G'day, 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 | 1784 days | 100% |
| Kylee Langdon | 9/10 | 1784 days | 99% |
| Nikki Bristol | 10/10 | 1815 days | 98% |
| shelagh gastrell | 10/10 | 1815 days | 98% |
| Clive Williams | 10/10 | 1876 days | 96% |
| Robin Mooring | 10/10 | 1876 days | 96% |
| Paddy O\\\'Connor | 9/10 | 1876 days | 95% |
| Liz Wade | 10/10 | 1904 days | 95% |
| Trevor | 10/10 | 1905 days | 95% |
| Linda | 10/10 | 1936 days | 94% |
| Pukerooster | 10/10 | 1936 days | 94% |
| T Alan Hatton | 10/10 | 1967 days | 92% |
| Emile | 10/10 | 1997 days | 91% |
| GODARD Tuatini | 10/10 | 2028 days | 90% |
| Ella | 10/10 | 2028 days | 90% |
| Sarah & Paul | 10/10 | 2028 days | 90% |
| Mary | 10/10 | 2089 days | 88% |
| Ricardo Nigro | 10/10 | 2181 days | 84% |
| beryl maehe rogers | 10/10 | 2211 days | 83% |
| Carlos Madrid | 9/10 | 2211 days | 82% |
| maryann de la haye | 10/10 | 2211 days | 83% |
| Kris | 10/10 | 2242 days | 82% |
| Jean-Martial MARENNE | 10/10 | 2242 days | 82% |
| Eleri | 10/10 | 2242 days | 82% |
| Richard Taylor | 10/10 | 2270 days | 81% |
| Jenny Hume | 10/10 | 2301 days | 79% |
| Ollie Bigelow | 10/10 | 2362 days | 77% |
| Kristine | 10/10 | 2362 days | 77% |
| Bill Lyon | 10/10 | 2362 days | 77% |
| Rob & Jan | 10/10 | 2362 days | 77% |
| geex25@gmail.com | 8/10 | 2362 days | 75% |
| Alex | 10/10 | 2393 days | 76% |
| Tara Holmes | 10/10 | 2393 days | 76% |
| Marg | 10/10 | 2393 days | 76% |
| Annette and Jan | 10/10 | 2393 days | 76% |
| Vanesa De la haza | 10/10 | 2423 days | 74% |
| Judy | 10/10 | 2423 days | 74% |
| Emanda | 10/10 | 2423 days | 74% |
| Mary | 10/10 | 2423 days | 74% |
| Paul from Australia | 10/10 | 2546 days | 70% |
| Brad, California | 10/10 | 2607 days | 67% |
| Sarah Killury | 10/10 | 2634 days | 66% |
| Kristin Svensson | 10/10 | 2665 days | 65% |
| Javier Mimbrera | 10/10 | 2787 days | 60% |
| Dave Rollison | 9/10 | 2971 days | 52% |
| Judit Van lanen | 9/10 | 3049 days | 44% |
| Thomas Nolwenn | 7/10 | 3097 days | 39% |
| Jilly Crew | 10/10 | 3152 days | 46% |
| Cj Bloomfield | 10/10 | 3275 days | 41% |
| Stephan Kirchenbaur | 8/10 | 3332 days | 34% |
| Eline Meijer | 7/10 | 3409 days | 29% |
| Ruth P | 10/10 | 3427 days | 35% |
| villemain pascale | 10/10 | 3458 days | 34% |
| Shelley Adderley | 10/10 | 3488 days | 32% |
| Niko Stange | 10/10 | 3671 days | 25% |
| Abi Fielder | 10/10 | 3730 days | 23% |
| MARYSE DUMAS | 9/10 | 3761 days | 21% |
| Karen Hale | 8/10 | 3761 days | 21% |
| Erik Hafuer | 10/10 | 3771 days | 19% |
| Bram and Laura | 9/10 | 3793 days | 18% |
| Polly Rider | 9/10 | 3797 days | 18% |
| Kyle S | 10/10 | 3853 days | 18% |
| Simon Mehlmann | 10/10 | 4045 days | 9% |
| Astrid | 10/10 | 4068 days | 10% |
| Miriam Grund | 8/10 | 4072 days | 8% |
| Brian | 9/10 | 4188 days | 5% |
| Martin & Carol | 10/10 | 4219 days | 4% |
| Christine & Andrew | 9/10 | 4311 days | 0% |
| Bonnie and David Appleby | 10/10 | 4433 days | 17% |
| Rob Walker | 10/10 | 4433 days | 17% |
| Brigitte | 9/10 | 4511 days | 15% |
| Andreas Garbin | 10/10 | 4511 days | 15% |
| cmhamlin | 10/10 | 4523 days | 17% |
| Fam von Hattem | 9/10 | 4535 days | 15% |
| Bodil Andersen | 10/10 | 4538 days | 15% |
| phudgb | 10/10 | 4584 days | 17% |
| Lukea | 10/10 | 4767 days | 17% |
| Huw Davies | 9/10 | 4773 days | 15% |
| Lisa Carey | 9/10 | 4784 days | 15% |
| Michael Touzer | 9/10 | 4793 days | 15% |
| Lucy Wilde | 9/10 | 4801 days | 15% |
| Miina Hyuonen | 8/10 | 4809 days | 15% |
| Dieter Mangold | 10/10 | 4810 days | 15% |
| Preben vil Helmsen | 10/10 | 4810 days | 15% |
| Rachel | 7/10 | 4812 days | 14% |
| Christian Apfel | 9/10 | 4815 days | 15% |
| Elizabeth Gardner | 9/10 | 4819 days | 15% |
| Fleur & Nils | 9/10 | 4820 days | 15% |
| kiwiconvert | 10/10 | 4827 days | 17% |
| ivanovskyv | 10/10 | 4858 days | 17% |
| Willem & Lilian | 9/10 | 4898 days | 15% |
| Lardy | 8/10 | 4906 days | 15% |
| piseagalba | 10/10 | 4919 days | 17% |
| katel86 | 10/10 | 4980 days | 17% |
| shelleyp | 10/10 | 5103 days | 17% |
| bdel1963 | 10/10 | 5103 days | 17% |
| Geoff Shutt | 9/10 | 5103 days | 17% |
| Ralph & Marloes Meyers | 8/10 | 5132 days | 15% |
| Helen Evans | 7/10 | 5147 days | 14% |
| Binder | 6/10 | 5148 days | 13% |
| Monica | 8/10 | 5160 days | 15% |
| Vincent | 9/10 | 5168 days | 15% |
| Kurmann/Kayser | 9/10 | 5170 days | 15% |
| Pascal | 9/10 | 5182 days | 15% |
| Kris | 10/10 | 5182 days | 15% |
| Sprangers | 9/10 | 5185 days | 15% |
| ianbateup | 10/10 | 5192 days | 17% |
| Lance | 10/10 | 5284 days | 17% |
| Papu | 10/10 | 5284 days | 17% |
| marisraneth | 8/10 | 5498 days | 15% |
| john england | 10/10 | 5529 days | 17% |
| Mary Selfa | 10/10 | 5553 days | 15% |
| snodge | 9/10 | 5557 days | 17% |
| PaulR | 10/10 | 5588 days | 17% |
| Thomas Rust | 10/10 | 5623 days | 15% |
| SBlake | 10/10 | 5868 days | 15% |
| KathM | 8/10 | 5879 days | 15% |
| ToyalFrance | 10/10 | 5883 days | 15% |
| Donna | 10/10 | 5888 days | 15% |
| PeterG | 9/10 | 5896 days | 15% |
| NicoleG | 8/10 | 5896 days | 15% |
| ReneeA | 9/10 | 5911 days | 15% |
| Ans | 8/10 | 5936 days | 15% |
| Marga V | 10/10 | 5975 days | 17% |
| mehunt | 9/10 | 5976 days | 17% |
| lming60 | 6/10 | 5988 days | 15% |
| Bryony Wilson | 9/10 | 6243 days | 15% |
| Buys | 7/10 | 6268 days | 14% |
| Carole Roccia | 10/10 | 6304 days | 15% |
| Valeria Barouch | 10/10 | 6345 days | 15% |
| Katherine | 10/10 | 6619 days | 15% |
| Nissa | 10/10 | 6628 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
-3.36% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 69 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 | -3.31% |
| 198 | -3.32% |
| 199 | -3.34% |
| 200 | -3.36% |
| 201 | -3.37% |
| 202 | -3.39% |
| 203 | -3.41% |
| … | … |
Balancing Adjustment
0.61% 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
94%
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.