloomfield | 10/10 | 3268 days | 41% |
| Stephan Kirchenbaur | 8/10 | 3325 days | 34% |
| Eline Meijer | 7/10 | 3402 days | 29% |
| Ruth P | 10/10 | 3420 days | 35% |
| villemain pascale | 10/10 | 3451 days | 34% |
| Shelley Adderley | 10/10 | 3481 days | 32% |
| Niko Stange | 10/10 | 3664 days | 25% |
| Abi Fielder | 10/10 | 3723 days | 23% |
| MARYSE DUMAS | 9/10 | 3754 days | 21% |
| Karen Hale | 8/10 | 3754 days | 21% |
| Erik Hafuer | 10/10 | 3764 days | 19% |
| Bram and Laura | 9/10 | 3786 days | 18% |
| Polly Rider | 9/10 | 3790 days | 18% |
| Kyle S | 10/10 | 3846 days | 18% |
| Simon Mehlmann | 10/10 | 4038 days | 9% |
| Astrid | 10/10 | 4061 days | 10% |
| Miriam Grund | 8/10 | 4065 days | 8% |
| Brian | 9/10 | 4181 days | 5% |
| Martin & Carol | 10/10 | 4212 days | 4% |
| Christine & Andrew | 9/10 | 4304 days | 0% |
| Bonnie and David Appleby | 10/10 | 4426 days | 17% |
| Rob Walker | 10/10 | 4426 days | 17% |
| Brigitte | 9/10 | 4504 days | 15% |
| Andreas Garbin | 10/10 | 4504 days | 15% |
| cmhamlin | 10/10 | 4516 days | 17% |
| Fam von Hattem | 9/10 | 4528 days | 15% |
| Bodil Andersen | 10/10 | 4531 days | 15% |
| phudgb | 10/10 | 4577 days | 17% |
| Lukea | 10/10 | 4760 days | 17% |
| Huw Davies | 9/10 | 4766 days | 15% |
| Lisa Carey | 9/10 | 4777 days | 15% |
| Michael Touzer | 9/10 | 4786 days | 15% |
| Lucy Wilde | 9/10 | 4794 days | 15% |
| Miina Hyuonen | 8/10 | 4802 days | 15% |
| Dieter Mangold | 10/10 | 4803 days | 15% |
| Preben vil Helmsen | 10/10 | 4803 days | 15% |
| Rachel | 7/10 | 4805 days | 14% |
| Christian Apfel | 9/10 | 4808 days | 15% |
| Elizabeth Gardner | 9/10 | 4812 days | 15% |
| Fleur & Nils | 9/10 | 4813 days | 15% |
| kiwiconvert | 10/10 | 4820 days | 17% |
| ivanovskyv | 10/10 | 4851 days | 17% |
| Willem & Lilian | 9/10 | 4891 days | 15% |
| Lardy | 8/10 | 4899 days | 15% |
| piseagalba | 10/10 | 4912 days | 17% |
| katel86 | 10/10 | 4973 days | 17% |
| shelleyp | 10/10 | 5096 days | 17% |
| bdel1963 | 10/10 | 5096 days | 17% |
| Geoff Shutt | 9/10 | 5096 days | 17% |
| Ralph & Marloes Meyers | 8/10 | 5125 days | 15% |
| Helen Evans | 7/10 | 5140 days | 14% |
| Binder | 6/10 | 5141 days | 12% |
| Monica | 8/10 | 5153 days | 15% |
| Vincent | 9/10 | 5161 days | 15% |
| Kurmann/Kayser | 9/10 | 5163 days | 15% |
| Pascal | 9/10 | 5175 days | 15% |
| Kris | 10/10 | 5175 days | 15% |
| Sprangers | 9/10 | 5178 days | 15% |
| ianbateup | 10/10 | 5185 days | 17% |
| Lance | 10/10 | 5277 days | 17% |
| Papu | 10/10 | 5277 days | 17% |
| marisraneth | 8/10 | 5491 days | 15% |
| john england | 10/10 | 5522 days | 17% |
| Mary Selfa | 10/10 | 5546 days | 15% |
| snodge | 9/10 | 5550 days | 17% |
| PaulR | 10/10 | 5581 days | 17% |
| Thomas Rust | 10/10 | 5616 days | 15% |
| SBlake | 10/10 | 5861 days | 15% |
| KathM | 8/10 | 5872 days | 15% |
| ToyalFrance | 10/10 | 5876 days | 15% |
| Donna | 10/10 | 5881 days | 15% |
| PeterG | 9/10 | 5889 days | 15% |
| NicoleG | 8/10 | 5889 days | 15% |
| ReneeA | 9/10 | 5904 days | 15% |
| Ans | 8/10 | 5929 days | 15% |
| Marga V | 10/10 | 5968 days | 17% |
| mehunt | 9/10 | 5969 days | 17% |
| lming60 | 6/10 | 5981 days | 14% |
| Bryony Wilson | 9/10 | 6236 days | 15% |
| Buys | 7/10 | 6261 days | 14% |
| Carole Roccia | 10/10 | 6297 days | 15% |
| Valeria Barouch | 10/10 | 6338 days | 15% |
| Katherine | 10/10 | 6612 days | 15% |
| Nissa | 10/10 | 6621 days | 15% |
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
-3.51% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 64 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 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.45% |
| 198 | -3.47% |
| 199 | -3.49% |
| 200 | -3.51% |
| 201 | -3.52% |
| 202 | -3.54% |
| 203 | -3.56% |
| … | … |
Balancing Adjustment
0.63% 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
94%
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.