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
96.57%
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 | 1705 days | 100% |
| Kylee Langdon | 9/10 | 1705 days | 99% |
| Nikki Bristol | 10/10 | 1736 days | 94% |
| shelagh gastrell | 10/10 | 1736 days | 94% |
| Clive Williams | 10/10 | 1797 days | 87% |
| Robin Mooring | 10/10 | 1797 days | 87% |
| Paddy O\\\'Connor | 9/10 | 1797 days | 86% |
| Liz Wade | 10/10 | 1825 days | 86% |
| Trevor | 10/10 | 1826 days | 86% |
| Linda | 10/10 | 1857 days | 85% |
| Pukerooster | 10/10 | 1857 days | 85% |
| T Alan Hatton | 10/10 | 1888 days | 84% |
| Emile | 10/10 | 1918 days | 83% |
| GODARD Tuatini | 10/10 | 1949 days | 82% |
| Ella | 10/10 | 1949 days | 82% |
| Sarah & Paul | 10/10 | 1949 days | 82% |
| Mary | 10/10 | 2010 days | 79% |
| Ricardo Nigro | 10/10 | 2102 days | 76% |
| beryl maehe rogers | 10/10 | 2132 days | 75% |
| Carlos Madrid | 9/10 | 2132 days | 75% |
| maryann de la haye | 10/10 | 2132 days | 75% |
| Kris | 10/10 | 2163 days | 74% |
| Jean-Martial MARENNE | 10/10 | 2163 days | 74% |
| Eleri | 10/10 | 2163 days | 74% |
| Richard Taylor | 10/10 | 2191 days | 73% |
| Jenny Hume | 10/10 | 2222 days | 72% |
| Ollie Bigelow | 10/10 | 2283 days | 70% |
| Kristine | 10/10 | 2283 days | 70% |
| Bill Lyon | 10/10 | 2283 days | 70% |
| Rob & Jan | 10/10 | 2283 days | 70% |
| geex25@gmail.com | 8/10 | 2283 days | 69% |
| Alex | 10/10 | 2314 days | 69% |
| Tara Holmes | 10/10 | 2314 days | 69% |
| Marg | 10/10 | 2314 days | 69% |
| Annette and Jan | 10/10 | 2314 days | 69% |
| Vanesa De la haza | 10/10 | 2344 days | 68% |
| Judy | 10/10 | 2344 days | 68% |
| Emanda | 10/10 | 2344 days | 68% |
| Mary | 10/10 | 2344 days | 68% |
| Paul from Australia | 10/10 | 2467 days | 64% |
| Brad, California | 10/10 | 2528 days | 62% |
| Sarah Killury | 10/10 | 2555 days | 61% |
| Kristin Svensson | 10/10 | 2586 days | 60% |
| Javier Mimbrera | 10/10 | 2708 days | 56% |
| Dave Rollison | 9/10 | 2892 days | 49% |
| Judit Van lanen | 9/10 | 2970 days | 42% |
| Thomas Nolwenn | 7/10 | 3018 days | 38% |
| Jilly Crew | 10/10 | 3073 days | 43% |
| Cj Bloomfield | 10/10 | 3196 days | 39% |
| Stephan Kirchenbaur | 8/10 | 3253 days | 33% |
| Eline Meijer | 7/10 | 3330 days | 29% |
| Ruth P | 10/10 | 3348 days | 34% |
| villemain pascale | 10/10 | 3379 days | 33% |
| Shelley Adderley | 10/10 | 3409 days | 32% |
| Niko Stange | 10/10 | 3592 days | 26% |
| Abi Fielder | 10/10 | 3651 days | 24% |
| MARYSE DUMAS | 9/10 | 3682 days | 23% |
| Karen Hale | 8/10 | 3682 days | 22% |
| Erik Hafuer | 10/10 | 3692 days | 20% |
| Bram and Laura | 9/10 | 3714 days | 19% |
| Polly Rider | 9/10 | 3718 days | 19% |
| Kyle S | 10/10 | 3774 days | 20% |
| Simon Mehlmann | 10/10 | 3966 days | 12% |
| Astrid | 10/10 | 3989 days | 12% |
| Miriam Grund | 8/10 | 3993 days | 11% |
| Brian | 9/10 | 4109 days | 8% |
| Martin & Carol | 10/10 | 4140 days | 7% |
| Christine & Andrew | 9/10 | 4232 days | 4% |
| Bonnie and David Appleby | 10/10 | 4354 days | 0% |
| Rob Walker | 10/10 | 4354 days | 0% |
| Brigitte | 9/10 | 4432 days | 15% |
| Andreas Garbin | 10/10 | 4432 days | 15% |
| cmhamlin | 10/10 | 4444 days | 16% |
| Fam von Hattem | 9/10 | 4456 days | 15% |
| Bodil Andersen | 10/10 | 4459 days | 15% |
| phudgb | 10/10 | 4505 days | 16% |
| Lukea | 10/10 | 4688 days | 16% |
| Huw Davies | 9/10 | 4694 days | 15% |
| Lisa Carey | 9/10 | 4705 days | 15% |
| Michael Touzer | 9/10 | 4714 days | 15% |
| Lucy Wilde | 9/10 | 4722 days | 15% |
| Miina Hyuonen | 8/10 | 4730 days | 14% |
| Dieter Mangold | 10/10 | 4731 days | 15% |
| Preben vil Helmsen | 10/10 | 4731 days | 15% |
| Rachel | 7/10 | 4733 days | 14% |
| Christian Apfel | 9/10 | 4736 days | 15% |
| Elizabeth Gardner | 9/10 | 4740 days | 15% |
| Fleur & Nils | 9/10 | 4741 days | 15% |
| kiwiconvert | 10/10 | 4748 days | 16% |
| ivanovskyv | 10/10 | 4779 days | 16% |
| Willem & Lilian | 9/10 | 4819 days | 15% |
| Lardy | 8/10 | 4827 days | 14% |
| piseagalba | 10/10 | 4840 days | 16% |
| katel86 | 10/10 | 4901 days | 16% |
| shelleyp | 10/10 | 5024 days | 16% |
| bdel1963 | 10/10 | 5024 days | 16% |
| Geoff Shutt | 9/10 | 5024 days | 16% |
| Ralph & Marloes Meyers | 8/10 | 5053 days | 14% |
| Helen Evans | 7/10 | 5068 days | 14% |
| Binder | 6/10 | 5069 days | 12% |
| Monica | 8/10 | 5081 days | 14% |
| Vincent | 9/10 | 5089 days | 15% |
| Kurmann/Kayser | 9/10 | 5091 days | 15% |
| Pascal | 9/10 | 5103 days | 15% |
| Kris | 10/10 | 5103 days | 15% |
| Sprangers | 9/10 | 5106 days | 15% |
| ianbateup | 10/10 | 5113 days | 16% |
| Lance | 10/10 | 5205 days | 16% |
| Papu | 10/10 | 5205 days | 16% |
| marisraneth | 8/10 | 5419 days | 14% |
| john england | 10/10 | 5450 days | 16% |
| Mary Selfa | 10/10 | 5474 days | 15% |
| snodge | 9/10 | 5478 days | 16% |
| PaulR | 10/10 | 5509 days | 16% |
| Thomas Rust | 10/10 | 5544 days | 15% |
| SBlake | 10/10 | 5789 days | 15% |
| KathM | 8/10 | 5800 days | 14% |
| ToyalFrance | 10/10 | 5804 days | 15% |
| Donna | 10/10 | 5809 days | 15% |
| PeterG | 9/10 | 5817 days | 15% |
| NicoleG | 8/10 | 5817 days | 14% |
| ReneeA | 9/10 | 5832 days | 15% |
| Ans | 8/10 | 5857 days | 14% |
| Marga V | 10/10 | 5896 days | 16% |
| mehunt | 9/10 | 5896 days | 16% |
| lming60 | 6/10 | 5909 days | 14% |
| Bryony Wilson | 9/10 | 6164 days | 15% |
| Buys | 7/10 | 6189 days | 14% |
| Carole Roccia | 10/10 | 6225 days | 15% |
| Valeria Barouch | 10/10 | 6266 days | 15% |
| Katherine | 10/10 | 6540 days | 15% |
| Nissa | 10/10 | 6549 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
-4.14% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 49 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 | -4.08% |
| 198 | -4.10% |
| 199 | -4.12% |
| 200 | -4.14% |
| 201 | -4.16% |
| 202 | -4.18% |
| 203 | -4.20% |
| … | … |
Balancing Adjustment
0.70% 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.