Hi, 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
96.63%
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 | 1571 days | 100% |
| Kylee Langdon | 9/10 | 1571 days | 99% |
| Nikki Bristol | 10/10 | 1602 days | 90% |
| shelagh gastrell | 10/10 | 1602 days | 90% |
| Clive Williams | 10/10 | 1663 days | 75% |
| Robin Mooring | 10/10 | 1663 days | 75% |
| Paddy O\\\'Connor | 9/10 | 1663 days | 74% |
| Liz Wade | 10/10 | 1692 days | 69% |
| Trevor | 10/10 | 1692 days | 69% |
| Linda | 10/10 | 1723 days | 64% |
| Pukerooster | 10/10 | 1723 days | 64% |
| T Alan Hatton | 10/10 | 1754 days | 61% |
| Emile | 10/10 | 1784 days | 59% |
| GODARD Tuatini | 10/10 | 1815 days | 58% |
| Ella | 10/10 | 1815 days | 58% |
| Sarah & Paul | 10/10 | 1815 days | 58% |
| Mary | 10/10 | 1876 days | 56% |
| Ricardo Nigro | 10/10 | 1968 days | 54% |
| beryl maehe rogers | 10/10 | 1998 days | 54% |
| Carlos Madrid | 9/10 | 1998 days | 53% |
| maryann de la haye | 10/10 | 1998 days | 54% |
| Kris | 10/10 | 2029 days | 53% |
| Jean-Martial MARENNE | 10/10 | 2029 days | 53% |
| Eleri | 10/10 | 2029 days | 53% |
| Richard Taylor | 10/10 | 2057 days | 52% |
| Jenny Hume | 10/10 | 2088 days | 52% |
| Ollie Bigelow | 10/10 | 2149 days | 50% |
| Kristine | 10/10 | 2149 days | 50% |
| Bill Lyon | 10/10 | 2149 days | 50% |
| Rob & Jan | 10/10 | 2149 days | 50% |
| geex25@gmail.com | 8/10 | 2149 days | 49% |
| Alex | 10/10 | 2180 days | 49% |
| Tara Holmes | 10/10 | 2180 days | 49% |
| Marg | 10/10 | 2180 days | 49% |
| Annette and Jan | 10/10 | 2180 days | 49% |
| Vanesa De la haza | 10/10 | 2210 days | 49% |
| Judy | 10/10 | 2210 days | 49% |
| Emanda | 10/10 | 2210 days | 49% |
| Mary | 10/10 | 2210 days | 49% |
| Paul from Australia | 10/10 | 2333 days | 46% |
| Brad, California | 10/10 | 2394 days | 45% |
| Sarah Killury | 10/10 | 2422 days | 44% |
| Kristin Svensson | 10/10 | 2453 days | 43% |
| Javier Mimbrera | 10/10 | 2575 days | 41% |
| Dave Rollison | 9/10 | 2759 days | 36% |
| Judit Van lanen | 9/10 | 2836 days | 31% |
| Thomas Nolwenn | 7/10 | 2884 days | 28% |
| Jilly Crew | 10/10 | 2940 days | 32% |
| Cj Bloomfield | 10/10 | 3063 days | 30% |
| Stephan Kirchenbaur | 8/10 | 3119 days | 25% |
| Eline Meijer | 7/10 | 3196 days | 22% |
| Ruth P | 10/10 | 3215 days | 26% |
| villemain pascale | 10/10 | 3245 days | 25% |
| Shelley Adderley | 10/10 | 3276 days | 25% |
| Niko Stange | 10/10 | 3459 days | 21% |
| Abi Fielder | 10/10 | 3518 days | 19% |
| MARYSE DUMAS | 9/10 | 3549 days | 18% |
| Karen Hale | 8/10 | 3549 days | 18% |
| Erik Hafuer | 10/10 | 3558 days | 17% |
| Bram and Laura | 9/10 | 3580 days | 16% |
| Polly Rider | 9/10 | 3584 days | 16% |
| Kyle S | 10/10 | 3641 days | 16% |
| Simon Mehlmann | 10/10 | 3832 days | 11% |
| Astrid | 10/10 | 3855 days | 12% |
| Miriam Grund | 8/10 | 3859 days | 10% |
| Brian | 9/10 | 3975 days | 9% |
| Martin & Carol | 10/10 | 4006 days | 8% |
| Christine & Andrew | 9/10 | 4098 days | 6% |
| Bonnie and David Appleby | 10/10 | 4220 days | 3% |
| Rob Walker | 10/10 | 4220 days | 3% |
| Brigitte | 9/10 | 4298 days | 1% |
| Andreas Garbin | 10/10 | 4298 days | 1% |
| cmhamlin | 10/10 | 4310 days | 1% |
| Fam von Hattem | 9/10 | 4322 days | 1% |
| Bodil Andersen | 10/10 | 4325 days | 1% |
| phudgb | 10/10 | 4371 days | 0% |
| Lukea | 10/10 | 4554 days | 11% |
| Huw Davies | 9/10 | 4560 days | 10% |
| Lisa Carey | 9/10 | 4571 days | 10% |
| Michael Touzer | 9/10 | 4580 days | 10% |
| Lucy Wilde | 9/10 | 4588 days | 10% |
| Miina Hyuonen | 8/10 | 4596 days | 10% |
| Dieter Mangold | 10/10 | 4597 days | 10% |
| Preben vil Helmsen | 10/10 | 4597 days | 10% |
| Rachel | 7/10 | 4599 days | 9% |
| Christian Apfel | 9/10 | 4602 days | 10% |
| Elizabeth Gardner | 9/10 | 4606 days | 10% |
| Fleur & Nils | 9/10 | 4607 days | 10% |
| kiwiconvert | 10/10 | 4614 days | 11% |
| ivanovskyv | 10/10 | 4645 days | 11% |
| Willem & Lilian | 9/10 | 4685 days | 10% |
| Lardy | 8/10 | 4693 days | 10% |
| piseagalba | 10/10 | 4706 days | 11% |
| katel86 | 10/10 | 4767 days | 11% |
| shelleyp | 10/10 | 4890 days | 11% |
| bdel1963 | 10/10 | 4890 days | 11% |
| Geoff Shutt | 9/10 | 4890 days | 11% |
| Ralph & Marloes Meyers | 8/10 | 4919 days | 10% |
| Helen Evans | 7/10 | 4934 days | 9% |
| Binder | 6/10 | 4935 days | 9% |
| Monica | 8/10 | 4947 days | 10% |
| Vincent | 9/10 | 4955 days | 10% |
| Kurmann/Kayser | 9/10 | 4957 days | 10% |
| Pascal | 9/10 | 4969 days | 10% |
| Kris | 10/10 | 4969 days | 10% |
| Sprangers | 9/10 | 4972 days | 10% |
| ianbateup | 10/10 | 4979 days | 11% |
| Lance | 10/10 | 5071 days | 11% |
| Papu | 10/10 | 5071 days | 11% |
| marisraneth | 8/10 | 5285 days | 10% |
| john england | 10/10 | 5316 days | 11% |
| Mary Selfa | 10/10 | 5340 days | 10% |
| snodge | 9/10 | 5344 days | 11% |
| PaulR | 10/10 | 5375 days | 11% |
| Thomas Rust | 10/10 | 5410 days | 10% |
| SBlake | 10/10 | 5655 days | 10% |
| KathM | 8/10 | 5667 days | 10% |
| ToyalFrance | 10/10 | 5670 days | 10% |
| Donna | 10/10 | 5676 days | 10% |
| PeterG | 9/10 | 5683 days | 10% |
| NicoleG | 8/10 | 5683 days | 10% |
| ReneeA | 9/10 | 5698 days | 10% |
| Ans | 8/10 | 5724 days | 10% |
| Marga V | 10/10 | 5762 days | 11% |
| mehunt | 9/10 | 5763 days | 11% |
| lming60 | 6/10 | 5776 days | 10% |
| Bryony Wilson | 9/10 | 6030 days | 10% |
| Buys | 7/10 | 6055 days | 9% |
| Carole Roccia | 10/10 | 6091 days | 10% |
| Valeria Barouch | 10/10 | 6132 days | 10% |
| Katherine | 10/10 | 6406 days | 10% |
| Nissa | 10/10 | 6415 days | 10% |
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
-3.03% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 75 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 | -2.98% |
| 198 | -3.00% |
| 199 | -3.01% |
| 200 | -3.03% |
| 201 | -3.04% |
| 202 | -3.06% |
| 203 | -3.07% |
| … | … |
Balancing Adjustment
0.57% 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.