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
71.87%
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 | 1013 days | 100% |
| Eric | 5/10 | 3454 days | 4% |
| Martin Fersebner | 7/10 | 3460 days | 5% |
| Alonso | 8/10 | 3516 days | 5% |
| Andres Gonzalez | 6/10 | 3534 days | 4% |
| Eveline | 8/10 | 3547 days | 5% |
| Anna Gruenewald | 5/10 | 3551 days | 4% |
| Camilla Geert | 6/10 | 3763 days | 3% |
| Sabrina Schneider | 8/10 | 3769 days | 3% |
| Laura Cosquer | 7/10 | 3771 days | 3% |
| Frenziska Schmid | 7/10 | 3784 days | 3% |
| Johanna Kuch | 7/10 | 3812 days | 3% |
| Carmen Pramstaller | 9/10 | 3814 days | 3% |
| Liza Braun | 8/10 | 3815 days | 3% |
| Markus Wabing | 8/10 | 3817 days | 3% |
| Uschi Pongratz | 8/10 | 3817 days | 3% |
| Nita Oussoren | 8/10 | 3817 days | 3% |
| Jessica Ruhland | 6/10 | 3817 days | 2% |
| David Soukal | 7/10 | 3818 days | 3% |
| Sabine Bergen | 7/10 | 3825 days | 3% |
| Sophie NIemann | 9/10 | 3830 days | 3% |
| Josephine | 7/10 | 3838 days | 3% |
| Pierre and Alexandra | 7/10 | 3870 days | 2% |
| Selma Krap | 9/10 | 3876 days | 3% |
| Blandine Giusti | 7/10 | 4138 days | 1% |
| Polly Rider | 8/10 | 4243 days | 0% |
| Greg Gilmore | 8/10 | 4476 days | 3% |
| Fiona Hawkins | 7/10 | 4476 days | 2% |
| Pavel Macek | 9/10 | 4485 days | 3% |
| Anna Sternberg | 5/10 | 4515 days | 2% |
| Roy Matthieu | 6/10 | 4525 days | 2% |
| Julie Ledanois | 7/10 | 4525 days | 2% |
| Pierre Gentile | 6/10 | 4525 days | 2% |
| Cindy Benayoum | 7/10 | 4525 days | 2% |
| Olivia | 8/10 | 4526 days | 3% |
| Callum | 7/10 | 4526 days | 2% |
| Sophia | 6/10 | 4531 days | 2% |
| Andreas Zapke | 8/10 | 4570 days | 3% |
| Simone Pickert | 7/10 | 4571 days | 2% |
| Cindy Bonton | 7/10 | 4581 days | 2% |
| Menu | 8/10 | 4869 days | 3% |
| Christian | 5/10 | 4872 days | 2% |
| Nora | 7/10 | 4872 days | 2% |
| Michael Nolan | 10/10 | 4879 days | 3% |
| Sebastian | 8/10 | 4883 days | 3% |
| Tobi | 9/10 | 4884 days | 3% |
| Chantal Mortel | 7/10 | 4884 days | 2% |
| Alessa Ndra | 10/10 | 4889 days | 3% |
| Fabian Brand | 5/10 | 4900 days | 2% |
| Kyle Guffei | 10/10 | 4902 days | 3% |
| Henrik Steinruecken | 8/10 | 4951 days | 3% |
| Doan | 6/10 | 4974 days | 2% |
| Judy | 10/10 | 4978 days | 3% |
| Petra | 7/10 | 4980 days | 2% |
| Selwindt | 9/10 | 5238 days | 3% |
| Mats Harstedt | 7/10 | 5253 days | 2% |
| Mark Bogton | 8/10 | 5253 days | 3% |
| R E Webb | 9/10 | 5256 days | 3% |
| Roland Hofmann | 7/10 | 5259 days | 2% |
| Lepied | 7/10 | 5260 days | 2% |
| Carla Mathieu | 10/10 | 5263 days | 3% |
| Graham Swinyard | 7/10 | 5267 days | 2% |
| Kurt Furuskar | 9/10 | 5284 days | 3% |
| _mel_ | 8/10 | 5304 days | 3% |
| Theresa | 9/10 | 5351 days | 3% |
| Frans van der Kroon | 8/10 | 5352 days | 3% |
| Elke & Charlotte | 8/10 | 5355 days | 3% |
| Gary A | 9/10 | 5365 days | 3% |
| katel86 | 5/10 | 5426 days | 2% |
| Dogoneit | 4/10 | 5579 days | 1% |
| Shoko Watanabe | 8/10 | 5579 days | 3% |
| Markus | 8/10 | 5582 days | 3% |
| Binder | 8/10 | 5594 days | 3% |
| Nicola Thackray | 7/10 | 5597 days | 2% |
| Katy Bourne | 8/10 | 5604 days | 3% |
| Michael Assfalg | 8/10 | 5609 days | 3% |
| Jon_and_Family | 9/10 | 5610 days | 3% |
| M Holierhoek | 7/10 | 5612 days | 2% |
| Berger | 9/10 | 5614 days | 3% |
| Ron Pantzer | 7/10 | 5619 days | 2% |
| Julian Seizinger | 9/10 | 5625 days | 3% |
| Olivia Carvill | 8/10 | 5626 days | 3% |
| Jarob Brezigar | 5/10 | 5631 days | 2% |
| Markus Richert | 6/10 | 5632 days | 2% |
| Christina Fischer | 5/10 | 5633 days | 2% |
| Bruce & Bonnie Childs | 9/10 | 5637 days | 3% |
| hendrik king | 9/10 | 5669 days | 3% |
| craigy | 6/10 | 5822 days | 2% |
| Monica Askew | 9/10 | 5892 days | 3% |
| Adam Gerrard | 8/10 | 5905 days | 3% |
| Sophie & Joffrey | 7/10 | 5909 days | 2% |
| steveE | 7/10 | 5914 days | 2% |
| Alan & Lorna | 8/10 | 5968 days | 3% |
| Mr and Mrs Scott | 5/10 | 5975 days | 2% |
| B Willmore | 10/10 | 5977 days | 3% |
| Pete H | 10/10 | 5984 days | 3% |
| Johan Wisselo | 7/10 | 5995 days | 2% |
| Tanja Titze | 10/10 | 5996 days | 3% |
| Groen | 8/10 | 6000 days | 3% |
| Kasper | 5/10 | 6001 days | 2% |
| Laura Walters | 8/10 | 6002 days | 3% |
| Ines Diana | 8/10 | 6002 days | 3% |
| uleugel | 8/10 | 6012 days | 3% |
| deanlaw | 9/10 | 6048 days | 3% |
| menzel | 8/10 | 6048 days | 3% |
| blokzyl | 7/10 | 6054 days | 2% |
| braunweiler | 9/10 | 6054 days | 3% |
| Marshall | 9/10 | 6067 days | 3% |
| Karin Linder | 9/10 | 6069 days | 3% |
| Lisette X | 7/10 | 6073 days | 2% |
| Louis Duhaime | 8/10 | 6076 days | 3% |
| paulandcathy | 8/10 | 6120 days | 3% |
| clairet | 7/10 | 6174 days | 2% |
| johannac | 7/10 | 6184 days | 2% |
| Miranda | 8/10 | 6187 days | 3% |
| Charles Lyne | 10/10 | 6279 days | 3% |
| Andrew Lonsdale | 5/10 | 6297 days | 2% |
| RubyJ | 8/10 | 6301 days | 3% |
| arthurwa | 10/10 | 6309 days | 3% |
| Peter Jackie | 7/10 | 6312 days | 2% |
| FiensG | 8/10 | 6328 days | 3% |
| Erik | 7/10 | 6332 days | 2% |
| Grimm | 9/10 | 6333 days | 3% |
| Marlena | 10/10 | 6333 days | 3% |
| Nick | 9/10 | 6338 days | 3% |
| RichardE | 9/10 | 6344 days | 3% |
| Sarah | 7/10 | 6346 days | 2% |
| Manfred | 9/10 | 6346 days | 3% |
| Majken | 5/10 | 6353 days | 2% |
| AurelieD | 7/10 | 6356 days | 2% |
| Nanno | 7/10 | 6360 days | 2% |
| MartinD | 7/10 | 6367 days | 2% |
| Danielle | 10/10 | 6374 days | 3% |
| Sonja | 8/10 | 6376 days | 3% |
| Maettu | 8/10 | 6399 days | 3% |
| Stephanie | 9/10 | 6409 days | 3% |
| Katherine | 7/10 | 6414 days | 2% |
| Claire | 7/10 | 6422 days | 2% |
| helen | 8/10 | 6422 days | 3% |
| Maggie | 9/10 | 6428 days | 3% |
| Patricia | 10/10 | 6431 days | 3% |
| Antonella | 9/10 | 6484 days | 3% |
| Gray | 5/10 | 6545 days | 2% |
| Thomas Bachmann | 8/10 | 6558 days | 3% |
| Leanne Priestley | 8/10 | 6680 days | 3% |
| Amy Clark | 7/10 | 6680 days | 2% |
| Toby | 9/10 | 6681 days | 3% |
| Vikki | 10/10 | 6685 days | 3% |
| Ovin | 9/10 | 6685 days | 3% |
| AlanN316 | 9/10 | 6690 days | 3% |
| Yayami Kimura | 9/10 | 6692 days | 3% |
| Demo | 6/10 | 6693 days | 2% |
| RhysP | 8/10 | 6694 days | 3% |
| Sarah Maudsley | 7/10 | 6695 days | 2% |
| Benjamin Krein | 8/10 | 6700 days | 3% |
| Tina Daly | 6/10 | 6701 days | 2% |
| Ohad | 9/10 | 6702 days | 3% |
| Kathy Hawey | 8/10 | 6708 days | 3% |
| David Buckley | 9/10 | 6709 days | 3% |
| Jackie Horwell | 10/10 | 6710 days | 3% |
| Carla | 7/10 | 6721 days | 2% |
| Hanna | 7/10 | 6722 days | 2% |
| Reina Lohaye | 7/10 | 6724 days | 2% |
| Line Oehlinschloger | 5/10 | 6748 days | 2% |
| Tim | 8/10 | 6749 days | 3% |
| Mette de Graap | 7/10 | 6751 days | 2% |
| Andrew Porter | 8/10 | 6757 days | 3% |
| Gerber Liselotte | 9/10 | 6783 days | 3% |
| Samuel Brejeon | 7/10 | 6794 days | 2% |
| Christin | 8/10 | 6799 days | 3% |
| Orla | 3/10 | 6799 days | 1% |
| Pat Brewster | 7/10 | 6911 days | 2% |
| Natalia | 8/10 | 6995 days | 3% |
| Miriam&Eva | 8/10 | 6999 days | 3% |
| Caroline | 8/10 | 7015 days | 3% |
| Klaus | 4/10 | 7016 days | 1% |
| Bonnie | 6/10 | 7019 days | 2% |
| Franklin | 7/10 | 7019 days | 2% |
| Stephanie | 8/10 | 7020 days | 3% |
| andrew julie | 7/10 | 7033 days | 2% |
| Nancy Bill | 7/10 | 7033 days | 2% |
| Daniel | 7/10 | 7035 days | 2% |
| clairekidd | 5/10 | 7038 days | 2% |
| Fred Highsmith | 8/10 | 7039 days | 3% |
| Hannah | 8/10 | 7049 days | 3% |
| Detlef | 5/10 | 7053 days | 2% |
| Delgroot | 8/10 | 7067 days | 3% |
| Herman&Ineke | 5/10 | 7078 days | 2% |
| Janne | 5/10 | 7079 days | 2% |
| Rolf | 9/10 | 7087 days | 3% |
| Nicole | 8/10 | 7087 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
-2.00% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 125 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 | -1.97% |
| 198 | -1.98% |
| 199 | -1.99% |
| 200 | -2.00% |
| 201 | -2.01% |
| 202 | -2.02% |
| 203 | -2.03% |
| … | … |
Balancing Adjustment
7.07% 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
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.