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 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
67.96%
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 | 418 days | 100% |
| Eric | 5/10 | 2859 days | 4% |
| Martin Fersebner | 7/10 | 2865 days | 5% |
| Alonso | 8/10 | 2921 days | 5% |
| Andres Gonzalez | 6/10 | 2939 days | 4% |
| Eveline | 8/10 | 2952 days | 5% |
| Anna Gruenewald | 5/10 | 2956 days | 4% |
| Camilla Geert | 6/10 | 3168 days | 3% |
| Sabrina Schneider | 8/10 | 3174 days | 4% |
| Laura Cosquer | 7/10 | 3176 days | 4% |
| Frenziska Schmid | 7/10 | 3189 days | 4% |
| Johanna Kuch | 7/10 | 3217 days | 4% |
| Carmen Pramstaller | 9/10 | 3219 days | 4% |
| Liza Braun | 8/10 | 3220 days | 4% |
| Markus Wabing | 8/10 | 3222 days | 4% |
| Uschi Pongratz | 8/10 | 3222 days | 4% |
| Nita Oussoren | 8/10 | 3222 days | 4% |
| Jessica Ruhland | 6/10 | 3222 days | 3% |
| David Soukal | 7/10 | 3223 days | 4% |
| Sabine Bergen | 7/10 | 3230 days | 4% |
| Sophie NIemann | 9/10 | 3235 days | 4% |
| Josephine | 7/10 | 3243 days | 4% |
| Pierre and Alexandra | 7/10 | 3275 days | 3% |
| Selma Krap | 9/10 | 3281 days | 4% |
| Blandine Giusti | 7/10 | 3543 days | 3% |
| Polly Rider | 8/10 | 3648 days | 2% |
| Greg Gilmore | 8/10 | 3880 days | 2% |
| Fiona Hawkins | 7/10 | 3880 days | 2% |
| Pavel Macek | 9/10 | 3890 days | 2% |
| Anna Sternberg | 5/10 | 3920 days | 1% |
| Roy Matthieu | 6/10 | 3930 days | 1% |
| Julie Ledanois | 7/10 | 3930 days | 1% |
| Pierre Gentile | 6/10 | 3930 days | 1% |
| Cindy Benayoum | 7/10 | 3930 days | 1% |
| Olivia | 8/10 | 3931 days | 1% |
| Callum | 7/10 | 3931 days | 1% |
| Sophia | 6/10 | 3936 days | 1% |
| Andreas Zapke | 8/10 | 3975 days | 1% |
| Simone Pickert | 7/10 | 3976 days | 1% |
| Cindy Bonton | 7/10 | 3986 days | 1% |
| Menu | 8/10 | 4274 days | 0% |
| Christian | 5/10 | 4277 days | 0% |
| Nora | 7/10 | 4277 days | 0% |
| Michael Nolan | 10/10 | 4284 days | 0% |
| Sebastian | 8/10 | 4288 days | 0% |
| Tobi | 9/10 | 4289 days | 0% |
| Chantal Mortel | 7/10 | 4289 days | 0% |
| Alessa Ndra | 10/10 | 4294 days | 0% |
| Fabian Brand | 5/10 | 4305 days | 0% |
| Kyle Guffei | 10/10 | 4307 days | 0% |
| Henrik Steinruecken | 8/10 | 4356 days | 0% |
| Doan | 6/10 | 4379 days | 0% |
| Judy | 10/10 | 4383 days | 2% |
| Petra | 7/10 | 4385 days | 2% |
| Selwindt | 9/10 | 4643 days | 2% |
| Mats Harstedt | 7/10 | 4658 days | 2% |
| Mark Bogton | 8/10 | 4658 days | 2% |
| R E Webb | 9/10 | 4661 days | 2% |
| Roland Hofmann | 7/10 | 4664 days | 2% |
| Lepied | 7/10 | 4665 days | 2% |
| Carla Mathieu | 10/10 | 4668 days | 2% |
| Graham Swinyard | 7/10 | 4672 days | 2% |
| Kurt Furuskar | 9/10 | 4689 days | 2% |
| _mel_ | 8/10 | 4709 days | 2% |
| Theresa | 9/10 | 4756 days | 2% |
| Frans van der Kroon | 8/10 | 4757 days | 2% |
| Elke & Charlotte | 8/10 | 4760 days | 2% |
| Gary A | 9/10 | 4770 days | 2% |
| katel86 | 5/10 | 4830 days | 1% |
| Dogoneit | 4/10 | 4984 days | 1% |
| Shoko Watanabe | 8/10 | 4984 days | 2% |
| Markus | 8/10 | 4987 days | 2% |
| Binder | 8/10 | 4999 days | 2% |
| Nicola Thackray | 7/10 | 5002 days | 2% |
| Katy Bourne | 8/10 | 5009 days | 2% |
| Michael Assfalg | 8/10 | 5014 days | 2% |
| Jon_and_Family | 9/10 | 5015 days | 2% |
| M Holierhoek | 7/10 | 5017 days | 2% |
| Berger | 9/10 | 5019 days | 2% |
| Ron Pantzer | 7/10 | 5024 days | 2% |
| Julian Seizinger | 9/10 | 5030 days | 2% |
| Olivia Carvill | 8/10 | 5031 days | 2% |
| Jarob Brezigar | 5/10 | 5036 days | 1% |
| Markus Richert | 6/10 | 5037 days | 1% |
| Christina Fischer | 5/10 | 5038 days | 1% |
| Bruce & Bonnie Childs | 9/10 | 5042 days | 2% |
| hendrik king | 9/10 | 5074 days | 2% |
| craigy | 6/10 | 5226 days | 1% |
| Monica Askew | 9/10 | 5296 days | 2% |
| Adam Gerrard | 8/10 | 5309 days | 2% |
| Sophie & Joffrey | 7/10 | 5313 days | 2% |
| steveE | 7/10 | 5318 days | 2% |
| Alan & Lorna | 8/10 | 5373 days | 2% |
| Mr and Mrs Scott | 5/10 | 5380 days | 1% |
| B Willmore | 10/10 | 5382 days | 2% |
| Pete H | 10/10 | 5389 days | 2% |
| Johan Wisselo | 7/10 | 5400 days | 2% |
| Tanja Titze | 10/10 | 5401 days | 2% |
| Groen | 8/10 | 5405 days | 2% |
| Kasper | 5/10 | 5406 days | 1% |
| Laura Walters | 8/10 | 5407 days | 2% |
| Ines Diana | 8/10 | 5407 days | 2% |
| uleugel | 8/10 | 5417 days | 2% |
| deanlaw | 9/10 | 5453 days | 2% |
| menzel | 8/10 | 5453 days | 2% |
| blokzyl | 7/10 | 5459 days | 2% |
| braunweiler | 9/10 | 5459 days | 2% |
| Marshall | 9/10 | 5472 days | 2% |
| Karin Linder | 9/10 | 5474 days | 2% |
| Lisette X | 7/10 | 5478 days | 2% |
| Louis Duhaime | 8/10 | 5481 days | 2% |
| paulandcathy | 8/10 | 5525 days | 2% |
| clairet | 7/10 | 5578 days | 2% |
| johannac | 7/10 | 5588 days | 2% |
| Miranda | 8/10 | 5591 days | 2% |
| Charles Lyne | 10/10 | 5683 days | 2% |
| Andrew Lonsdale | 5/10 | 5701 days | 1% |
| RubyJ | 8/10 | 5705 days | 2% |
| arthurwa | 10/10 | 5714 days | 2% |
| Peter Jackie | 7/10 | 5717 days | 2% |
| FiensG | 8/10 | 5733 days | 2% |
| Erik | 7/10 | 5736 days | 2% |
| Grimm | 9/10 | 5737 days | 2% |
| Marlena | 10/10 | 5737 days | 2% |
| Nick | 9/10 | 5742 days | 2% |
| RichardE | 9/10 | 5749 days | 2% |
| Sarah | 7/10 | 5750 days | 2% |
| Manfred | 9/10 | 5750 days | 2% |
| Majken | 5/10 | 5757 days | 1% |
| AurelieD | 7/10 | 5761 days | 2% |
| Nanno | 7/10 | 5764 days | 2% |
| MartinD | 7/10 | 5772 days | 2% |
| Danielle | 10/10 | 5778 days | 2% |
| Sonja | 8/10 | 5781 days | 2% |
| Maettu | 8/10 | 5804 days | 2% |
| Stephanie | 9/10 | 5814 days | 2% |
| Katherine | 7/10 | 5818 days | 2% |
| Claire | 7/10 | 5826 days | 2% |
| helen | 8/10 | 5826 days | 2% |
| Maggie | 9/10 | 5832 days | 2% |
| Patricia | 10/10 | 5835 days | 2% |
| Antonella | 9/10 | 5888 days | 2% |
| Gray | 5/10 | 5949 days | 1% |
| Thomas Bachmann | 8/10 | 5962 days | 2% |
| Leanne Priestley | 8/10 | 6085 days | 2% |
| Amy Clark | 7/10 | 6085 days | 2% |
| Toby | 9/10 | 6086 days | 2% |
| Vikki | 10/10 | 6090 days | 2% |
| Ovin | 9/10 | 6090 days | 2% |
| AlanN316 | 9/10 | 6095 days | 2% |
| Yayami Kimura | 9/10 | 6097 days | 2% |
| Demo | 6/10 | 6098 days | 1% |
| RhysP | 8/10 | 6099 days | 2% |
| Sarah Maudsley | 7/10 | 6100 days | 2% |
| Benjamin Krein | 8/10 | 6105 days | 2% |
| Tina Daly | 6/10 | 6106 days | 1% |
| Ohad | 9/10 | 6107 days | 2% |
| Kathy Hawey | 8/10 | 6113 days | 2% |
| David Buckley | 9/10 | 6114 days | 2% |
| Jackie Horwell | 10/10 | 6115 days | 2% |
| Carla | 7/10 | 6126 days | 2% |
| Hanna | 7/10 | 6127 days | 2% |
| Reina Lohaye | 7/10 | 6129 days | 2% |
| Line Oehlinschloger | 5/10 | 6153 days | 1% |
| Tim | 8/10 | 6154 days | 2% |
| Mette de Graap | 7/10 | 6156 days | 2% |
| Andrew Porter | 8/10 | 6162 days | 2% |
| Gerber Liselotte | 9/10 | 6188 days | 2% |
| Samuel Brejeon | 7/10 | 6199 days | 2% |
| Christin | 8/10 | 6204 days | 2% |
| Orla | 3/10 | 6204 days | 1% |
| Pat Brewster | 7/10 | 6315 days | 2% |
| Natalia | 8/10 | 6399 days | 2% |
| Miriam&Eva | 8/10 | 6403 days | 2% |
| Caroline | 8/10 | 6419 days | 2% |
| Klaus | 4/10 | 6420 days | 1% |
| Bonnie | 6/10 | 6423 days | 1% |
| Franklin | 7/10 | 6423 days | 2% |
| Stephanie | 8/10 | 6424 days | 2% |
| andrew julie | 7/10 | 6437 days | 2% |
| Nancy Bill | 7/10 | 6437 days | 2% |
| Daniel | 7/10 | 6439 days | 2% |
| clairekidd | 5/10 | 6442 days | 1% |
| Fred Highsmith | 8/10 | 6443 days | 2% |
| Hannah | 8/10 | 6453 days | 2% |
| Detlef | 5/10 | 6457 days | 1% |
| Delgroot | 8/10 | 6472 days | 2% |
| Herman&Ineke | 5/10 | 6483 days | 1% |
| Janne | 5/10 | 6484 days | 1% |
| Rolf | 9/10 | 6492 days | 2% |
| Nicole | 8/10 | 6492 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
-4.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 43 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.07% |
| 202 | -4.09% |
| 203 | -4.11% |
| … | … |
Balancing Adjustment
11.00% 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.