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
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
96.53%
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 | 2025 days | 100% |
| Kylee Langdon | 9/10 | 2025 days | 99% |
| Nikki Bristol | 10/10 | 2056 days | 99% |
| shelagh gastrell | 10/10 | 2056 days | 99% |
| Clive Williams | 10/10 | 2117 days | 96% |
| Robin Mooring | 10/10 | 2117 days | 96% |
| Paddy O\\\'Connor | 9/10 | 2117 days | 95% |
| Liz Wade | 10/10 | 2146 days | 95% |
| Trevor | 10/10 | 2146 days | 95% |
| Linda | 10/10 | 2177 days | 93% |
| Pukerooster | 10/10 | 2177 days | 93% |
| T Alan Hatton | 10/10 | 2208 days | 92% |
| Emile | 10/10 | 2238 days | 91% |
| GODARD Tuatini | 10/10 | 2269 days | 89% |
| Ella | 10/10 | 2269 days | 89% |
| Sarah & Paul | 10/10 | 2269 days | 89% |
| Mary | 10/10 | 2330 days | 87% |
| Ricardo Nigro | 10/10 | 2422 days | 83% |
| beryl maehe rogers | 10/10 | 2452 days | 81% |
| Carlos Madrid | 9/10 | 2452 days | 81% |
| maryann de la haye | 10/10 | 2452 days | 81% |
| Kris | 10/10 | 2483 days | 80% |
| Jean-Martial MARENNE | 10/10 | 2483 days | 80% |
| Eleri | 10/10 | 2483 days | 80% |
| Richard Taylor | 10/10 | 2511 days | 79% |
| Jenny Hume | 10/10 | 2542 days | 77% |
| Ollie Bigelow | 10/10 | 2603 days | 75% |
| Kristine | 10/10 | 2603 days | 75% |
| Bill Lyon | 10/10 | 2603 days | 75% |
| Rob & Jan | 10/10 | 2603 days | 75% |
| geex25@gmail.com | 8/10 | 2603 days | 73% |
| Alex | 10/10 | 2634 days | 73% |
| Tara Holmes | 10/10 | 2634 days | 73% |
| Marg | 10/10 | 2634 days | 73% |
| Annette and Jan | 10/10 | 2634 days | 73% |
| Vanesa De la haza | 10/10 | 2664 days | 72% |
| Judy | 10/10 | 2664 days | 72% |
| Emanda | 10/10 | 2664 days | 72% |
| Mary | 10/10 | 2664 days | 72% |
| Paul from Australia | 10/10 | 2787 days | 67% |
| Brad, California | 10/10 | 2848 days | 64% |
| Sarah Killury | 10/10 | 2876 days | 63% |
| Kristin Svensson | 10/10 | 2907 days | 61% |
| Javier Mimbrera | 10/10 | 3029 days | 56% |
| Dave Rollison | 9/10 | 3213 days | 48% |
| Judit Van lanen | 9/10 | 3290 days | 40% |
| Thomas Nolwenn | 7/10 | 3338 days | 35% |
| Jilly Crew | 10/10 | 3394 days | 40% |
| Cj Bloomfield | 10/10 | 3517 days | 35% |
| Stephan Kirchenbaur | 8/10 | 3573 days | 28% |
| Eline Meijer | 7/10 | 3650 days | 24% |
| Ruth P | 10/10 | 3669 days | 28% |
| villemain pascale | 10/10 | 3699 days | 27% |
| Shelley Adderley | 10/10 | 3730 days | 26% |
| Niko Stange | 10/10 | 3913 days | 18% |
| Abi Fielder | 10/10 | 3972 days | 15% |
| MARYSE DUMAS | 9/10 | 4003 days | 13% |
| Karen Hale | 8/10 | 4003 days | 13% |
| Erik Hafuer | 10/10 | 4012 days | 12% |
| Bram and Laura | 9/10 | 4034 days | 11% |
| Polly Rider | 9/10 | 4038 days | 10% |
| Kyle S | 10/10 | 4095 days | 10% |
| Simon Mehlmann | 10/10 | 4286 days | 1% |
| Astrid | 10/10 | 4309 days | 0% |
| Miriam Grund | 8/10 | 4313 days | 0% |
| Brian | 9/10 | 4429 days | 19% |
| Martin & Carol | 10/10 | 4460 days | 19% |
| Christine & Andrew | 9/10 | 4552 days | 19% |
| Bonnie and David Appleby | 10/10 | 4674 days | 19% |
| Rob Walker | 10/10 | 4674 days | 19% |
| Brigitte | 9/10 | 4752 days | 17% |
| Andreas Garbin | 10/10 | 4752 days | 17% |
| cmhamlin | 10/10 | 4764 days | 19% |
| Fam von Hattem | 9/10 | 4776 days | 17% |
| Bodil Andersen | 10/10 | 4779 days | 17% |
| phudgb | 10/10 | 4825 days | 19% |
| Lukea | 10/10 | 5008 days | 19% |
| Huw Davies | 9/10 | 5014 days | 17% |
| Lisa Carey | 9/10 | 5025 days | 17% |
| Michael Touzer | 9/10 | 5034 days | 17% |
| Lucy Wilde | 9/10 | 5042 days | 17% |
| Miina Hyuonen | 8/10 | 5050 days | 17% |
| Dieter Mangold | 10/10 | 5051 days | 17% |
| Preben vil Helmsen | 10/10 | 5051 days | 17% |
| Rachel | 7/10 | 5053 days | 16% |
| Christian Apfel | 9/10 | 5056 days | 17% |
| Elizabeth Gardner | 9/10 | 5060 days | 17% |
| Fleur & Nils | 9/10 | 5061 days | 17% |
| kiwiconvert | 10/10 | 5068 days | 19% |
| ivanovskyv | 10/10 | 5099 days | 19% |
| Willem & Lilian | 9/10 | 5139 days | 17% |
| Lardy | 8/10 | 5147 days | 17% |
| piseagalba | 10/10 | 5160 days | 19% |
| katel86 | 10/10 | 5221 days | 19% |
| shelleyp | 10/10 | 5344 days | 19% |
| bdel1963 | 10/10 | 5344 days | 19% |
| Geoff Shutt | 9/10 | 5344 days | 19% |
| Ralph & Marloes Meyers | 8/10 | 5373 days | 17% |
| Helen Evans | 7/10 | 5388 days | 16% |
| Binder | 6/10 | 5389 days | 14% |
| Monica | 8/10 | 5401 days | 17% |
| Vincent | 9/10 | 5409 days | 17% |
| Kurmann/Kayser | 9/10 | 5411 days | 17% |
| Pascal | 9/10 | 5423 days | 17% |
| Kris | 10/10 | 5423 days | 17% |
| Sprangers | 9/10 | 5426 days | 17% |
| ianbateup | 10/10 | 5433 days | 19% |
| Lance | 10/10 | 5525 days | 19% |
| Papu | 10/10 | 5525 days | 19% |
| marisraneth | 8/10 | 5739 days | 17% |
| john england | 10/10 | 5770 days | 19% |
| Mary Selfa | 10/10 | 5794 days | 17% |
| snodge | 9/10 | 5798 days | 19% |
| PaulR | 10/10 | 5829 days | 19% |
| Thomas Rust | 10/10 | 5864 days | 17% |
| SBlake | 10/10 | 6109 days | 17% |
| KathM | 8/10 | 6120 days | 17% |
| ToyalFrance | 10/10 | 6124 days | 17% |
| Donna | 10/10 | 6129 days | 17% |
| PeterG | 9/10 | 6137 days | 17% |
| NicoleG | 8/10 | 6137 days | 17% |
| ReneeA | 9/10 | 6152 days | 17% |
| Ans | 8/10 | 6177 days | 17% |
| Marga V | 10/10 | 6216 days | 19% |
| mehunt | 9/10 | 6217 days | 19% |
| lming60 | 6/10 | 6230 days | 16% |
| Bryony Wilson | 9/10 | 6484 days | 17% |
| Buys | 7/10 | 6509 days | 16% |
| Carole Roccia | 10/10 | 6545 days | 17% |
| Valeria Barouch | 10/10 | 6586 days | 17% |
| Katherine | 10/10 | 6860 days | 17% |
| Nissa | 10/10 | 6869 days | 17% |
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
-4.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.07% |
| 202 | -4.09% |
| 203 | -4.11% |
| … | … |
Balancing Adjustment
0.69% 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
93%
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.