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
96.53%
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 | 2027 days | 100% |
| Kylee Langdon | 9/10 | 2027 days | 99% |
| Nikki Bristol | 10/10 | 2058 days | 99% |
| shelagh gastrell | 10/10 | 2058 days | 99% |
| Clive Williams | 10/10 | 2119 days | 96% |
| Robin Mooring | 10/10 | 2119 days | 96% |
| Paddy O\\\'Connor | 9/10 | 2119 days | 95% |
| Liz Wade | 10/10 | 2147 days | 95% |
| Trevor | 10/10 | 2148 days | 95% |
| Linda | 10/10 | 2179 days | 93% |
| Pukerooster | 10/10 | 2179 days | 93% |
| T Alan Hatton | 10/10 | 2210 days | 92% |
| Emile | 10/10 | 2240 days | 91% |
| GODARD Tuatini | 10/10 | 2271 days | 89% |
| Ella | 10/10 | 2271 days | 89% |
| Sarah & Paul | 10/10 | 2271 days | 89% |
| Mary | 10/10 | 2332 days | 87% |
| Ricardo Nigro | 10/10 | 2424 days | 83% |
| beryl maehe rogers | 10/10 | 2454 days | 81% |
| Carlos Madrid | 9/10 | 2454 days | 81% |
| maryann de la haye | 10/10 | 2454 days | 81% |
| Kris | 10/10 | 2485 days | 80% |
| Jean-Martial MARENNE | 10/10 | 2485 days | 80% |
| Eleri | 10/10 | 2485 days | 80% |
| Richard Taylor | 10/10 | 2513 days | 79% |
| Jenny Hume | 10/10 | 2544 days | 77% |
| Ollie Bigelow | 10/10 | 2605 days | 75% |
| Kristine | 10/10 | 2605 days | 75% |
| Bill Lyon | 10/10 | 2605 days | 75% |
| Rob & Jan | 10/10 | 2605 days | 75% |
| geex25@gmail.com | 8/10 | 2605 days | 73% |
| Alex | 10/10 | 2636 days | 73% |
| Tara Holmes | 10/10 | 2636 days | 73% |
| Marg | 10/10 | 2636 days | 73% |
| Annette and Jan | 10/10 | 2636 days | 73% |
| Vanesa De la haza | 10/10 | 2666 days | 72% |
| Judy | 10/10 | 2666 days | 72% |
| Emanda | 10/10 | 2666 days | 72% |
| Mary | 10/10 | 2666 days | 72% |
| Paul from Australia | 10/10 | 2789 days | 67% |
| Brad, California | 10/10 | 2850 days | 64% |
| Sarah Killury | 10/10 | 2877 days | 63% |
| Kristin Svensson | 10/10 | 2908 days | 62% |
| Javier Mimbrera | 10/10 | 3030 days | 56% |
| Dave Rollison | 9/10 | 3214 days | 48% |
| Judit Van lanen | 9/10 | 3292 days | 40% |
| Thomas Nolwenn | 7/10 | 3340 days | 35% |
| Jilly Crew | 10/10 | 3395 days | 40% |
| Cj Bloomfield | 10/10 | 3518 days | 35% |
| Stephan Kirchenbaur | 8/10 | 3575 days | 28% |
| Eline Meijer | 7/10 | 3652 days | 24% |
| Ruth P | 10/10 | 3670 days | 28% |
| villemain pascale | 10/10 | 3701 days | 27% |
| Shelley Adderley | 10/10 | 3731 days | 26% |
| Niko Stange | 10/10 | 3914 days | 18% |
| Abi Fielder | 10/10 | 3973 days | 15% |
| MARYSE DUMAS | 9/10 | 4004 days | 13% |
| Karen Hale | 8/10 | 4004 days | 13% |
| Erik Hafuer | 10/10 | 4014 days | 12% |
| Bram and Laura | 9/10 | 4036 days | 11% |
| Polly Rider | 9/10 | 4040 days | 10% |
| Kyle S | 10/10 | 4096 days | 10% |
| Simon Mehlmann | 10/10 | 4288 days | 1% |
| Astrid | 10/10 | 4311 days | 0% |
| Miriam Grund | 8/10 | 4315 days | 0% |
| Brian | 9/10 | 4431 days | 19% |
| Martin & Carol | 10/10 | 4462 days | 20% |
| Christine & Andrew | 9/10 | 4554 days | 19% |
| Bonnie and David Appleby | 10/10 | 4676 days | 20% |
| Rob Walker | 10/10 | 4676 days | 20% |
| Brigitte | 9/10 | 4754 days | 17% |
| Andreas Garbin | 10/10 | 4754 days | 17% |
| cmhamlin | 10/10 | 4766 days | 20% |
| Fam von Hattem | 9/10 | 4778 days | 17% |
| Bodil Andersen | 10/10 | 4781 days | 17% |
| phudgb | 10/10 | 4827 days | 20% |
| Lukea | 10/10 | 5010 days | 20% |
| Huw Davies | 9/10 | 5016 days | 17% |
| Lisa Carey | 9/10 | 5027 days | 17% |
| Michael Touzer | 9/10 | 5036 days | 17% |
| Lucy Wilde | 9/10 | 5044 days | 17% |
| Miina Hyuonen | 8/10 | 5052 days | 17% |
| Dieter Mangold | 10/10 | 5053 days | 17% |
| Preben vil Helmsen | 10/10 | 5053 days | 17% |
| Rachel | 7/10 | 5055 days | 16% |
| Christian Apfel | 9/10 | 5058 days | 17% |
| Elizabeth Gardner | 9/10 | 5062 days | 17% |
| Fleur & Nils | 9/10 | 5063 days | 17% |
| kiwiconvert | 10/10 | 5070 days | 20% |
| ivanovskyv | 10/10 | 5101 days | 20% |
| Willem & Lilian | 9/10 | 5141 days | 17% |
| Lardy | 8/10 | 5149 days | 17% |
| piseagalba | 10/10 | 5162 days | 20% |
| katel86 | 10/10 | 5223 days | 20% |
| shelleyp | 10/10 | 5346 days | 20% |
| bdel1963 | 10/10 | 5346 days | 20% |
| Geoff Shutt | 9/10 | 5346 days | 19% |
| Ralph & Marloes Meyers | 8/10 | 5375 days | 17% |
| Helen Evans | 7/10 | 5390 days | 16% |
| Binder | 6/10 | 5391 days | 14% |
| Monica | 8/10 | 5403 days | 17% |
| Vincent | 9/10 | 5411 days | 17% |
| Kurmann/Kayser | 9/10 | 5413 days | 17% |
| Pascal | 9/10 | 5425 days | 17% |
| Kris | 10/10 | 5425 days | 17% |
| Sprangers | 9/10 | 5428 days | 17% |
| ianbateup | 10/10 | 5435 days | 20% |
| Lance | 10/10 | 5527 days | 20% |
| Papu | 10/10 | 5527 days | 20% |
| marisraneth | 8/10 | 5741 days | 17% |
| john england | 10/10 | 5772 days | 20% |
| Mary Selfa | 10/10 | 5796 days | 17% |
| snodge | 9/10 | 5800 days | 19% |
| PaulR | 10/10 | 5831 days | 20% |
| Thomas Rust | 10/10 | 5866 days | 17% |
| SBlake | 10/10 | 6111 days | 17% |
| KathM | 8/10 | 6122 days | 17% |
| ToyalFrance | 10/10 | 6126 days | 17% |
| Donna | 10/10 | 6131 days | 17% |
| PeterG | 9/10 | 6139 days | 17% |
| NicoleG | 8/10 | 6139 days | 17% |
| ReneeA | 9/10 | 6154 days | 17% |
| Ans | 8/10 | 6179 days | 17% |
| Marga V | 10/10 | 6218 days | 20% |
| mehunt | 9/10 | 6219 days | 19% |
| lming60 | 6/10 | 6231 days | 16% |
| Bryony Wilson | 9/10 | 6486 days | 17% |
| Buys | 7/10 | 6511 days | 16% |
| Carole Roccia | 10/10 | 6547 days | 17% |
| Valeria Barouch | 10/10 | 6588 days | 17% |
| Katherine | 10/10 | 6862 days | 17% |
| Nissa | 10/10 | 6871 days | 17% |
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 42 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 | -3.98% |
| 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.