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 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 146 reviews. There are 145 valid reviews that are included when calculating the ranking score and 1 invalid review 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
87.17%
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 | 2910 days | 96% |
| Natasha Startup | 9/10 | 2942 days | 100% |
| Andy | 9/10 | 2947 days | 99% |
| Toby | 10/10 | 2953 days | 100% |
| Micha Kuster | 10/10 | 3011 days | 96% |
| Tim | 8/10 | 3027 days | 93% |
| Jendrik | 8/10 | 3027 days | 93% |
| Alice Frater | 7/10 | 3034 days | 88% |
| Jade Williams | 10/10 | 3047 days | 93% |
| Cora | 9/10 | 3288 days | 76% |
| Lauren Dinnage | 10/10 | 3296 days | 76% |
| Mike Munzenmaier | 9/10 | 3303 days | 75% |
| Matt Irwin | 8/10 | 3306 days | 74% |
| Annalies Beard | 8/10 | 3306 days | 74% |
| Laura Schafer | 9/10 | 3314 days | 74% |
| D Davey | 10/10 | 3323 days | 74% |
| Kirsten Gehrenbeck | 6/10 | 3325 days | 64% |
| Lucile Souday | 10/10 | 3334 days | 73% |
| Lisa Kalkert | 10/10 | 3335 days | 73% |
| David | 10/10 | 3335 days | 73% |
| Philip Piel | 9/10 | 3335 days | 72% |
| Miro | 6/10 | 3335 days | 63% |
| Chiara | 9/10 | 3335 days | 72% |
| Sabine Bergen | 9/10 | 3338 days | 72% |
| Annika Locker | 10/10 | 3341 days | 73% |
| Jess | 8/10 | 3372 days | 69% |
| Lilli Erni | 9/10 | 4005 days | 26% |
| Franz Birkefeld | 9/10 | 4006 days | 26% |
| Laina Black | 7/10 | 4026 days | 23% |
| Ricky White | 9/10 | 4026 days | 24% |
| Jennifer Garner | 9/10 | 4040 days | 23% |
| Philip Donachie | 10/10 | 4043 days | 24% |
| Klaus Petersen | 7/10 | 4045 days | 22% |
| Matthew Trezise | 10/10 | 4046 days | 23% |
| Lorraine Doyle | 10/10 | 4378 days | 0% |
| Lisa Blake | 9/10 | 4498 days | 35% |
| Jenben | 10/10 | 4512 days | 36% |
| David | 7/10 | 4512 days | 33% |
| Nikita Sue | 8/10 | 4779 days | 35% |
| Darren Ronchetti | 10/10 | 4782 days | 36% |
| Asha | 9/10 | 4817 days | 35% |
| Helen & Laurence | 9/10 | 4855 days | 35% |
| kirribilliangel | 10/10 | 4939 days | 36% |
| Dave van Bergen | 9/10 | 5087 days | 35% |
| Guult Ryan | 10/10 | 5109 days | 36% |
| Claire Colquhoun | 8/10 | 5110 days | 35% |
| Andy Johnson | 10/10 | 5114 days | 36% |
| Leanne Shepherd | 8/10 | 5115 days | 35% |
| Chris White | 10/10 | 5130 days | 36% |
| Jane & Regis | 7/10 | 5139 days | 33% |
| Invictus | 8/10 | 5304 days | 35% |
| craigy | 7/10 | 5335 days | 33% |
| Rob | 8/10 | 5405 days | 35% |
| David | 7/10 | 5421 days | 33% |
| Alzbeta Czech | 10/10 | 5502 days | 36% |
| Becky | 8/10 | 5509 days | 35% |
| Amer | 9/10 | 5513 days | 35% |
| Greg Gerritz | 8/10 | 5515 days | 35% |
| Chance McGuire | 10/10 | 5516 days | 36% |
| Hailey & Fin | 8/10 | 5528 days | 35% |
| pedawrds | 10/10 | 5567 days | 36% |
| thomash | 10/10 | 5572 days | 36% |
| asiacritics | 7/10 | 5578 days | 33% |
| Bue Verrept | 8/10 | 5585 days | 35% |
| canadianislandgirl | 7/10 | 5608 days | 33% |
| Ash Sturm | 9/10 | 5608 days | 35% |
| wileyman | 9/10 | 5639 days | 35% |
| clairet | 9/10 | 5687 days | 35% |
| ToryL | 9/10 | 5700 days | 35% |
| muriellef | 7/10 | 5704 days | 33% |
| katesh | 10/10 | 5777 days | 36% |
| caroldarren | 10/10 | 5822 days | 36% |
| Jake1 | 9/10 | 5824 days | 35% |
| HanT | 8/10 | 5831 days | 35% |
| Yvanna | 8/10 | 5841 days | 35% |
| EmmaL | 8/10 | 5855 days | 35% |
| AnthonyB1 | 8/10 | 5856 days | 35% |
| kiwibrit86 | 9/10 | 5865 days | 35% |
| Matt | 10/10 | 5871 days | 36% |
| SuenSwitzerland | 9/10 | 5881 days | 35% |
| Carolyn | 9/10 | 5884 days | 35% |
| Marcus | 8/10 | 5884 days | 35% |
| Kirsty | 10/10 | 5885 days | 36% |
| Fam | 9/10 | 5890 days | 35% |
| Hayley | 8/10 | 5896 days | 35% |
| Debbie Mossman | 9/10 | 5897 days | 35% |
| Alan | 8/10 | 5900 days | 35% |
| Claire | 10/10 | 5907 days | 36% |
| Spyfox | 10/10 | 5928 days | 36% |
| Sonja | 9/10 | 5935 days | 35% |
| Tim | 8/10 | 5942 days | 35% |
| Lorri S | 8/10 | 5946 days | 35% |
| lming60 | 10/10 | 5947 days | 36% |
| melissa | 10/10 | 5947 days | 36% |
| Vincent | 9/10 | 5952 days | 35% |
| Hanna | 5/10 | 5967 days | 27% |
| Henry | 8/10 | 5989 days | 35% |
| Laura | 9/10 | 6005 days | 35% |
| Dave | 9/10 | 6012 days | 35% |
| Anna | 8/10 | 6019 days | 35% |
| S D | 9/10 | 6036 days | 35% |
| Alex Paice | 9/10 | 6046 days | 35% |
| Nikki Gray | 9/10 | 6072 days | 35% |
| Kellie Teichmann | 10/10 | 6122 days | 36% |
| L1z4rd | 9/10 | 6141 days | 35% |
| Allie61 | 10/10 | 6187 days | 36% |
| Adam Richards | 9/10 | 6202 days | 35% |
| Nick | 9/10 | 6208 days | 35% |
| Andria Davis | 9/10 | 6215 days | 35% |
| Georgina Mulligan | 9/10 | 6215 days | 35% |
| catzmagic | 9/10 | 6216 days | 35% |
| Emily Houston | 7/10 | 6219 days | 33% |
| Nancy Dol | 8/10 | 6219 days | 35% |
| John Woodrow | 9/10 | 6223 days | 35% |
| Zara | 10/10 | 6231 days | 36% |
| Ed | 6/10 | 6231 days | 31% |
| Elle | 10/10 | 6231 days | 36% |
| Issy | 7/10 | 6231 days | 33% |
| Katharina | 10/10 | 6234 days | 36% |
| Juliet | 9/10 | 6235 days | 35% |
| paulonline | 10/10 | 6237 days | 36% |
| Marc Hertogs | 7/10 | 6238 days | 33% |
| Ash McNeil | 10/10 | 6238 days | 36% |
| Warren | 8/10 | 6262 days | 35% |
| Klaus | 9/10 | 6270 days | 35% |
| Ann Westmacott | 9/10 | 6296 days | 35% |
| Neil Cooke | 8/10 | 6304 days | 35% |
| Archie Murdoch | 8/10 | 6311 days | 35% |
| Orla | 8/10 | 6312 days | 35% |
| Andy Chapman | 8/10 | 6424 days | 35% |
| JanKovar | 7/10 | 6540 days | 33% |
| Magnus | 8/10 | 6552 days | 35% |
| Lorraine | 8/10 | 6558 days | 35% |
| Dan | 9/10 | 6563 days | 35% |
| Sarah | 8/10 | 6563 days | 35% |
| Richhouse | 8/10 | 6568 days | 35% |
| Emma Gareth | 9/10 | 6574 days | 35% |
| Karen Nellist | 10/10 | 6577 days | 36% |
| beesom | 9/10 | 6588 days | 35% |
| Janne | 7/10 | 6592 days | 33% |
| Frauke | 4/10 | 6594 days | 23% |
| Dave | 10/10 | 6599 days | 36% |
| RosalindBoyes | 7/10 | 6599 days | 33% |
| Hanna | 8/10 | 6600 days | 35% |
| LisaAllen | 10/10 | 6613 days | 36% |
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
-4.04% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 56 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 | -3.98% |
| 198 | -4.00% |
| 199 | -4.02% |
| 200 | -4.04% |
| 201 | -4.06% |
| 202 | -4.08% |
| 203 | -4.10% |
| … | … |
Balancing Adjustment
2.22% 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
85%
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.