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
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 | 1629 days | 100% |
| Kylee Langdon | 9/10 | 1629 days | 99% |
| Nikki Bristol | 10/10 | 1660 days | 91% |
| shelagh gastrell | 10/10 | 1660 days | 91% |
| Clive Williams | 10/10 | 1721 days | 78% |
| Robin Mooring | 10/10 | 1721 days | 78% |
| Paddy O\\\'Connor | 9/10 | 1721 days | 77% |
| Liz Wade | 10/10 | 1750 days | 74% |
| Trevor | 10/10 | 1750 days | 74% |
| Linda | 10/10 | 1781 days | 71% |
| Pukerooster | 10/10 | 1781 days | 71% |
| T Alan Hatton | 10/10 | 1812 days | 70% |
| Emile | 10/10 | 1842 days | 69% |
| GODARD Tuatini | 10/10 | 1873 days | 68% |
| Ella | 10/10 | 1873 days | 68% |
| Sarah & Paul | 10/10 | 1873 days | 68% |
| Mary | 10/10 | 1934 days | 66% |
| Ricardo Nigro | 10/10 | 2026 days | 64% |
| beryl maehe rogers | 10/10 | 2056 days | 63% |
| Carlos Madrid | 9/10 | 2056 days | 62% |
| maryann de la haye | 10/10 | 2056 days | 63% |
| Kris | 10/10 | 2087 days | 62% |
| Jean-Martial MARENNE | 10/10 | 2087 days | 62% |
| Eleri | 10/10 | 2087 days | 62% |
| Richard Taylor | 10/10 | 2115 days | 62% |
| Jenny Hume | 10/10 | 2146 days | 61% |
| Ollie Bigelow | 10/10 | 2207 days | 59% |
| Kristine | 10/10 | 2207 days | 59% |
| Bill Lyon | 10/10 | 2207 days | 59% |
| Rob & Jan | 10/10 | 2207 days | 59% |
| geex25@gmail.com | 8/10 | 2207 days | 58% |
| Alex | 10/10 | 2238 days | 58% |
| Tara Holmes | 10/10 | 2238 days | 58% |
| Marg | 10/10 | 2238 days | 58% |
| Annette and Jan | 10/10 | 2238 days | 58% |
| Vanesa De la haza | 10/10 | 2268 days | 57% |
| Judy | 10/10 | 2268 days | 57% |
| Emanda | 10/10 | 2268 days | 57% |
| Mary | 10/10 | 2268 days | 57% |
| Paul from Australia | 10/10 | 2391 days | 54% |
| Brad, California | 10/10 | 2452 days | 52% |
| Sarah Killury | 10/10 | 2480 days | 52% |
| Kristin Svensson | 10/10 | 2511 days | 51% |
| Javier Mimbrera | 10/10 | 2633 days | 47% |
| Dave Rollison | 9/10 | 2817 days | 42% |
| Judit Van lanen | 9/10 | 2894 days | 36% |
| Thomas Nolwenn | 7/10 | 2942 days | 32% |
| Jilly Crew | 10/10 | 2998 days | 37% |
| Cj Bloomfield | 10/10 | 3121 days | 34% |
| Stephan Kirchenbaur | 8/10 | 3177 days | 29% |
| Eline Meijer | 7/10 | 3254 days | 25% |
| Ruth P | 10/10 | 3273 days | 30% |
| villemain pascale | 10/10 | 3303 days | 29% |
| Shelley Adderley | 10/10 | 3334 days | 28% |
| Niko Stange | 10/10 | 3517 days | 23% |
| Abi Fielder | 10/10 | 3576 days | 22% |
| MARYSE DUMAS | 9/10 | 3607 days | 21% |
| Karen Hale | 8/10 | 3607 days | 20% |
| Erik Hafuer | 10/10 | 3616 days | 18% |
| Bram and Laura | 9/10 | 3638 days | 18% |
| Polly Rider | 9/10 | 3642 days | 18% |
| Kyle S | 10/10 | 3699 days | 18% |
| Simon Mehlmann | 10/10 | 3890 days | 12% |
| Astrid | 10/10 | 3913 days | 12% |
| Miriam Grund | 8/10 | 3917 days | 11% |
| Brian | 9/10 | 4033 days | 9% |
| Martin & Carol | 10/10 | 4064 days | 8% |
| Christine & Andrew | 9/10 | 4156 days | 6% |
| Bonnie and David Appleby | 10/10 | 4278 days | 2% |
| Rob Walker | 10/10 | 4278 days | 2% |
| Brigitte | 9/10 | 4356 days | 0% |
| Andreas Garbin | 10/10 | 4356 days | 0% |
| cmhamlin | 10/10 | 4368 days | 0% |
| Fam von Hattem | 9/10 | 4380 days | 12% |
| Bodil Andersen | 10/10 | 4383 days | 12% |
| phudgb | 10/10 | 4429 days | 14% |
| Lukea | 10/10 | 4612 days | 14% |
| Huw Davies | 9/10 | 4618 days | 12% |
| Lisa Carey | 9/10 | 4629 days | 12% |
| Michael Touzer | 9/10 | 4638 days | 12% |
| Lucy Wilde | 9/10 | 4646 days | 12% |
| Miina Hyuonen | 8/10 | 4654 days | 12% |
| Dieter Mangold | 10/10 | 4655 days | 12% |
| Preben vil Helmsen | 10/10 | 4655 days | 12% |
| Rachel | 7/10 | 4657 days | 11% |
| Christian Apfel | 9/10 | 4660 days | 12% |
| Elizabeth Gardner | 9/10 | 4664 days | 12% |
| Fleur & Nils | 9/10 | 4665 days | 12% |
| kiwiconvert | 10/10 | 4672 days | 14% |
| ivanovskyv | 10/10 | 4703 days | 14% |
| Willem & Lilian | 9/10 | 4743 days | 12% |
| Lardy | 8/10 | 4751 days | 12% |
| piseagalba | 10/10 | 4764 days | 14% |
| katel86 | 10/10 | 4825 days | 14% |
| shelleyp | 10/10 | 4948 days | 14% |
| bdel1963 | 10/10 | 4948 days | 14% |
| Geoff Shutt | 9/10 | 4948 days | 13% |
| Ralph & Marloes Meyers | 8/10 | 4977 days | 12% |
| Helen Evans | 7/10 | 4992 days | 11% |
| Binder | 6/10 | 4993 days | 10% |
| Monica | 8/10 | 5005 days | 12% |
| Vincent | 9/10 | 5013 days | 12% |
| Kurmann/Kayser | 9/10 | 5015 days | 12% |
| Pascal | 9/10 | 5027 days | 12% |
| Kris | 10/10 | 5027 days | 12% |
| Sprangers | 9/10 | 5030 days | 12% |
| ianbateup | 10/10 | 5037 days | 14% |
| Lance | 10/10 | 5129 days | 14% |
| Papu | 10/10 | 5129 days | 14% |
| marisraneth | 8/10 | 5343 days | 12% |
| john england | 10/10 | 5374 days | 14% |
| Mary Selfa | 10/10 | 5398 days | 12% |
| snodge | 9/10 | 5402 days | 13% |
| PaulR | 10/10 | 5433 days | 14% |
| Thomas Rust | 10/10 | 5468 days | 12% |
| SBlake | 10/10 | 5713 days | 12% |
| KathM | 8/10 | 5725 days | 12% |
| ToyalFrance | 10/10 | 5728 days | 12% |
| Donna | 10/10 | 5733 days | 12% |
| PeterG | 9/10 | 5741 days | 12% |
| NicoleG | 8/10 | 5741 days | 12% |
| ReneeA | 9/10 | 5756 days | 12% |
| Ans | 8/10 | 5781 days | 12% |
| Marga V | 10/10 | 5820 days | 14% |
| mehunt | 9/10 | 5821 days | 13% |
| lming60 | 6/10 | 5834 days | 12% |
| Bryony Wilson | 9/10 | 6088 days | 12% |
| Buys | 7/10 | 6113 days | 11% |
| Carole Roccia | 10/10 | 6149 days | 12% |
| Valeria Barouch | 10/10 | 6190 days | 12% |
| Katherine | 10/10 | 6464 days | 12% |
| Nissa | 10/10 | 6473 days | 12% |
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
-4.02% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 44 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 | -3.96% |
| 198 | -3.98% |
| 199 | -4.00% |
| 200 | -4.02% |
| 201 | -4.04% |
| 202 | -4.06% |
| 203 | -4.08% |
| … | … |
Balancing Adjustment
0.68% 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.