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 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
71.52%
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 | 973 days | 100% |
| Eric | 5/10 | 3414 days | 4% |
| Martin Fersebner | 7/10 | 3420 days | 5% |
| Alonso | 8/10 | 3476 days | 5% |
| Andres Gonzalez | 6/10 | 3494 days | 4% |
| Eveline | 8/10 | 3507 days | 4% |
| Anna Gruenewald | 5/10 | 3511 days | 3% |
| Camilla Geert | 6/10 | 3723 days | 3% |
| Sabrina Schneider | 8/10 | 3729 days | 3% |
| Laura Cosquer | 7/10 | 3731 days | 3% |
| Frenziska Schmid | 7/10 | 3744 days | 3% |
| Johanna Kuch | 7/10 | 3772 days | 3% |
| Carmen Pramstaller | 9/10 | 3774 days | 3% |
| Liza Braun | 8/10 | 3775 days | 3% |
| Markus Wabing | 8/10 | 3777 days | 3% |
| Uschi Pongratz | 8/10 | 3777 days | 3% |
| Nita Oussoren | 8/10 | 3777 days | 3% |
| Jessica Ruhland | 6/10 | 3777 days | 2% |
| David Soukal | 7/10 | 3778 days | 3% |
| Sabine Bergen | 7/10 | 3785 days | 2% |
| Sophie NIemann | 9/10 | 3790 days | 3% |
| Josephine | 7/10 | 3798 days | 2% |
| Pierre and Alexandra | 7/10 | 3830 days | 2% |
| Selma Krap | 9/10 | 3836 days | 2% |
| Blandine Giusti | 7/10 | 4098 days | 1% |
| Polly Rider | 8/10 | 4203 days | 0% |
| Greg Gilmore | 8/10 | 4436 days | 2% |
| Fiona Hawkins | 7/10 | 4436 days | 2% |
| Pavel Macek | 9/10 | 4445 days | 2% |
| Anna Sternberg | 5/10 | 4475 days | 1% |
| Roy Matthieu | 6/10 | 4485 days | 2% |
| Julie Ledanois | 7/10 | 4485 days | 2% |
| Pierre Gentile | 6/10 | 4485 days | 2% |
| Cindy Benayoum | 7/10 | 4485 days | 2% |
| Olivia | 8/10 | 4486 days | 2% |
| Callum | 7/10 | 4486 days | 2% |
| Sophia | 6/10 | 4491 days | 2% |
| Andreas Zapke | 8/10 | 4530 days | 2% |
| Simone Pickert | 7/10 | 4531 days | 2% |
| Cindy Bonton | 7/10 | 4541 days | 2% |
| Menu | 8/10 | 4829 days | 2% |
| Christian | 5/10 | 4832 days | 1% |
| Nora | 7/10 | 4832 days | 2% |
| Michael Nolan | 10/10 | 4839 days | 2% |
| Sebastian | 8/10 | 4843 days | 2% |
| Tobi | 9/10 | 4844 days | 2% |
| Chantal Mortel | 7/10 | 4844 days | 2% |
| Alessa Ndra | 10/10 | 4849 days | 2% |
| Fabian Brand | 5/10 | 4860 days | 1% |
| Kyle Guffei | 10/10 | 4862 days | 2% |
| Henrik Steinruecken | 8/10 | 4911 days | 2% |
| Doan | 6/10 | 4934 days | 2% |
| Judy | 10/10 | 4938 days | 2% |
| Petra | 7/10 | 4940 days | 2% |
| Selwindt | 9/10 | 5198 days | 2% |
| Mats Harstedt | 7/10 | 5213 days | 2% |
| Mark Bogton | 8/10 | 5213 days | 2% |
| R E Webb | 9/10 | 5216 days | 2% |
| Roland Hofmann | 7/10 | 5219 days | 2% |
| Lepied | 7/10 | 5220 days | 2% |
| Carla Mathieu | 10/10 | 5223 days | 2% |
| Graham Swinyard | 7/10 | 5227 days | 2% |
| Kurt Furuskar | 9/10 | 5244 days | 2% |
| _mel_ | 8/10 | 5264 days | 2% |
| Theresa | 9/10 | 5311 days | 2% |
| Frans van der Kroon | 8/10 | 5312 days | 2% |
| Elke & Charlotte | 8/10 | 5315 days | 2% |
| Gary A | 9/10 | 5325 days | 2% |
| katel86 | 5/10 | 5386 days | 1% |
| Dogoneit | 4/10 | 5539 days | 1% |
| Shoko Watanabe | 8/10 | 5539 days | 2% |
| Markus | 8/10 | 5542 days | 2% |
| Binder | 8/10 | 5554 days | 2% |
| Nicola Thackray | 7/10 | 5557 days | 2% |
| Katy Bourne | 8/10 | 5564 days | 2% |
| Michael Assfalg | 8/10 | 5569 days | 2% |
| Jon_and_Family | 9/10 | 5570 days | 2% |
| M Holierhoek | 7/10 | 5572 days | 2% |
| Berger | 9/10 | 5574 days | 2% |
| Ron Pantzer | 7/10 | 5579 days | 2% |
| Julian Seizinger | 9/10 | 5585 days | 2% |
| Olivia Carvill | 8/10 | 5586 days | 2% |
| Jarob Brezigar | 5/10 | 5591 days | 1% |
| Markus Richert | 6/10 | 5592 days | 2% |
| Christina Fischer | 5/10 | 5593 days | 1% |
| Bruce & Bonnie Childs | 9/10 | 5597 days | 2% |
| hendrik king | 9/10 | 5629 days | 2% |
| craigy | 6/10 | 5782 days | 2% |
| Monica Askew | 9/10 | 5852 days | 2% |
| Adam Gerrard | 8/10 | 5865 days | 2% |
| Sophie & Joffrey | 7/10 | 5869 days | 2% |
| steveE | 7/10 | 5874 days | 2% |
| Alan & Lorna | 8/10 | 5928 days | 2% |
| Mr and Mrs Scott | 5/10 | 5935 days | 1% |
| B Willmore | 10/10 | 5937 days | 2% |
| Pete H | 10/10 | 5944 days | 2% |
| Johan Wisselo | 7/10 | 5955 days | 2% |
| Tanja Titze | 10/10 | 5956 days | 2% |
| Groen | 8/10 | 5960 days | 2% |
| Kasper | 5/10 | 5961 days | 1% |
| Laura Walters | 8/10 | 5962 days | 2% |
| Ines Diana | 8/10 | 5962 days | 2% |
| uleugel | 8/10 | 5972 days | 2% |
| deanlaw | 9/10 | 6008 days | 2% |
| menzel | 8/10 | 6008 days | 2% |
| blokzyl | 7/10 | 6014 days | 2% |
| braunweiler | 9/10 | 6014 days | 2% |
| Marshall | 9/10 | 6027 days | 2% |
| Karin Linder | 9/10 | 6029 days | 2% |
| Lisette X | 7/10 | 6033 days | 2% |
| Louis Duhaime | 8/10 | 6036 days | 2% |
| paulandcathy | 8/10 | 6080 days | 2% |
| clairet | 7/10 | 6134 days | 2% |
| johannac | 7/10 | 6144 days | 2% |
| Miranda | 8/10 | 6147 days | 2% |
| Charles Lyne | 10/10 | 6239 days | 2% |
| Andrew Lonsdale | 5/10 | 6257 days | 1% |
| RubyJ | 8/10 | 6261 days | 2% |
| arthurwa | 10/10 | 6269 days | 2% |
| Peter Jackie | 7/10 | 6272 days | 2% |
| FiensG | 8/10 | 6288 days | 2% |
| Erik | 7/10 | 6291 days | 2% |
| Grimm | 9/10 | 6292 days | 2% |
| Marlena | 10/10 | 6292 days | 2% |
| Nick | 9/10 | 6298 days | 2% |
| RichardE | 9/10 | 6304 days | 2% |
| Sarah | 7/10 | 6305 days | 2% |
| Manfred | 9/10 | 6305 days | 2% |
| Majken | 5/10 | 6312 days | 1% |
| AurelieD | 7/10 | 6316 days | 2% |
| Nanno | 7/10 | 6319 days | 2% |
| MartinD | 7/10 | 6327 days | 2% |
| Danielle | 10/10 | 6333 days | 2% |
| Sonja | 8/10 | 6336 days | 2% |
| Maettu | 8/10 | 6359 days | 2% |
| Stephanie | 9/10 | 6369 days | 2% |
| Katherine | 7/10 | 6374 days | 2% |
| Claire | 7/10 | 6381 days | 2% |
| helen | 8/10 | 6381 days | 2% |
| Maggie | 9/10 | 6387 days | 2% |
| Patricia | 10/10 | 6390 days | 2% |
| Antonella | 9/10 | 6443 days | 2% |
| Gray | 5/10 | 6504 days | 1% |
| Thomas Bachmann | 8/10 | 6517 days | 2% |
| Leanne Priestley | 8/10 | 6640 days | 2% |
| Amy Clark | 7/10 | 6640 days | 2% |
| Toby | 9/10 | 6641 days | 2% |
| Vikki | 10/10 | 6645 days | 2% |
| Ovin | 9/10 | 6645 days | 2% |
| AlanN316 | 9/10 | 6650 days | 2% |
| Yayami Kimura | 9/10 | 6652 days | 2% |
| Demo | 6/10 | 6653 days | 2% |
| RhysP | 8/10 | 6654 days | 2% |
| Sarah Maudsley | 7/10 | 6655 days | 2% |
| Benjamin Krein | 8/10 | 6660 days | 2% |
| Tina Daly | 6/10 | 6661 days | 2% |
| Ohad | 9/10 | 6662 days | 2% |
| Kathy Hawey | 8/10 | 6668 days | 2% |
| David Buckley | 9/10 | 6669 days | 2% |
| Jackie Horwell | 10/10 | 6670 days | 2% |
| Carla | 7/10 | 6681 days | 2% |
| Hanna | 7/10 | 6682 days | 2% |
| Reina Lohaye | 7/10 | 6684 days | 2% |
| Line Oehlinschloger | 5/10 | 6708 days | 1% |
| Tim | 8/10 | 6709 days | 2% |
| Mette de Graap | 7/10 | 6711 days | 2% |
| Andrew Porter | 8/10 | 6717 days | 2% |
| Gerber Liselotte | 9/10 | 6743 days | 2% |
| Samuel Brejeon | 7/10 | 6754 days | 2% |
| Christin | 8/10 | 6759 days | 2% |
| Orla | 3/10 | 6759 days | 1% |
| Pat Brewster | 7/10 | 6871 days | 2% |
| Natalia | 8/10 | 6955 days | 2% |
| Miriam&Eva | 8/10 | 6959 days | 2% |
| Caroline | 8/10 | 6975 days | 2% |
| Klaus | 4/10 | 6976 days | 1% |
| Bonnie | 6/10 | 6979 days | 2% |
| Franklin | 7/10 | 6979 days | 2% |
| Stephanie | 8/10 | 6980 days | 2% |
| andrew julie | 7/10 | 6993 days | 2% |
| Nancy Bill | 7/10 | 6993 days | 2% |
| Daniel | 7/10 | 6995 days | 2% |
| clairekidd | 5/10 | 6998 days | 1% |
| Fred Highsmith | 8/10 | 6999 days | 2% |
| Hannah | 8/10 | 7009 days | 2% |
| Detlef | 5/10 | 7013 days | 1% |
| Delgroot | 8/10 | 7027 days | 2% |
| Herman&Ineke | 5/10 | 7038 days | 1% |
| Janne | 5/10 | 7039 days | 1% |
| Rolf | 9/10 | 7047 days | 2% |
| Nicole | 8/10 | 7047 days | 2% |
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
-2.47% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 105 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 | -2.43% |
| 198 | -2.45% |
| 199 | -2.46% |
| 200 | -2.47% |
| 201 | -2.48% |
| 202 | -2.50% |
| 203 | -2.51% |
| … | … |
Balancing Adjustment
7.55% 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
77%
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.