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 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.
Sky Tower
Valid Reviews
191 Valid Reviews
The Sky Tower experience has a total of 192 reviews. There are 191 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 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
70.67%
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 | 892 days | 100% |
| Eric | 5/10 | 3333 days | 4% |
| Martin Fersebner | 7/10 | 3339 days | 5% |
| Alonso | 8/10 | 3395 days | 5% |
| Andres Gonzalez | 6/10 | 3413 days | 4% |
| Eveline | 8/10 | 3426 days | 5% |
| Anna Gruenewald | 5/10 | 3430 days | 4% |
| Camilla Geert | 6/10 | 3642 days | 3% |
| Sabrina Schneider | 8/10 | 3648 days | 4% |
| Laura Cosquer | 7/10 | 3650 days | 4% |
| Frenziska Schmid | 7/10 | 3663 days | 4% |
| Johanna Kuch | 7/10 | 3691 days | 3% |
| Carmen Pramstaller | 9/10 | 3693 days | 4% |
| Liza Braun | 8/10 | 3694 days | 4% |
| Markus Wabing | 8/10 | 3696 days | 4% |
| Uschi Pongratz | 8/10 | 3696 days | 4% |
| Nita Oussoren | 8/10 | 3696 days | 4% |
| Jessica Ruhland | 6/10 | 3696 days | 3% |
| David Soukal | 7/10 | 3697 days | 3% |
| Sabine Bergen | 7/10 | 3704 days | 3% |
| Sophie NIemann | 9/10 | 3709 days | 4% |
| Josephine | 7/10 | 3717 days | 3% |
| Pierre and Alexandra | 7/10 | 3749 days | 3% |
| Selma Krap | 9/10 | 3755 days | 3% |
| Blandine Giusti | 7/10 | 4017 days | 2% |
| Polly Rider | 8/10 | 4122 days | 1% |
| Greg Gilmore | 8/10 | 4355 days | 0% |
| Fiona Hawkins | 7/10 | 4355 days | 0% |
| Pavel Macek | 9/10 | 4364 days | 0% |
| Anna Sternberg | 5/10 | 4394 days | 2% |
| Roy Matthieu | 6/10 | 4404 days | 2% |
| Julie Ledanois | 7/10 | 4404 days | 3% |
| Pierre Gentile | 6/10 | 4404 days | 2% |
| Cindy Benayoum | 7/10 | 4404 days | 3% |
| Olivia | 8/10 | 4405 days | 3% |
| Callum | 7/10 | 4405 days | 3% |
| Sophia | 6/10 | 4410 days | 2% |
| Andreas Zapke | 8/10 | 4449 days | 3% |
| Simone Pickert | 7/10 | 4450 days | 3% |
| Cindy Bonton | 7/10 | 4460 days | 3% |
| Menu | 8/10 | 4748 days | 3% |
| Christian | 5/10 | 4751 days | 2% |
| Nora | 7/10 | 4751 days | 3% |
| Michael Nolan | 10/10 | 4758 days | 3% |
| Sebastian | 8/10 | 4762 days | 3% |
| Tobi | 9/10 | 4763 days | 3% |
| Chantal Mortel | 7/10 | 4763 days | 3% |
| Alessa Ndra | 10/10 | 4768 days | 3% |
| Fabian Brand | 5/10 | 4779 days | 2% |
| Kyle Guffei | 10/10 | 4781 days | 3% |
| Henrik Steinruecken | 8/10 | 4830 days | 3% |
| Doan | 6/10 | 4853 days | 2% |
| Judy | 10/10 | 4857 days | 3% |
| Petra | 7/10 | 4859 days | 3% |
| Selwindt | 9/10 | 5117 days | 3% |
| Mats Harstedt | 7/10 | 5132 days | 3% |
| Mark Bogton | 8/10 | 5132 days | 3% |
| R E Webb | 9/10 | 5135 days | 3% |
| Roland Hofmann | 7/10 | 5138 days | 3% |
| Lepied | 7/10 | 5139 days | 3% |
| Carla Mathieu | 10/10 | 5142 days | 3% |
| Graham Swinyard | 7/10 | 5146 days | 3% |
| Kurt Furuskar | 9/10 | 5163 days | 3% |
| _mel_ | 8/10 | 5183 days | 3% |
| Theresa | 9/10 | 5230 days | 3% |
| Frans van der Kroon | 8/10 | 5231 days | 3% |
| Elke & Charlotte | 8/10 | 5234 days | 3% |
| Gary A | 9/10 | 5244 days | 3% |
| katel86 | 5/10 | 5305 days | 2% |
| Dogoneit | 4/10 | 5458 days | 2% |
| Shoko Watanabe | 8/10 | 5458 days | 3% |
| Markus | 8/10 | 5461 days | 3% |
| Binder | 8/10 | 5473 days | 3% |
| Nicola Thackray | 7/10 | 5476 days | 3% |
| Katy Bourne | 8/10 | 5483 days | 3% |
| Michael Assfalg | 8/10 | 5488 days | 3% |
| Jon_and_Family | 9/10 | 5489 days | 3% |
| M Holierhoek | 7/10 | 5491 days | 3% |
| Berger | 9/10 | 5493 days | 3% |
| Ron Pantzer | 7/10 | 5498 days | 3% |
| Julian Seizinger | 9/10 | 5504 days | 3% |
| Olivia Carvill | 8/10 | 5505 days | 3% |
| Jarob Brezigar | 5/10 | 5510 days | 2% |
| Markus Richert | 6/10 | 5511 days | 2% |
| Christina Fischer | 5/10 | 5512 days | 2% |
| Bruce & Bonnie Childs | 9/10 | 5516 days | 3% |
| hendrik king | 9/10 | 5548 days | 3% |
| craigy | 6/10 | 5701 days | 2% |
| Monica Askew | 9/10 | 5771 days | 3% |
| Adam Gerrard | 8/10 | 5784 days | 3% |
| Sophie & Joffrey | 7/10 | 5788 days | 3% |
| steveE | 7/10 | 5793 days | 3% |
| Alan & Lorna | 8/10 | 5847 days | 3% |
| Mr and Mrs Scott | 5/10 | 5854 days | 2% |
| B Willmore | 10/10 | 5856 days | 3% |
| Pete H | 10/10 | 5863 days | 3% |
| Johan Wisselo | 7/10 | 5874 days | 3% |
| Tanja Titze | 10/10 | 5875 days | 3% |
| Groen | 8/10 | 5879 days | 3% |
| Kasper | 5/10 | 5880 days | 2% |
| Laura Walters | 8/10 | 5881 days | 3% |
| Ines Diana | 8/10 | 5881 days | 3% |
| uleugel | 8/10 | 5891 days | 3% |
| deanlaw | 9/10 | 5927 days | 3% |
| menzel | 8/10 | 5927 days | 3% |
| blokzyl | 7/10 | 5933 days | 3% |
| braunweiler | 9/10 | 5933 days | 3% |
| Marshall | 9/10 | 5946 days | 3% |
| Karin Linder | 9/10 | 5948 days | 3% |
| Lisette X | 7/10 | 5952 days | 3% |
| Louis Duhaime | 8/10 | 5955 days | 3% |
| paulandcathy | 8/10 | 5999 days | 3% |
| clairet | 7/10 | 6053 days | 3% |
| johannac | 7/10 | 6063 days | 3% |
| Miranda | 8/10 | 6066 days | 3% |
| Charles Lyne | 10/10 | 6158 days | 3% |
| Andrew Lonsdale | 5/10 | 6176 days | 2% |
| RubyJ | 8/10 | 6180 days | 3% |
| arthurwa | 10/10 | 6188 days | 3% |
| Peter Jackie | 7/10 | 6191 days | 3% |
| FiensG | 8/10 | 6207 days | 3% |
| Erik | 7/10 | 6211 days | 3% |
| Grimm | 9/10 | 6212 days | 3% |
| Marlena | 10/10 | 6212 days | 3% |
| Nick | 9/10 | 6217 days | 3% |
| RichardE | 9/10 | 6223 days | 3% |
| Sarah | 7/10 | 6225 days | 3% |
| Manfred | 9/10 | 6225 days | 3% |
| Majken | 5/10 | 6232 days | 2% |
| AurelieD | 7/10 | 6235 days | 3% |
| Nanno | 7/10 | 6239 days | 3% |
| MartinD | 7/10 | 6246 days | 3% |
| Danielle | 10/10 | 6253 days | 3% |
| Sonja | 8/10 | 6255 days | 3% |
| Maettu | 8/10 | 6278 days | 3% |
| Stephanie | 9/10 | 6288 days | 3% |
| Katherine | 7/10 | 6293 days | 3% |
| Claire | 7/10 | 6301 days | 3% |
| helen | 8/10 | 6301 days | 3% |
| Maggie | 9/10 | 6307 days | 3% |
| Patricia | 10/10 | 6310 days | 3% |
| Antonella | 9/10 | 6363 days | 3% |
| Gray | 5/10 | 6424 days | 2% |
| Thomas Bachmann | 8/10 | 6437 days | 3% |
| Leanne Priestley | 8/10 | 6559 days | 3% |
| Amy Clark | 7/10 | 6559 days | 3% |
| Toby | 9/10 | 6560 days | 3% |
| Vikki | 10/10 | 6564 days | 3% |
| Ovin | 9/10 | 6564 days | 3% |
| AlanN316 | 9/10 | 6569 days | 3% |
| Yayami Kimura | 9/10 | 6571 days | 3% |
| Demo | 6/10 | 6572 days | 2% |
| RhysP | 8/10 | 6573 days | 3% |
| Sarah Maudsley | 7/10 | 6574 days | 3% |
| Benjamin Krein | 8/10 | 6579 days | 3% |
| Tina Daly | 6/10 | 6580 days | 2% |
| Ohad | 9/10 | 6581 days | 3% |
| Kathy Hawey | 8/10 | 6587 days | 3% |
| David Buckley | 9/10 | 6588 days | 3% |
| Jackie Horwell | 10/10 | 6589 days | 3% |
| Carla | 7/10 | 6600 days | 3% |
| Hanna | 7/10 | 6601 days | 3% |
| Reina Lohaye | 7/10 | 6603 days | 3% |
| Line Oehlinschloger | 5/10 | 6627 days | 2% |
| Tim | 8/10 | 6628 days | 3% |
| Mette de Graap | 7/10 | 6630 days | 3% |
| Andrew Porter | 8/10 | 6636 days | 3% |
| Gerber Liselotte | 9/10 | 6662 days | 3% |
| Samuel Brejeon | 7/10 | 6673 days | 3% |
| Christin | 8/10 | 6678 days | 3% |
| Orla | 3/10 | 6678 days | 1% |
| Pat Brewster | 7/10 | 6790 days | 3% |
| Natalia | 8/10 | 6874 days | 3% |
| Miriam&Eva | 8/10 | 6878 days | 3% |
| Caroline | 8/10 | 6894 days | 3% |
| Klaus | 4/10 | 6895 days | 2% |
| Bonnie | 6/10 | 6898 days | 2% |
| Franklin | 7/10 | 6898 days | 3% |
| Stephanie | 8/10 | 6899 days | 3% |
| andrew julie | 7/10 | 6912 days | 3% |
| Nancy Bill | 7/10 | 6912 days | 3% |
| Daniel | 7/10 | 6914 days | 3% |
| clairekidd | 5/10 | 6917 days | 2% |
| Fred Highsmith | 8/10 | 6918 days | 3% |
| Hannah | 8/10 | 6928 days | 3% |
| Detlef | 5/10 | 6932 days | 2% |
| Delgroot | 8/10 | 6946 days | 3% |
| Herman&Ineke | 5/10 | 6957 days | 2% |
| Janne | 5/10 | 6958 days | 2% |
| Rolf | 9/10 | 6966 days | 3% |
| Nicole | 8/10 | 6966 days | 3% |
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
-4.03% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 | -3.97% |
| 198 | -3.99% |
| 199 | -4.01% |
| 200 | -4.03% |
| 201 | -4.05% |
| 202 | -4.07% |
| 203 | -4.09% |
| … | … |
Balancing Adjustment
9.07% 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
76%
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.