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 | 222 days | 100% |
| Moira and Tom | 10/10 | 2262 days | 4% |
| Kylee Langdon | 9/10 | 2262 days | 4% |
| Nikki Bristol | 10/10 | 2293 days | 4% |
| shelagh gastrell | 10/10 | 2293 days | 4% |
| Clive Williams | 10/10 | 2354 days | 4% |
| Robin Mooring | 10/10 | 2354 days | 4% |
| Paddy O\\\'Connor | 9/10 | 2354 days | 4% |
| Liz Wade | 10/10 | 2382 days | 4% |
| Trevor | 10/10 | 2383 days | 4% |
| Linda | 10/10 | 2414 days | 4% |
| Pukerooster | 10/10 | 2414 days | 4% |
| T Alan Hatton | 10/10 | 2445 days | 4% |
| Emile | 10/10 | 2475 days | 4% |
| GODARD Tuatini | 10/10 | 2506 days | 4% |
| Ella | 10/10 | 2506 days | 4% |
| Sarah & Paul | 10/10 | 2506 days | 4% |
| Mary | 10/10 | 2567 days | 4% |
| Ricardo Nigro | 10/10 | 2659 days | 3% |
| beryl maehe rogers | 10/10 | 2689 days | 3% |
| Carlos Madrid | 9/10 | 2689 days | 3% |
| maryann de la haye | 10/10 | 2689 days | 3% |
| Kris | 10/10 | 2720 days | 3% |
| Jean-Martial MARENNE | 10/10 | 2720 days | 3% |
| Eleri | 10/10 | 2720 days | 3% |
| Richard Taylor | 10/10 | 2748 days | 3% |
| Jenny Hume | 10/10 | 2779 days | 3% |
| Ollie Bigelow | 10/10 | 2840 days | 3% |
| Kristine | 10/10 | 2840 days | 3% |
| Bill Lyon | 10/10 | 2840 days | 3% |
| Rob & Jan | 10/10 | 2840 days | 3% |
| geex25@gmail.com | 8/10 | 2840 days | 3% |
| Alex | 10/10 | 2871 days | 3% |
| Tara Holmes | 10/10 | 2871 days | 3% |
| Marg | 10/10 | 2871 days | 3% |
| Annette and Jan | 10/10 | 2871 days | 3% |
| Vanesa De la haza | 10/10 | 2901 days | 3% |
| Judy | 10/10 | 2901 days | 3% |
| Emanda | 10/10 | 2901 days | 3% |
| Mary | 10/10 | 2901 days | 3% |
| Paul from Australia | 10/10 | 3024 days | 3% |
| Brad, California | 10/10 | 3085 days | 3% |
| Sarah Killury | 10/10 | 3112 days | 2% |
| Kristin Svensson | 10/10 | 3143 days | 2% |
| Javier Mimbrera | 10/10 | 3265 days | 2% |
| Dave Rollison | 9/10 | 3449 days | 2% |
| Judit Van lanen | 9/10 | 3527 days | 1% |
| Thomas Nolwenn | 7/10 | 3575 days | 1% |
| Jilly Crew | 10/10 | 3630 days | 1% |
| Cj Bloomfield | 10/10 | 3753 days | 1% |
| Stephan Kirchenbaur | 8/10 | 3810 days | 1% |
| Eline Meijer | 7/10 | 3887 days | 1% |
| Ruth P | 10/10 | 3905 days | 1% |
| villemain pascale | 10/10 | 3936 days | 1% |
| Shelley Adderley | 10/10 | 3966 days | 1% |
| Niko Stange | 10/10 | 4149 days | 0% |
| Abi Fielder | 10/10 | 4208 days | 0% |
| MARYSE DUMAS | 9/10 | 4239 days | 0% |
| Karen Hale | 8/10 | 4239 days | 0% |
| Erik Hafuer | 10/10 | 4249 days | 0% |
| Bram and Laura | 9/10 | 4271 days | 0% |
| Polly Rider | 9/10 | 4275 days | 0% |
| Kyle S | 10/10 | 4331 days | 0% |
| Simon Mehlmann | 10/10 | 4523 days | 1% |
| Astrid | 10/10 | 4546 days | 1% |
| Miriam Grund | 8/10 | 4550 days | 1% |
| Brian | 9/10 | 4666 days | 1% |
| Martin & Carol | 10/10 | 4697 days | 1% |
| Christine & Andrew | 9/10 | 4789 days | 1% |
| Bonnie and David Appleby | 10/10 | 4911 days | 1% |
| Rob Walker | 10/10 | 4911 days | 1% |
| Brigitte | 9/10 | 4989 days | 1% |
| Andreas Garbin | 10/10 | 4989 days | 1% |
| cmhamlin | 10/10 | 5001 days | 1% |
| Fam von Hattem | 9/10 | 5013 days | 1% |
| Bodil Andersen | 10/10 | 5016 days | 1% |
| phudgb | 10/10 | 5062 days | 1% |
| Lukea | 10/10 | 5245 days | 1% |
| Huw Davies | 9/10 | 5251 days | 1% |
| Lisa Carey | 9/10 | 5262 days | 1% |
| Michael Touzer | 9/10 | 5271 days | 1% |
| Lucy Wilde | 9/10 | 5279 days | 1% |
| Miina Hyuonen | 8/10 | 5287 days | 1% |
| Dieter Mangold | 10/10 | 5288 days | 1% |
| Preben vil Helmsen | 10/10 | 5288 days | 1% |
| Rachel | 7/10 | 5290 days | 1% |
| Christian Apfel | 9/10 | 5293 days | 1% |
| Elizabeth Gardner | 9/10 | 5297 days | 1% |
| Fleur & Nils | 9/10 | 5298 days | 1% |
| kiwiconvert | 10/10 | 5305 days | 1% |
| ivanovskyv | 10/10 | 5336 days | 1% |
| Willem & Lilian | 9/10 | 5376 days | 1% |
| Lardy | 8/10 | 5384 days | 1% |
| piseagalba | 10/10 | 5397 days | 1% |
| katel86 | 10/10 | 5458 days | 1% |
| shelleyp | 10/10 | 5581 days | 1% |
| bdel1963 | 10/10 | 5581 days | 1% |
| Geoff Shutt | 9/10 | 5581 days | 1% |
| Ralph & Marloes Meyers | 8/10 | 5610 days | 1% |
| Helen Evans | 7/10 | 5625 days | 1% |
| Binder | 6/10 | 5626 days | 1% |
| Monica | 8/10 | 5638 days | 1% |
| Vincent | 9/10 | 5646 days | 1% |
| Kurmann/Kayser | 9/10 | 5648 days | 1% |
| Pascal | 9/10 | 5660 days | 1% |
| Kris | 10/10 | 5660 days | 1% |
| Sprangers | 9/10 | 5663 days | 1% |
| ianbateup | 10/10 | 5670 days | 1% |
| Lance | 10/10 | 5762 days | 1% |
| Papu | 10/10 | 5762 days | 1% |
| marisraneth | 8/10 | 5976 days | 1% |
| john england | 10/10 | 6007 days | 1% |
| Mary Selfa | 10/10 | 6031 days | 1% |
| snodge | 9/10 | 6035 days | 1% |
| PaulR | 10/10 | 6066 days | 1% |
| Thomas Rust | 10/10 | 6101 days | 1% |
| SBlake | 10/10 | 6346 days | 1% |
| KathM | 8/10 | 6357 days | 1% |
| ToyalFrance | 10/10 | 6361 days | 1% |
| Donna | 10/10 | 6366 days | 1% |
| PeterG | 9/10 | 6374 days | 1% |
| NicoleG | 8/10 | 6374 days | 1% |
| ReneeA | 9/10 | 6389 days | 1% |
| Ans | 8/10 | 6414 days | 1% |
| Marga V | 10/10 | 6453 days | 1% |
| mehunt | 9/10 | 6454 days | 1% |
| lming60 | 6/10 | 6466 days | 1% |
| Bryony Wilson | 9/10 | 6721 days | 1% |
| Buys | 7/10 | 6746 days | 1% |
| Carole Roccia | 10/10 | 6782 days | 1% |
| Valeria Barouch | 10/10 | 6823 days | 1% |
| Katherine | 10/10 | 7097 days | 1% |
| Nissa | 10/10 | 7106 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
-2.23% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 117 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 | -2.20% |
| 198 | -2.21% |
| 199 | -2.22% |
| 200 | -2.23% |
| 201 | -2.24% |
| 202 | -2.26% |
| 203 | -2.27% |
| … | … |
Balancing Adjustment
0.41% 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.