Kia ora, 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 Sky Tower.
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.
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Sky Tower
Valid Reviews
191 Valid Reviews
The Sky Tower experience has a total of 191 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 191 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 15 |
|
8% |
| 9/10 | 35 |
|
18% |
| 8/10 | 55 |
|
29% |
| 7/10 | 52 |
|
27% |
| 6/10 | 12 |
|
6% |
| 5/10 | 18 |
|
9% |
| 4/10 | 3 |
|
2% |
| 3/10 | 1 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
75.71% Average
The raw data average (mean) for all the Sky Tower valid reviews is 75.71% and is based on 191 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
176 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 191 valid reviews, the experience has 176 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 176 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 13 |
|
7% |
| 9/10 | 32 |
|
18% |
| 8/10 | 51 |
|
29% |
| 7/10 | 51 |
|
29% |
| 6/10 | 11 |
|
6% |
| 5/10 | 16 |
|
9% |
| 4/10 | 1 |
|
1% |
| 3/10 | 1 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
75.91% Average
The raw data average (mean) for all the Sky Tower face-to-face reviews is 75.91% and is based on 176 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
68.72%
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 |
|---|---|---|---|
| Anne N | 4/10 | 548 days | 100% |
| Eric | 5/10 | 2989 days | 3% |
| Martin Fersebner | 7/10 | 2995 days | 4% |
| Alonso | 8/10 | 3051 days | 4% |
| Andres Gonzalez | 6/10 | 3069 days | 3% |
| Eveline | 8/10 | 3082 days | 4% |
| Anna Gruenewald | 5/10 | 3086 days | 3% |
| Camilla Geert | 6/10 | 3298 days | 3% |
| Sabrina Schneider | 8/10 | 3304 days | 3% |
| Laura Cosquer | 7/10 | 3306 days | 3% |
| Frenziska Schmid | 7/10 | 3319 days | 3% |
| Johanna Kuch | 7/10 | 3347 days | 3% |
| Carmen Pramstaller | 9/10 | 3349 days | 3% |
| Liza Braun | 8/10 | 3350 days | 3% |
| Markus Wabing | 8/10 | 3352 days | 3% |
| Uschi Pongratz | 8/10 | 3352 days | 3% |
| Nita Oussoren | 8/10 | 3352 days | 3% |
| Jessica Ruhland | 6/10 | 3352 days | 2% |
| David Soukal | 7/10 | 3353 days | 3% |
| Sabine Bergen | 7/10 | 3360 days | 3% |
| Sophie NIemann | 9/10 | 3365 days | 3% |
| Josephine | 7/10 | 3373 days | 3% |
| Pierre and Alexandra | 7/10 | 3405 days | 2% |
| Selma Krap | 9/10 | 3411 days | 3% |
| Blandine Giusti | 7/10 | 3673 days | 2% |
| Polly Rider | 8/10 | 3778 days | 1% |
| Greg Gilmore | 8/10 | 4011 days | 0% |
| Fiona Hawkins | 7/10 | 4011 days | 0% |
| Pavel Macek | 9/10 | 4020 days | 0% |
| Anna Sternberg | 5/10 | 4050 days | 0% |
| Roy Matthieu | 6/10 | 4060 days | 0% |
| Julie Ledanois | 7/10 | 4060 days | 0% |
| Pierre Gentile | 6/10 | 4060 days | 0% |
| Cindy Benayoum | 7/10 | 4060 days | 0% |
| Olivia | 8/10 | 4061 days | 0% |
| Callum | 7/10 | 4061 days | 0% |
| Sophia | 6/10 | 4066 days | 0% |
| Andreas Zapke | 8/10 | 4105 days | 0% |
| Simone Pickert | 7/10 | 4106 days | 0% |
| Cindy Bonton | 7/10 | 4116 days | 0% |
| Menu | 8/10 | 4404 days | 1% |
| Christian | 5/10 | 4407 days | 1% |
| Nora | 7/10 | 4407 days | 1% |
| Michael Nolan | 10/10 | 4414 days | 1% |
| Sebastian | 8/10 | 4418 days | 1% |
| Tobi | 9/10 | 4419 days | 1% |
| Chantal Mortel | 7/10 | 4419 days | 1% |
| Alessa Ndra | 10/10 | 4424 days | 1% |
| Fabian Brand | 5/10 | 4435 days | 1% |
| Kyle Guffei | 10/10 | 4437 days | 1% |
| Henrik Steinruecken | 8/10 | 4486 days | 1% |
| Doan | 6/10 | 4509 days | 1% |
| Judy | 10/10 | 4513 days | 1% |
| Petra | 7/10 | 4515 days | 1% |
| Selwindt | 9/10 | 4773 days | 1% |
| Mats Harstedt | 7/10 | 4788 days | 1% |
| Mark Bogton | 8/10 | 4788 days | 1% |
| R E Webb | 9/10 | 4791 days | 1% |
| Roland Hofmann | 7/10 | 4794 days | 1% |
| Lepied | 7/10 | 4795 days | 1% |
| Carla Mathieu | 10/10 | 4798 days | 1% |
| Graham Swinyard | 7/10 | 4802 days | 1% |
| Kurt Furuskar | 9/10 | 4819 days | 1% |
| _mel_ | 8/10 | 4839 days | 1% |
| Theresa | 9/10 | 4886 days | 1% |
| Frans van der Kroon | 8/10 | 4887 days | 1% |
| Elke & Charlotte | 8/10 | 4890 days | 1% |
| Gary A | 9/10 | 4900 days | 1% |
| katel86 | 5/10 | 4961 days | 1% |
| Dogoneit | 4/10 | 5114 days | 0% |
| Shoko Watanabe | 8/10 | 5114 days | 1% |
| Markus | 8/10 | 5117 days | 1% |
| Binder | 8/10 | 5129 days | 1% |
| Nicola Thackray | 7/10 | 5132 days | 1% |
| Katy Bourne | 8/10 | 5139 days | 1% |
| Michael Assfalg | 8/10 | 5144 days | 1% |
| Jon_and_Family | 9/10 | 5145 days | 1% |
| M Holierhoek | 7/10 | 5147 days | 1% |
| Berger | 9/10 | 5149 days | 1% |
| Ron Pantzer | 7/10 | 5154 days | 1% |
| Julian Seizinger | 9/10 | 5160 days | 1% |
| Olivia Carvill | 8/10 | 5161 days | 1% |
| Jarob Brezigar | 5/10 | 5166 days | 1% |
| Markus Richert | 6/10 | 5167 days | 1% |
| Christina Fischer | 5/10 | 5168 days | 1% |
| Bruce & Bonnie Childs | 9/10 | 5172 days | 1% |
| hendrik king | 9/10 | 5204 days | 1% |
| craigy | 6/10 | 5357 days | 1% |
| Monica Askew | 9/10 | 5427 days | 1% |
| Adam Gerrard | 8/10 | 5440 days | 1% |
| Sophie & Joffrey | 7/10 | 5444 days | 1% |
| steveE | 7/10 | 5449 days | 1% |
| Alan & Lorna | 8/10 | 5503 days | 1% |
| Mr and Mrs Scott | 5/10 | 5510 days | 1% |
| B Willmore | 10/10 | 5512 days | 1% |
| Pete H | 10/10 | 5519 days | 1% |
| Johan Wisselo | 7/10 | 5530 days | 1% |
| Tanja Titze | 10/10 | 5531 days | 1% |
| Groen | 8/10 | 5535 days | 1% |
| Kasper | 5/10 | 5536 days | 1% |
| Laura Walters | 8/10 | 5537 days | 1% |
| Ines Diana | 8/10 | 5537 days | 1% |
| uleugel | 8/10 | 5547 days | 1% |
| deanlaw | 9/10 | 5583 days | 1% |
| menzel | 8/10 | 5583 days | 1% |
| blokzyl | 7/10 | 5589 days | 1% |
| braunweiler | 9/10 | 5589 days | 1% |
| Marshall | 9/10 | 5602 days | 1% |
| Karin Linder | 9/10 | 5604 days | 1% |
| Lisette X | 7/10 | 5608 days | 1% |
| Louis Duhaime | 8/10 | 5611 days | 1% |
| paulandcathy | 8/10 | 5655 days | 1% |
| clairet | 7/10 | 5709 days | 1% |
| johannac | 7/10 | 5719 days | 1% |
| Miranda | 8/10 | 5722 days | 1% |
| Charles Lyne | 10/10 | 5814 days | 1% |
| Andrew Lonsdale | 5/10 | 5832 days | 1% |
| RubyJ | 8/10 | 5836 days | 1% |
| arthurwa | 10/10 | 5844 days | 1% |
| Peter Jackie | 7/10 | 5847 days | 1% |
| FiensG | 8/10 | 5863 days | 1% |
| Erik | 7/10 | 5867 days | 1% |
| Grimm | 9/10 | 5868 days | 1% |
| Marlena | 10/10 | 5868 days | 1% |
| Nick | 9/10 | 5873 days | 1% |
| RichardE | 9/10 | 5879 days | 1% |
| Sarah | 7/10 | 5881 days | 1% |
| Manfred | 9/10 | 5881 days | 1% |
| Majken | 5/10 | 5888 days | 1% |
| AurelieD | 7/10 | 5891 days | 1% |
| Nanno | 7/10 | 5895 days | 1% |
| MartinD | 7/10 | 5902 days | 1% |
| Danielle | 10/10 | 5909 days | 1% |
| Sonja | 8/10 | 5911 days | 1% |
| Maettu | 8/10 | 5934 days | 1% |
| Stephanie | 9/10 | 5944 days | 1% |
| Katherine | 7/10 | 5949 days | 1% |
| Claire | 7/10 | 5957 days | 1% |
| helen | 8/10 | 5957 days | 1% |
| Maggie | 9/10 | 5962 days | 1% |
| Patricia | 10/10 | 5966 days | 1% |
| Antonella | 9/10 | 6019 days | 1% |
| Gray | 5/10 | 6080 days | 1% |
| Thomas Bachmann | 8/10 | 6093 days | 1% |
| Leanne Priestley | 8/10 | 6215 days | 1% |
| Amy Clark | 7/10 | 6215 days | 1% |
| Toby | 9/10 | 6216 days | 1% |
| Vikki | 10/10 | 6220 days | 1% |
| Ovin | 9/10 | 6220 days | 1% |
| AlanN316 | 9/10 | 6225 days | 1% |
| Yayami Kimura | 9/10 | 6227 days | 1% |
| Demo | 6/10 | 6228 days | 1% |
| RhysP | 8/10 | 6229 days | 1% |
| Sarah Maudsley | 7/10 | 6230 days | 1% |
| Benjamin Krein | 8/10 | 6235 days | 1% |
| Tina Daly | 6/10 | 6236 days | 1% |
| Ohad | 9/10 | 6237 days | 1% |
| Kathy Hawey | 8/10 | 6243 days | 1% |
| David Buckley | 9/10 | 6244 days | 1% |
| Jackie Horwell | 10/10 | 6245 days | 1% |
| Carla | 7/10 | 6256 days | 1% |
| Hanna | 7/10 | 6257 days | 1% |
| Reina Lohaye | 7/10 | 6259 days | 1% |
| Line Oehlinschloger | 5/10 | 6283 days | 1% |
| Tim | 8/10 | 6284 days | 1% |
| Mette de Graap | 7/10 | 6286 days | 1% |
| Andrew Porter | 8/10 | 6292 days | 1% |
| Gerber Liselotte | 9/10 | 6318 days | 1% |
| Samuel Brejeon | 7/10 | 6329 days | 1% |
| Christin | 8/10 | 6334 days | 1% |
| Orla | 3/10 | 6334 days | 0% |
| Pat Brewster | 7/10 | 6446 days | 1% |
| Natalia | 8/10 | 6530 days | 1% |
| Miriam&Eva | 8/10 | 6534 days | 1% |
| Caroline | 8/10 | 6550 days | 1% |
| Klaus | 4/10 | 6551 days | 0% |
| Bonnie | 6/10 | 6554 days | 1% |
| Franklin | 7/10 | 6554 days | 1% |
| Stephanie | 8/10 | 6555 days | 1% |
| andrew julie | 7/10 | 6568 days | 1% |
| Nancy Bill | 7/10 | 6568 days | 1% |
| Daniel | 7/10 | 6570 days | 1% |
| clairekidd | 5/10 | 6573 days | 1% |
| Fred Highsmith | 8/10 | 6574 days | 1% |
| Hannah | 8/10 | 6584 days | 1% |
| Detlef | 5/10 | 6588 days | 1% |
| Delgroot | 8/10 | 6602 days | 1% |
| Herman&Ineke | 5/10 | 6613 days | 1% |
| Janne | 5/10 | 6614 days | 1% |
| Rolf | 9/10 | 6622 days | 1% |
| Nicole | 8/10 | 6622 days | 1% |
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 Sky Tower experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-3.74% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 60 days. However the Sky Tower 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 Sky Tower experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -3.68% |
| 198 | -3.70% |
| 199 | -3.72% |
| 200 | -3.74% |
| 201 | -3.76% |
| 202 | -3.77% |
| 203 | -3.79% |
| … | … |
Balancing Adjustment
10.23% 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
75%
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.