Kia ora, 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 | 1634 days | 100% |
| Kylee Langdon | 9/10 | 1634 days | 99% |
| Nikki Bristol | 10/10 | 1665 days | 91% |
| shelagh gastrell | 10/10 | 1665 days | 91% |
| Clive Williams | 10/10 | 1726 days | 78% |
| Robin Mooring | 10/10 | 1726 days | 78% |
| Paddy O\\\'Connor | 9/10 | 1726 days | 78% |
| Liz Wade | 10/10 | 1755 days | 75% |
| Trevor | 10/10 | 1755 days | 75% |
| Linda | 10/10 | 1786 days | 72% |
| Pukerooster | 10/10 | 1786 days | 72% |
| T Alan Hatton | 10/10 | 1817 days | 71% |
| Emile | 10/10 | 1847 days | 70% |
| GODARD Tuatini | 10/10 | 1878 days | 69% |
| Ella | 10/10 | 1878 days | 69% |
| Sarah & Paul | 10/10 | 1878 days | 69% |
| Mary | 10/10 | 1939 days | 67% |
| Ricardo Nigro | 10/10 | 2031 days | 65% |
| beryl maehe rogers | 10/10 | 2061 days | 64% |
| Carlos Madrid | 9/10 | 2061 days | 63% |
| maryann de la haye | 10/10 | 2061 days | 64% |
| Kris | 10/10 | 2092 days | 63% |
| Jean-Martial MARENNE | 10/10 | 2092 days | 63% |
| Eleri | 10/10 | 2092 days | 63% |
| Richard Taylor | 10/10 | 2120 days | 62% |
| Jenny Hume | 10/10 | 2151 days | 62% |
| Ollie Bigelow | 10/10 | 2212 days | 60% |
| Kristine | 10/10 | 2212 days | 60% |
| Bill Lyon | 10/10 | 2212 days | 60% |
| Rob & Jan | 10/10 | 2212 days | 60% |
| geex25@gmail.com | 8/10 | 2212 days | 59% |
| Alex | 10/10 | 2243 days | 59% |
| Tara Holmes | 10/10 | 2243 days | 59% |
| Marg | 10/10 | 2243 days | 59% |
| Annette and Jan | 10/10 | 2243 days | 59% |
| Vanesa De la haza | 10/10 | 2273 days | 58% |
| Judy | 10/10 | 2273 days | 58% |
| Emanda | 10/10 | 2273 days | 58% |
| Mary | 10/10 | 2273 days | 58% |
| Paul from Australia | 10/10 | 2396 days | 55% |
| Brad, California | 10/10 | 2457 days | 53% |
| Sarah Killury | 10/10 | 2485 days | 52% |
| Kristin Svensson | 10/10 | 2516 days | 51% |
| Javier Mimbrera | 10/10 | 2638 days | 48% |
| Dave Rollison | 9/10 | 2822 days | 43% |
| Judit Van lanen | 9/10 | 2899 days | 36% |
| Thomas Nolwenn | 7/10 | 2947 days | 33% |
| Jilly Crew | 10/10 | 3003 days | 38% |
| Cj Bloomfield | 10/10 | 3126 days | 35% |
| Stephan Kirchenbaur | 8/10 | 3182 days | 29% |
| Eline Meijer | 7/10 | 3259 days | 26% |
| Ruth P | 10/10 | 3278 days | 30% |
| villemain pascale | 10/10 | 3308 days | 29% |
| Shelley Adderley | 10/10 | 3339 days | 29% |
| Niko Stange | 10/10 | 3522 days | 24% |
| Abi Fielder | 10/10 | 3581 days | 22% |
| MARYSE DUMAS | 9/10 | 3612 days | 21% |
| Karen Hale | 8/10 | 3612 days | 21% |
| Erik Hafuer | 10/10 | 3621 days | 19% |
| Bram and Laura | 9/10 | 3643 days | 18% |
| Polly Rider | 9/10 | 3647 days | 18% |
| Kyle S | 10/10 | 3704 days | 19% |
| Simon Mehlmann | 10/10 | 3895 days | 12% |
| Astrid | 10/10 | 3918 days | 13% |
| Miriam Grund | 8/10 | 3922 days | 11% |
| Brian | 9/10 | 4038 days | 9% |
| Martin & Carol | 10/10 | 4069 days | 8% |
| Christine & Andrew | 9/10 | 4161 days | 6% |
| Bonnie and David Appleby | 10/10 | 4283 days | 2% |
| Rob Walker | 10/10 | 4283 days | 2% |
| Brigitte | 9/10 | 4361 days | 0% |
| Andreas Garbin | 10/10 | 4361 days | 0% |
| cmhamlin | 10/10 | 4373 days | 0% |
| Fam von Hattem | 9/10 | 4385 days | 12% |
| Bodil Andersen | 10/10 | 4388 days | 13% |
| phudgb | 10/10 | 4434 days | 14% |
| Lukea | 10/10 | 4617 days | 14% |
| Huw Davies | 9/10 | 4623 days | 12% |
| Lisa Carey | 9/10 | 4634 days | 12% |
| Michael Touzer | 9/10 | 4643 days | 12% |
| Lucy Wilde | 9/10 | 4651 days | 12% |
| Miina Hyuonen | 8/10 | 4659 days | 12% |
| Dieter Mangold | 10/10 | 4660 days | 13% |
| Preben vil Helmsen | 10/10 | 4660 days | 13% |
| Rachel | 7/10 | 4662 days | 12% |
| Christian Apfel | 9/10 | 4665 days | 12% |
| Elizabeth Gardner | 9/10 | 4669 days | 12% |
| Fleur & Nils | 9/10 | 4670 days | 12% |
| kiwiconvert | 10/10 | 4677 days | 14% |
| ivanovskyv | 10/10 | 4708 days | 14% |
| Willem & Lilian | 9/10 | 4748 days | 12% |
| Lardy | 8/10 | 4756 days | 12% |
| piseagalba | 10/10 | 4769 days | 14% |
| katel86 | 10/10 | 4830 days | 14% |
| shelleyp | 10/10 | 4953 days | 14% |
| bdel1963 | 10/10 | 4953 days | 14% |
| Geoff Shutt | 9/10 | 4953 days | 14% |
| Ralph & Marloes Meyers | 8/10 | 4982 days | 12% |
| Helen Evans | 7/10 | 4997 days | 12% |
| Binder | 6/10 | 4998 days | 11% |
| Monica | 8/10 | 5010 days | 12% |
| Vincent | 9/10 | 5018 days | 12% |
| Kurmann/Kayser | 9/10 | 5020 days | 12% |
| Pascal | 9/10 | 5032 days | 12% |
| Kris | 10/10 | 5032 days | 13% |
| Sprangers | 9/10 | 5035 days | 12% |
| ianbateup | 10/10 | 5042 days | 14% |
| Lance | 10/10 | 5134 days | 14% |
| Papu | 10/10 | 5134 days | 14% |
| marisraneth | 8/10 | 5348 days | 12% |
| john england | 10/10 | 5379 days | 14% |
| Mary Selfa | 10/10 | 5403 days | 13% |
| snodge | 9/10 | 5407 days | 14% |
| PaulR | 10/10 | 5438 days | 14% |
| Thomas Rust | 10/10 | 5473 days | 13% |
| SBlake | 10/10 | 5718 days | 13% |
| KathM | 8/10 | 5730 days | 12% |
| ToyalFrance | 10/10 | 5733 days | 13% |
| Donna | 10/10 | 5739 days | 13% |
| PeterG | 9/10 | 5746 days | 12% |
| NicoleG | 8/10 | 5746 days | 12% |
| ReneeA | 9/10 | 5761 days | 12% |
| Ans | 8/10 | 5787 days | 12% |
| Marga V | 10/10 | 5826 days | 14% |
| mehunt | 9/10 | 5826 days | 14% |
| lming60 | 6/10 | 5839 days | 12% |
| Bryony Wilson | 9/10 | 6093 days | 12% |
| Buys | 7/10 | 6118 days | 12% |
| Carole Roccia | 10/10 | 6154 days | 13% |
| Valeria Barouch | 10/10 | 6195 days | 13% |
| Katherine | 10/10 | 6469 days | 13% |
| Nissa | 10/10 | 6478 days | 13% |
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 43 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.