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.
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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 | 1769 days | 100% |
| Kylee Langdon | 9/10 | 1769 days | 99% |
| Nikki Bristol | 10/10 | 1800 days | 97% |
| shelagh gastrell | 10/10 | 1800 days | 97% |
| Clive Williams | 10/10 | 1862 days | 95% |
| Robin Mooring | 10/10 | 1862 days | 95% |
| Paddy O\\\'Connor | 9/10 | 1862 days | 94% |
| Liz Wade | 10/10 | 1890 days | 94% |
| Trevor | 10/10 | 1891 days | 94% |
| Linda | 10/10 | 1922 days | 93% |
| Pukerooster | 10/10 | 1922 days | 93% |
| T Alan Hatton | 10/10 | 1953 days | 91% |
| Emile | 10/10 | 1983 days | 90% |
| GODARD Tuatini | 10/10 | 2014 days | 89% |
| Ella | 10/10 | 2014 days | 89% |
| Sarah & Paul | 10/10 | 2014 days | 89% |
| Mary | 10/10 | 2074 days | 87% |
| Ricardo Nigro | 10/10 | 2166 days | 83% |
| beryl maehe rogers | 10/10 | 2197 days | 82% |
| Carlos Madrid | 9/10 | 2197 days | 81% |
| maryann de la haye | 10/10 | 2197 days | 82% |
| Kris | 10/10 | 2228 days | 81% |
| Jean-Martial MARENNE | 10/10 | 2228 days | 81% |
| Eleri | 10/10 | 2228 days | 81% |
| Richard Taylor | 10/10 | 2256 days | 80% |
| Jenny Hume | 10/10 | 2287 days | 78% |
| Ollie Bigelow | 10/10 | 2348 days | 76% |
| Kristine | 10/10 | 2348 days | 76% |
| Bill Lyon | 10/10 | 2348 days | 76% |
| Rob & Jan | 10/10 | 2348 days | 76% |
| geex25@gmail.com | 8/10 | 2348 days | 74% |
| Alex | 10/10 | 2379 days | 75% |
| Tara Holmes | 10/10 | 2379 days | 75% |
| Marg | 10/10 | 2379 days | 75% |
| Annette and Jan | 10/10 | 2379 days | 75% |
| Vanesa De la haza | 10/10 | 2408 days | 74% |
| Judy | 10/10 | 2408 days | 74% |
| Emanda | 10/10 | 2408 days | 74% |
| Mary | 10/10 | 2408 days | 74% |
| Paul from Australia | 10/10 | 2531 days | 69% |
| Brad, California | 10/10 | 2593 days | 66% |
| Sarah Killury | 10/10 | 2620 days | 65% |
| Kristin Svensson | 10/10 | 2651 days | 64% |
| Javier Mimbrera | 10/10 | 2773 days | 59% |
| Dave Rollison | 9/10 | 2957 days | 52% |
| Judit Van lanen | 9/10 | 3035 days | 44% |
| Thomas Nolwenn | 7/10 | 3083 days | 39% |
| Jilly Crew | 10/10 | 3138 days | 45% |
| Cj Bloomfield | 10/10 | 3261 days | 40% |
| Stephan Kirchenbaur | 8/10 | 3318 days | 33% |
| Eline Meijer | 7/10 | 3395 days | 29% |
| Ruth P | 10/10 | 3413 days | 34% |
| villemain pascale | 10/10 | 3444 days | 33% |
| Shelley Adderley | 10/10 | 3474 days | 32% |
| Niko Stange | 10/10 | 3657 days | 25% |
| Abi Fielder | 10/10 | 3716 days | 23% |
| MARYSE DUMAS | 9/10 | 3747 days | 21% |
| Karen Hale | 8/10 | 3747 days | 21% |
| Erik Hafuer | 10/10 | 3757 days | 19% |
| Bram and Laura | 9/10 | 3779 days | 18% |
| Polly Rider | 9/10 | 3783 days | 18% |
| Kyle S | 10/10 | 3839 days | 18% |
| Simon Mehlmann | 10/10 | 4031 days | 9% |
| Astrid | 10/10 | 4054 days | 9% |
| Miriam Grund | 8/10 | 4058 days | 8% |
| Brian | 9/10 | 4174 days | 5% |
| Martin & Carol | 10/10 | 4205 days | 4% |
| Christine & Andrew | 9/10 | 4296 days | 0% |
| Bonnie and David Appleby | 10/10 | 4419 days | 17% |
| Rob Walker | 10/10 | 4419 days | 17% |
| Brigitte | 9/10 | 4497 days | 15% |
| Andreas Garbin | 10/10 | 4497 days | 15% |
| cmhamlin | 10/10 | 4509 days | 17% |
| Fam von Hattem | 9/10 | 4521 days | 15% |
| Bodil Andersen | 10/10 | 4524 days | 15% |
| phudgb | 10/10 | 4570 days | 17% |
| Lukea | 10/10 | 4753 days | 17% |
| Huw Davies | 9/10 | 4759 days | 15% |
| Lisa Carey | 9/10 | 4770 days | 15% |
| Michael Touzer | 9/10 | 4779 days | 15% |
| Lucy Wilde | 9/10 | 4787 days | 15% |
| Miina Hyuonen | 8/10 | 4795 days | 14% |
| Dieter Mangold | 10/10 | 4796 days | 15% |
| Preben vil Helmsen | 10/10 | 4796 days | 15% |
| Rachel | 7/10 | 4798 days | 13% |
| Christian Apfel | 9/10 | 4801 days | 15% |
| Elizabeth Gardner | 9/10 | 4805 days | 15% |
| Fleur & Nils | 9/10 | 4806 days | 15% |
| kiwiconvert | 10/10 | 4813 days | 17% |
| ivanovskyv | 10/10 | 4844 days | 17% |
| Willem & Lilian | 9/10 | 4884 days | 15% |
| Lardy | 8/10 | 4892 days | 14% |
| piseagalba | 10/10 | 4905 days | 17% |
| katel86 | 10/10 | 4965 days | 17% |
| shelleyp | 10/10 | 5088 days | 17% |
| bdel1963 | 10/10 | 5088 days | 17% |
| Geoff Shutt | 9/10 | 5088 days | 16% |
| Ralph & Marloes Meyers | 8/10 | 5118 days | 14% |
| Helen Evans | 7/10 | 5133 days | 13% |
| Binder | 6/10 | 5134 days | 12% |
| Monica | 8/10 | 5146 days | 14% |
| Vincent | 9/10 | 5154 days | 15% |
| Kurmann/Kayser | 9/10 | 5156 days | 15% |
| Pascal | 9/10 | 5168 days | 15% |
| Kris | 10/10 | 5168 days | 15% |
| Sprangers | 9/10 | 5171 days | 15% |
| ianbateup | 10/10 | 5178 days | 17% |
| Lance | 10/10 | 5270 days | 17% |
| Papu | 10/10 | 5270 days | 17% |
| marisraneth | 8/10 | 5484 days | 14% |
| john england | 10/10 | 5515 days | 17% |
| Mary Selfa | 10/10 | 5539 days | 15% |
| snodge | 9/10 | 5543 days | 16% |
| PaulR | 10/10 | 5574 days | 17% |
| Thomas Rust | 10/10 | 5609 days | 15% |
| SBlake | 10/10 | 5854 days | 15% |
| KathM | 8/10 | 5865 days | 14% |
| ToyalFrance | 10/10 | 5869 days | 15% |
| Donna | 10/10 | 5874 days | 15% |
| PeterG | 9/10 | 5882 days | 15% |
| NicoleG | 8/10 | 5882 days | 14% |
| ReneeA | 9/10 | 5897 days | 15% |
| Ans | 8/10 | 5922 days | 14% |
| Marga V | 10/10 | 5961 days | 17% |
| mehunt | 9/10 | 5961 days | 16% |
| lming60 | 6/10 | 5974 days | 14% |
| Bryony Wilson | 9/10 | 6229 days | 15% |
| Buys | 7/10 | 6254 days | 13% |
| Carole Roccia | 10/10 | 6290 days | 15% |
| Valeria Barouch | 10/10 | 6331 days | 15% |
| Katherine | 10/10 | 6605 days | 15% |
| Nissa | 10/10 | 6614 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
-3.64% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 61 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 | -3.59% |
| 198 | -3.61% |
| 199 | -3.63% |
| 200 | -3.64% |
| 201 | -3.66% |
| 202 | -3.68% |
| 203 | -3.70% |
| … | … |
Balancing Adjustment
0.65% 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.