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 Skyline Luge Rotorua.
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.
Skyline Luge Rotorua
Valid Reviews
145 Valid Reviews
The Skyline Luge Rotorua experience has a total of 145 valid reviews. There are no 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 145 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 40 |
|
28% |
| 9/10 | 47 |
|
32% |
| 8/10 | 36 |
|
25% |
| 7/10 | 17 |
|
12% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.69% Average
The raw data average (mean) for all the Skyline Luge Rotorua valid reviews is 86.69% and is based on 145 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
121 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 145 valid reviews, the experience has 121 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 121 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 31 |
|
26% |
| 9/10 | 38 |
|
31% |
| 8/10 | 34 |
|
28% |
| 7/10 | 13 |
|
11% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.12% Average
The raw data average (mean) for all the Skyline Luge Rotorua face-to-face reviews is 86.12% and is based on 121 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.25%
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 |
|---|---|---|---|
| Christian Paaske | 7/10 | 2735 days | 95% |
| Natasha Startup | 9/10 | 2767 days | 100% |
| Andy | 9/10 | 2772 days | 99% |
| Toby | 10/10 | 2778 days | 100% |
| Micha Kuster | 10/10 | 2836 days | 96% |
| Tim | 8/10 | 2852 days | 93% |
| Jendrik | 8/10 | 2852 days | 93% |
| Alice Frater | 7/10 | 2859 days | 88% |
| Jade Williams | 10/10 | 2872 days | 94% |
| Cora | 9/10 | 3113 days | 78% |
| Lauren Dinnage | 10/10 | 3121 days | 78% |
| Mike Munzenmaier | 9/10 | 3128 days | 77% |
| Matt Irwin | 8/10 | 3131 days | 76% |
| Annalies Beard | 8/10 | 3131 days | 76% |
| Laura Schafer | 9/10 | 3139 days | 76% |
| D Davey | 10/10 | 3148 days | 76% |
| Kirsten Gehrenbeck | 6/10 | 3150 days | 65% |
| Lucile Souday | 10/10 | 3159 days | 76% |
| Lisa Kalkert | 10/10 | 3160 days | 76% |
| David | 10/10 | 3160 days | 76% |
| Philip Piel | 9/10 | 3160 days | 75% |
| Miro | 6/10 | 3160 days | 65% |
| Chiara | 9/10 | 3160 days | 75% |
| Sabine Bergen | 9/10 | 3163 days | 75% |
| Annika Locker | 10/10 | 3166 days | 75% |
| Jess | 8/10 | 3197 days | 72% |
| Lilli Erni | 9/10 | 3830 days | 32% |
| Franz Birkefeld | 9/10 | 3831 days | 32% |
| Laina Black | 7/10 | 3851 days | 29% |
| Ricky White | 9/10 | 3851 days | 31% |
| Jennifer Garner | 9/10 | 3865 days | 30% |
| Philip Donachie | 10/10 | 3868 days | 30% |
| Klaus Petersen | 7/10 | 3870 days | 28% |
| Matthew Trezise | 10/10 | 3871 days | 30% |
| Lorraine Doyle | 10/10 | 4203 days | 9% |
| Lisa Blake | 9/10 | 4323 days | 1% |
| Jenben | 10/10 | 4337 days | 0% |
| David | 7/10 | 4337 days | 0% |
| Nikita Sue | 8/10 | 4604 days | 30% |
| Darren Ronchetti | 10/10 | 4607 days | 30% |
| Asha | 9/10 | 4642 days | 30% |
| Helen & Laurence | 9/10 | 4680 days | 30% |
| kirribilliangel | 10/10 | 4764 days | 30% |
| Dave van Bergen | 9/10 | 4912 days | 30% |
| Guult Ryan | 10/10 | 4934 days | 30% |
| Claire Colquhoun | 8/10 | 4935 days | 30% |
| Andy Johnson | 10/10 | 4939 days | 30% |
| Leanne Shepherd | 8/10 | 4940 days | 30% |
| Chris White | 10/10 | 4955 days | 30% |
| Jane & Regis | 7/10 | 4964 days | 28% |
| Invictus | 8/10 | 5129 days | 30% |
| craigy | 7/10 | 5160 days | 28% |
| Rob | 8/10 | 5230 days | 30% |
| David | 7/10 | 5246 days | 28% |
| Alzbeta Czech | 10/10 | 5327 days | 30% |
| Becky | 8/10 | 5334 days | 30% |
| Amer | 9/10 | 5338 days | 30% |
| Greg Gerritz | 8/10 | 5340 days | 30% |
| Chance McGuire | 10/10 | 5341 days | 30% |
| Hailey & Fin | 8/10 | 5353 days | 30% |
| pedawrds | 10/10 | 5392 days | 30% |
| thomash | 10/10 | 5397 days | 30% |
| asiacritics | 7/10 | 5403 days | 28% |
| Bue Verrept | 8/10 | 5410 days | 30% |
| canadianislandgirl | 7/10 | 5433 days | 28% |
| Ash Sturm | 9/10 | 5433 days | 30% |
| wileyman | 9/10 | 5464 days | 30% |
| clairet | 9/10 | 5512 days | 30% |
| ToryL | 9/10 | 5525 days | 30% |
| muriellef | 7/10 | 5529 days | 28% |
| katesh | 10/10 | 5602 days | 30% |
| caroldarren | 10/10 | 5647 days | 30% |
| Jake1 | 9/10 | 5649 days | 30% |
| HanT | 8/10 | 5657 days | 30% |
| Yvanna | 8/10 | 5666 days | 30% |
| EmmaL | 8/10 | 5680 days | 30% |
| AnthonyB1 | 8/10 | 5681 days | 30% |
| kiwibrit86 | 9/10 | 5691 days | 30% |
| Matt | 10/10 | 5697 days | 30% |
| SuenSwitzerland | 9/10 | 5706 days | 30% |
| Carolyn | 9/10 | 5709 days | 30% |
| Marcus | 8/10 | 5709 days | 30% |
| Kirsty | 10/10 | 5711 days | 30% |
| Fam | 9/10 | 5715 days | 30% |
| Hayley | 8/10 | 5721 days | 30% |
| Debbie Mossman | 9/10 | 5722 days | 30% |
| Alan | 8/10 | 5726 days | 30% |
| Claire | 10/10 | 5733 days | 30% |
| Spyfox | 10/10 | 5754 days | 30% |
| Sonja | 9/10 | 5760 days | 30% |
| Tim | 8/10 | 5768 days | 30% |
| Lorri S | 8/10 | 5772 days | 30% |
| lming60 | 10/10 | 5773 days | 30% |
| melissa | 10/10 | 5773 days | 30% |
| Vincent | 9/10 | 5778 days | 30% |
| Hanna | 5/10 | 5793 days | 22% |
| Henry | 8/10 | 5814 days | 30% |
| Laura | 9/10 | 5831 days | 30% |
| Dave | 9/10 | 5837 days | 30% |
| Anna | 8/10 | 5845 days | 30% |
| S D | 9/10 | 5861 days | 30% |
| Alex Paice | 9/10 | 5872 days | 30% |
| Nikki Gray | 9/10 | 5897 days | 30% |
| Kellie Teichmann | 10/10 | 5948 days | 30% |
| L1z4rd | 9/10 | 5967 days | 30% |
| Allie61 | 10/10 | 6012 days | 30% |
| Adam Richards | 9/10 | 6027 days | 30% |
| Nick | 9/10 | 6033 days | 30% |
| Andria Davis | 9/10 | 6040 days | 30% |
| Georgina Mulligan | 9/10 | 6040 days | 30% |
| catzmagic | 9/10 | 6041 days | 30% |
| Emily Houston | 7/10 | 6044 days | 28% |
| Nancy Dol | 8/10 | 6044 days | 30% |
| John Woodrow | 9/10 | 6048 days | 30% |
| Zara | 10/10 | 6056 days | 30% |
| Ed | 6/10 | 6056 days | 26% |
| Elle | 10/10 | 6056 days | 30% |
| Issy | 7/10 | 6056 days | 28% |
| Katharina | 10/10 | 6059 days | 30% |
| Juliet | 9/10 | 6060 days | 30% |
| paulonline | 10/10 | 6062 days | 30% |
| Marc Hertogs | 7/10 | 6063 days | 28% |
| Ash McNeil | 10/10 | 6063 days | 30% |
| Warren | 8/10 | 6087 days | 30% |
| Klaus | 9/10 | 6095 days | 30% |
| Ann Westmacott | 9/10 | 6121 days | 30% |
| Neil Cooke | 8/10 | 6129 days | 30% |
| Archie Murdoch | 8/10 | 6136 days | 30% |
| Orla | 8/10 | 6137 days | 30% |
| Andy Chapman | 8/10 | 6249 days | 30% |
| JanKovar | 7/10 | 6365 days | 28% |
| Magnus | 8/10 | 6377 days | 30% |
| Lorraine | 8/10 | 6383 days | 30% |
| Dan | 9/10 | 6388 days | 30% |
| Sarah | 8/10 | 6388 days | 30% |
| Richhouse | 8/10 | 6393 days | 30% |
| Emma Gareth | 9/10 | 6399 days | 30% |
| Karen Nellist | 10/10 | 6402 days | 30% |
| beesom | 9/10 | 6413 days | 30% |
| Janne | 7/10 | 6417 days | 28% |
| Frauke | 4/10 | 6419 days | 19% |
| Dave | 10/10 | 6424 days | 30% |
| RosalindBoyes | 7/10 | 6424 days | 28% |
| Hanna | 8/10 | 6425 days | 30% |
| LisaAllen | 10/10 | 6438 days | 30% |
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 Skyline Luge Rotorua experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.96% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 77 days. However the Skyline Luge Rotorua 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 Skyline Luge Rotorua experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.92% |
| 198 | -2.93% |
| 199 | -2.95% |
| 200 | -2.96% |
| 201 | -2.98% |
| 202 | -2.99% |
| 203 | -3.01% |
| … | … |
Balancing Adjustment
1.97% 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
86%
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.