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
96.59%
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 | 1838 days | 100% |
| Kylee Langdon | 9/10 | 1838 days | 99% |
| Nikki Bristol | 10/10 | 1869 days | 99% |
| shelagh gastrell | 10/10 | 1869 days | 99% |
| Clive Williams | 10/10 | 1930 days | 96% |
| Robin Mooring | 10/10 | 1930 days | 96% |
| Paddy O\\\'Connor | 9/10 | 1930 days | 95% |
| Liz Wade | 10/10 | 1959 days | 95% |
| Trevor | 10/10 | 1959 days | 95% |
| Linda | 10/10 | 1990 days | 94% |
| Pukerooster | 10/10 | 1990 days | 94% |
| T Alan Hatton | 10/10 | 2021 days | 93% |
| Emile | 10/10 | 2051 days | 92% |
| GODARD Tuatini | 10/10 | 2082 days | 90% |
| Ella | 10/10 | 2082 days | 90% |
| Sarah & Paul | 10/10 | 2082 days | 90% |
| Mary | 10/10 | 2143 days | 88% |
| Ricardo Nigro | 10/10 | 2235 days | 84% |
| beryl maehe rogers | 10/10 | 2265 days | 83% |
| Carlos Madrid | 9/10 | 2265 days | 82% |
| maryann de la haye | 10/10 | 2265 days | 83% |
| Kris | 10/10 | 2296 days | 82% |
| Jean-Martial MARENNE | 10/10 | 2296 days | 82% |
| Eleri | 10/10 | 2296 days | 82% |
| Richard Taylor | 10/10 | 2324 days | 81% |
| Jenny Hume | 10/10 | 2355 days | 80% |
| Ollie Bigelow | 10/10 | 2416 days | 77% |
| Kristine | 10/10 | 2416 days | 77% |
| Bill Lyon | 10/10 | 2416 days | 77% |
| Rob & Jan | 10/10 | 2416 days | 77% |
| geex25@gmail.com | 8/10 | 2416 days | 76% |
| Alex | 10/10 | 2447 days | 76% |
| Tara Holmes | 10/10 | 2447 days | 76% |
| Marg | 10/10 | 2447 days | 76% |
| Annette and Jan | 10/10 | 2447 days | 76% |
| Vanesa De la haza | 10/10 | 2477 days | 75% |
| Judy | 10/10 | 2477 days | 75% |
| Emanda | 10/10 | 2477 days | 75% |
| Mary | 10/10 | 2477 days | 75% |
| Paul from Australia | 10/10 | 2600 days | 70% |
| Brad, California | 10/10 | 2661 days | 67% |
| Sarah Killury | 10/10 | 2689 days | 66% |
| Kristin Svensson | 10/10 | 2720 days | 65% |
| Javier Mimbrera | 10/10 | 2842 days | 60% |
| Dave Rollison | 9/10 | 3026 days | 52% |
| Judit Van lanen | 9/10 | 3103 days | 44% |
| Thomas Nolwenn | 7/10 | 3151 days | 40% |
| Jilly Crew | 10/10 | 3207 days | 46% |
| Cj Bloomfield | 10/10 | 3330 days | 41% |
| Stephan Kirchenbaur | 8/10 | 3386 days | 34% |
| Eline Meijer | 7/10 | 3463 days | 30% |
| Ruth P | 10/10 | 3482 days | 35% |
| villemain pascale | 10/10 | 3512 days | 34% |
| Shelley Adderley | 10/10 | 3543 days | 33% |
| Niko Stange | 10/10 | 3726 days | 25% |
| Abi Fielder | 10/10 | 3785 days | 23% |
| MARYSE DUMAS | 9/10 | 3816 days | 22% |
| Karen Hale | 8/10 | 3816 days | 21% |
| Erik Hafuer | 10/10 | 3825 days | 19% |
| Bram and Laura | 9/10 | 3847 days | 18% |
| Polly Rider | 9/10 | 3851 days | 18% |
| Kyle S | 10/10 | 3908 days | 18% |
| Simon Mehlmann | 10/10 | 4099 days | 9% |
| Astrid | 10/10 | 4122 days | 10% |
| Miriam Grund | 8/10 | 4126 days | 8% |
| Brian | 9/10 | 4242 days | 5% |
| Martin & Carol | 10/10 | 4273 days | 4% |
| Christine & Andrew | 9/10 | 4365 days | 0% |
| Bonnie and David Appleby | 10/10 | 4487 days | 20% |
| Rob Walker | 10/10 | 4487 days | 20% |
| Brigitte | 9/10 | 4565 days | 17% |
| Andreas Garbin | 10/10 | 4565 days | 18% |
| cmhamlin | 10/10 | 4577 days | 20% |
| Fam von Hattem | 9/10 | 4589 days | 17% |
| Bodil Andersen | 10/10 | 4592 days | 18% |
| phudgb | 10/10 | 4638 days | 20% |
| Lukea | 10/10 | 4821 days | 20% |
| Huw Davies | 9/10 | 4827 days | 17% |
| Lisa Carey | 9/10 | 4838 days | 17% |
| Michael Touzer | 9/10 | 4847 days | 17% |
| Lucy Wilde | 9/10 | 4855 days | 17% |
| Miina Hyuonen | 8/10 | 4863 days | 17% |
| Dieter Mangold | 10/10 | 4864 days | 18% |
| Preben vil Helmsen | 10/10 | 4864 days | 18% |
| Rachel | 7/10 | 4866 days | 16% |
| Christian Apfel | 9/10 | 4869 days | 17% |
| Elizabeth Gardner | 9/10 | 4873 days | 17% |
| Fleur & Nils | 9/10 | 4874 days | 17% |
| kiwiconvert | 10/10 | 4881 days | 20% |
| ivanovskyv | 10/10 | 4912 days | 20% |
| Willem & Lilian | 9/10 | 4952 days | 17% |
| Lardy | 8/10 | 4960 days | 17% |
| piseagalba | 10/10 | 4973 days | 20% |
| katel86 | 10/10 | 5034 days | 20% |
| shelleyp | 10/10 | 5157 days | 20% |
| bdel1963 | 10/10 | 5157 days | 20% |
| Geoff Shutt | 9/10 | 5157 days | 19% |
| Ralph & Marloes Meyers | 8/10 | 5186 days | 17% |
| Helen Evans | 7/10 | 5201 days | 16% |
| Binder | 6/10 | 5202 days | 15% |
| Monica | 8/10 | 5214 days | 17% |
| Vincent | 9/10 | 5222 days | 17% |
| Kurmann/Kayser | 9/10 | 5224 days | 17% |
| Pascal | 9/10 | 5236 days | 17% |
| Kris | 10/10 | 5236 days | 18% |
| Sprangers | 9/10 | 5239 days | 17% |
| ianbateup | 10/10 | 5246 days | 20% |
| Lance | 10/10 | 5338 days | 20% |
| Papu | 10/10 | 5338 days | 20% |
| marisraneth | 8/10 | 5552 days | 17% |
| john england | 10/10 | 5583 days | 20% |
| Mary Selfa | 10/10 | 5607 days | 18% |
| snodge | 9/10 | 5611 days | 19% |
| PaulR | 10/10 | 5642 days | 20% |
| Thomas Rust | 10/10 | 5677 days | 18% |
| SBlake | 10/10 | 5922 days | 18% |
| KathM | 8/10 | 5934 days | 17% |
| ToyalFrance | 10/10 | 5937 days | 18% |
| Donna | 10/10 | 5942 days | 18% |
| PeterG | 9/10 | 5950 days | 17% |
| NicoleG | 8/10 | 5950 days | 17% |
| ReneeA | 9/10 | 5965 days | 17% |
| Ans | 8/10 | 5990 days | 17% |
| Marga V | 10/10 | 6029 days | 20% |
| mehunt | 9/10 | 6030 days | 19% |
| lming60 | 6/10 | 6043 days | 17% |
| Bryony Wilson | 9/10 | 6297 days | 17% |
| Buys | 7/10 | 6322 days | 16% |
| Carole Roccia | 10/10 | 6358 days | 18% |
| Valeria Barouch | 10/10 | 6399 days | 18% |
| Katherine | 10/10 | 6673 days | 18% |
| Nissa | 10/10 | 6682 days | 18% |
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
-2.25% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 114 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 | -2.21% |
| 198 | -2.23% |
| 199 | -2.24% |
| 200 | -2.25% |
| 201 | -2.26% |
| 202 | -2.27% |
| 203 | -2.28% |
| … | … |
Balancing Adjustment
0.50% 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
95%
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.