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 | 1740 days | 100% |
| Kylee Langdon | 9/10 | 1740 days | 99% |
| Nikki Bristol | 10/10 | 1771 days | 95% |
| shelagh gastrell | 10/10 | 1771 days | 95% |
| Clive Williams | 10/10 | 1832 days | 92% |
| Robin Mooring | 10/10 | 1832 days | 92% |
| Paddy O\\\'Connor | 9/10 | 1832 days | 91% |
| Liz Wade | 10/10 | 1861 days | 91% |
| Trevor | 10/10 | 1861 days | 91% |
| Linda | 10/10 | 1892 days | 90% |
| Pukerooster | 10/10 | 1892 days | 90% |
| T Alan Hatton | 10/10 | 1923 days | 88% |
| Emile | 10/10 | 1953 days | 87% |
| GODARD Tuatini | 10/10 | 1984 days | 86% |
| Ella | 10/10 | 1984 days | 86% |
| Sarah & Paul | 10/10 | 1984 days | 86% |
| Mary | 10/10 | 2045 days | 84% |
| Ricardo Nigro | 10/10 | 2137 days | 80% |
| beryl maehe rogers | 10/10 | 2167 days | 79% |
| Carlos Madrid | 9/10 | 2167 days | 78% |
| maryann de la haye | 10/10 | 2167 days | 79% |
| Kris | 10/10 | 2198 days | 78% |
| Jean-Martial MARENNE | 10/10 | 2198 days | 78% |
| Eleri | 10/10 | 2198 days | 78% |
| Richard Taylor | 10/10 | 2226 days | 77% |
| Jenny Hume | 10/10 | 2257 days | 76% |
| Ollie Bigelow | 10/10 | 2318 days | 73% |
| Kristine | 10/10 | 2318 days | 73% |
| Bill Lyon | 10/10 | 2318 days | 73% |
| Rob & Jan | 10/10 | 2318 days | 73% |
| geex25@gmail.com | 8/10 | 2318 days | 72% |
| Alex | 10/10 | 2349 days | 72% |
| Tara Holmes | 10/10 | 2349 days | 72% |
| Marg | 10/10 | 2349 days | 72% |
| Annette and Jan | 10/10 | 2349 days | 72% |
| Vanesa De la haza | 10/10 | 2379 days | 71% |
| Judy | 10/10 | 2379 days | 71% |
| Emanda | 10/10 | 2379 days | 71% |
| Mary | 10/10 | 2379 days | 71% |
| Paul from Australia | 10/10 | 2502 days | 67% |
| Brad, California | 10/10 | 2563 days | 64% |
| Sarah Killury | 10/10 | 2591 days | 63% |
| Kristin Svensson | 10/10 | 2622 days | 62% |
| Javier Mimbrera | 10/10 | 2744 days | 57% |
| Dave Rollison | 9/10 | 2928 days | 50% |
| Judit Van lanen | 9/10 | 3005 days | 42% |
| Thomas Nolwenn | 7/10 | 3053 days | 37% |
| Jilly Crew | 10/10 | 3109 days | 44% |
| Cj Bloomfield | 10/10 | 3232 days | 39% |
| Stephan Kirchenbaur | 8/10 | 3288 days | 32% |
| Eline Meijer | 7/10 | 3365 days | 28% |
| Ruth P | 10/10 | 3384 days | 33% |
| villemain pascale | 10/10 | 3414 days | 32% |
| Shelley Adderley | 10/10 | 3445 days | 31% |
| Niko Stange | 10/10 | 3628 days | 24% |
| Abi Fielder | 10/10 | 3687 days | 22% |
| MARYSE DUMAS | 9/10 | 3718 days | 20% |
| Karen Hale | 8/10 | 3718 days | 20% |
| Erik Hafuer | 10/10 | 3727 days | 18% |
| Bram and Laura | 9/10 | 3749 days | 17% |
| Polly Rider | 9/10 | 3753 days | 17% |
| Kyle S | 10/10 | 3810 days | 17% |
| Simon Mehlmann | 10/10 | 4001 days | 9% |
| Astrid | 10/10 | 4024 days | 9% |
| Miriam Grund | 8/10 | 4028 days | 7% |
| Brian | 9/10 | 4144 days | 5% |
| Martin & Carol | 10/10 | 4175 days | 4% |
| Christine & Andrew | 9/10 | 4267 days | 0% |
| Bonnie and David Appleby | 10/10 | 4389 days | 15% |
| Rob Walker | 10/10 | 4389 days | 15% |
| Brigitte | 9/10 | 4467 days | 13% |
| Andreas Garbin | 10/10 | 4467 days | 13% |
| cmhamlin | 10/10 | 4479 days | 15% |
| Fam von Hattem | 9/10 | 4491 days | 13% |
| Bodil Andersen | 10/10 | 4494 days | 13% |
| phudgb | 10/10 | 4540 days | 15% |
| Lukea | 10/10 | 4723 days | 15% |
| Huw Davies | 9/10 | 4729 days | 13% |
| Lisa Carey | 9/10 | 4740 days | 13% |
| Michael Touzer | 9/10 | 4749 days | 13% |
| Lucy Wilde | 9/10 | 4757 days | 13% |
| Miina Hyuonen | 8/10 | 4765 days | 13% |
| Dieter Mangold | 10/10 | 4766 days | 13% |
| Preben vil Helmsen | 10/10 | 4766 days | 13% |
| Rachel | 7/10 | 4768 days | 12% |
| Christian Apfel | 9/10 | 4771 days | 13% |
| Elizabeth Gardner | 9/10 | 4775 days | 13% |
| Fleur & Nils | 9/10 | 4776 days | 13% |
| kiwiconvert | 10/10 | 4783 days | 15% |
| ivanovskyv | 10/10 | 4814 days | 15% |
| Willem & Lilian | 9/10 | 4854 days | 13% |
| Lardy | 8/10 | 4862 days | 13% |
| piseagalba | 10/10 | 4875 days | 15% |
| katel86 | 10/10 | 4936 days | 15% |
| shelleyp | 10/10 | 5059 days | 15% |
| bdel1963 | 10/10 | 5059 days | 15% |
| Geoff Shutt | 9/10 | 5059 days | 15% |
| Ralph & Marloes Meyers | 8/10 | 5088 days | 13% |
| Helen Evans | 7/10 | 5103 days | 12% |
| Binder | 6/10 | 5104 days | 10% |
| Monica | 8/10 | 5116 days | 13% |
| Vincent | 9/10 | 5124 days | 13% |
| Kurmann/Kayser | 9/10 | 5126 days | 13% |
| Pascal | 9/10 | 5138 days | 13% |
| Kris | 10/10 | 5138 days | 13% |
| Sprangers | 9/10 | 5141 days | 13% |
| ianbateup | 10/10 | 5148 days | 15% |
| Lance | 10/10 | 5240 days | 15% |
| Papu | 10/10 | 5240 days | 15% |
| marisraneth | 8/10 | 5454 days | 13% |
| john england | 10/10 | 5485 days | 15% |
| Mary Selfa | 10/10 | 5509 days | 13% |
| snodge | 9/10 | 5513 days | 15% |
| PaulR | 10/10 | 5544 days | 15% |
| Thomas Rust | 10/10 | 5579 days | 13% |
| SBlake | 10/10 | 5824 days | 13% |
| KathM | 8/10 | 5835 days | 13% |
| ToyalFrance | 10/10 | 5839 days | 13% |
| Donna | 10/10 | 5844 days | 13% |
| PeterG | 9/10 | 5852 days | 13% |
| NicoleG | 8/10 | 5852 days | 13% |
| ReneeA | 9/10 | 5867 days | 13% |
| Ans | 8/10 | 5892 days | 13% |
| Marga V | 10/10 | 5931 days | 15% |
| mehunt | 9/10 | 5932 days | 15% |
| lming60 | 6/10 | 5945 days | 12% |
| Bryony Wilson | 9/10 | 6199 days | 13% |
| Buys | 7/10 | 6224 days | 12% |
| Carole Roccia | 10/10 | 6260 days | 13% |
| Valeria Barouch | 10/10 | 6301 days | 13% |
| Katherine | 10/10 | 6575 days | 13% |
| Nissa | 10/10 | 6584 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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 56 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
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.