Hey, 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
67.79%
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 | 355 days | 100% |
| Eric | 5/10 | 2796 days | 4% |
| Martin Fersebner | 7/10 | 2802 days | 5% |
| Alonso | 8/10 | 2858 days | 5% |
| Andres Gonzalez | 6/10 | 2876 days | 4% |
| Eveline | 8/10 | 2889 days | 5% |
| Anna Gruenewald | 5/10 | 2893 days | 3% |
| Camilla Geert | 6/10 | 3105 days | 3% |
| Sabrina Schneider | 8/10 | 3111 days | 4% |
| Laura Cosquer | 7/10 | 3113 days | 4% |
| Frenziska Schmid | 7/10 | 3126 days | 4% |
| Johanna Kuch | 7/10 | 3154 days | 4% |
| Carmen Pramstaller | 9/10 | 3156 days | 4% |
| Liza Braun | 8/10 | 3157 days | 4% |
| Markus Wabing | 8/10 | 3159 days | 4% |
| Uschi Pongratz | 8/10 | 3159 days | 4% |
| Nita Oussoren | 8/10 | 3159 days | 4% |
| Jessica Ruhland | 6/10 | 3159 days | 3% |
| David Soukal | 7/10 | 3160 days | 3% |
| Sabine Bergen | 7/10 | 3167 days | 3% |
| Sophie NIemann | 9/10 | 3172 days | 4% |
| Josephine | 7/10 | 3180 days | 3% |
| Pierre and Alexandra | 7/10 | 3212 days | 3% |
| Selma Krap | 9/10 | 3218 days | 4% |
| Blandine Giusti | 7/10 | 3480 days | 3% |
| Polly Rider | 8/10 | 3585 days | 2% |
| Greg Gilmore | 8/10 | 3818 days | 2% |
| Fiona Hawkins | 7/10 | 3818 days | 2% |
| Pavel Macek | 9/10 | 3827 days | 2% |
| Anna Sternberg | 5/10 | 3857 days | 1% |
| Roy Matthieu | 6/10 | 3867 days | 1% |
| Julie Ledanois | 7/10 | 3867 days | 1% |
| Pierre Gentile | 6/10 | 3867 days | 1% |
| Cindy Benayoum | 7/10 | 3867 days | 1% |
| Olivia | 8/10 | 3868 days | 1% |
| Callum | 7/10 | 3868 days | 1% |
| Sophia | 6/10 | 3873 days | 1% |
| Andreas Zapke | 8/10 | 3912 days | 1% |
| Simone Pickert | 7/10 | 3913 days | 1% |
| Cindy Bonton | 7/10 | 3923 days | 1% |
| Menu | 8/10 | 4211 days | 0% |
| Christian | 5/10 | 4214 days | 0% |
| Nora | 7/10 | 4214 days | 0% |
| Michael Nolan | 10/10 | 4221 days | 0% |
| Sebastian | 8/10 | 4225 days | 0% |
| Tobi | 9/10 | 4226 days | 0% |
| Chantal Mortel | 7/10 | 4226 days | 0% |
| Alessa Ndra | 10/10 | 4231 days | 0% |
| Fabian Brand | 5/10 | 4242 days | 0% |
| Kyle Guffei | 10/10 | 4244 days | 0% |
| Henrik Steinruecken | 8/10 | 4293 days | 0% |
| Doan | 6/10 | 4316 days | 0% |
| Judy | 10/10 | 4320 days | 0% |
| Petra | 7/10 | 4322 days | 0% |
| Selwindt | 9/10 | 4580 days | 1% |
| Mats Harstedt | 7/10 | 4595 days | 1% |
| Mark Bogton | 8/10 | 4595 days | 1% |
| R E Webb | 9/10 | 4598 days | 1% |
| Roland Hofmann | 7/10 | 4601 days | 1% |
| Lepied | 7/10 | 4602 days | 1% |
| Carla Mathieu | 10/10 | 4605 days | 1% |
| Graham Swinyard | 7/10 | 4609 days | 1% |
| Kurt Furuskar | 9/10 | 4626 days | 1% |
| _mel_ | 8/10 | 4646 days | 1% |
| Theresa | 9/10 | 4693 days | 1% |
| Frans van der Kroon | 8/10 | 4694 days | 1% |
| Elke & Charlotte | 8/10 | 4697 days | 1% |
| Gary A | 9/10 | 4707 days | 1% |
| katel86 | 5/10 | 4768 days | 1% |
| Dogoneit | 4/10 | 4921 days | 1% |
| Shoko Watanabe | 8/10 | 4921 days | 1% |
| Markus | 8/10 | 4924 days | 1% |
| Binder | 8/10 | 4936 days | 1% |
| Nicola Thackray | 7/10 | 4939 days | 1% |
| Katy Bourne | 8/10 | 4946 days | 1% |
| Michael Assfalg | 8/10 | 4951 days | 1% |
| Jon_and_Family | 9/10 | 4952 days | 1% |
| M Holierhoek | 7/10 | 4954 days | 1% |
| Berger | 9/10 | 4956 days | 1% |
| Ron Pantzer | 7/10 | 4961 days | 1% |
| Julian Seizinger | 9/10 | 4967 days | 1% |
| Olivia Carvill | 8/10 | 4968 days | 1% |
| Jarob Brezigar | 5/10 | 4973 days | 1% |
| Markus Richert | 6/10 | 4974 days | 1% |
| Christina Fischer | 5/10 | 4975 days | 1% |
| Bruce & Bonnie Childs | 9/10 | 4979 days | 1% |
| hendrik king | 9/10 | 5011 days | 1% |
| craigy | 6/10 | 5164 days | 1% |
| Monica Askew | 9/10 | 5234 days | 1% |
| Adam Gerrard | 8/10 | 5247 days | 1% |
| Sophie & Joffrey | 7/10 | 5251 days | 1% |
| steveE | 7/10 | 5256 days | 1% |
| Alan & Lorna | 8/10 | 5310 days | 1% |
| Mr and Mrs Scott | 5/10 | 5317 days | 1% |
| B Willmore | 10/10 | 5319 days | 1% |
| Pete H | 10/10 | 5326 days | 1% |
| Johan Wisselo | 7/10 | 5337 days | 1% |
| Tanja Titze | 10/10 | 5338 days | 1% |
| Groen | 8/10 | 5342 days | 1% |
| Kasper | 5/10 | 5343 days | 1% |
| Laura Walters | 8/10 | 5344 days | 1% |
| Ines Diana | 8/10 | 5344 days | 1% |
| uleugel | 8/10 | 5354 days | 1% |
| deanlaw | 9/10 | 5390 days | 1% |
| menzel | 8/10 | 5390 days | 1% |
| blokzyl | 7/10 | 5396 days | 1% |
| braunweiler | 9/10 | 5396 days | 1% |
| Marshall | 9/10 | 5409 days | 1% |
| Karin Linder | 9/10 | 5411 days | 1% |
| Lisette X | 7/10 | 5415 days | 1% |
| Louis Duhaime | 8/10 | 5418 days | 1% |
| paulandcathy | 8/10 | 5462 days | 1% |
| clairet | 7/10 | 5516 days | 1% |
| johannac | 7/10 | 5526 days | 1% |
| Miranda | 8/10 | 5529 days | 1% |
| Charles Lyne | 10/10 | 5621 days | 1% |
| Andrew Lonsdale | 5/10 | 5639 days | 1% |
| RubyJ | 8/10 | 5643 days | 1% |
| arthurwa | 10/10 | 5651 days | 1% |
| Peter Jackie | 7/10 | 5654 days | 1% |
| FiensG | 8/10 | 5670 days | 1% |
| Erik | 7/10 | 5673 days | 1% |
| Grimm | 9/10 | 5674 days | 1% |
| Marlena | 10/10 | 5674 days | 1% |
| Nick | 9/10 | 5680 days | 1% |
| RichardE | 9/10 | 5686 days | 1% |
| Sarah | 7/10 | 5687 days | 1% |
| Manfred | 9/10 | 5687 days | 1% |
| Majken | 5/10 | 5694 days | 1% |
| AurelieD | 7/10 | 5698 days | 1% |
| Nanno | 7/10 | 5701 days | 1% |
| MartinD | 7/10 | 5709 days | 1% |
| Danielle | 10/10 | 5715 days | 1% |
| Sonja | 8/10 | 5718 days | 1% |
| Maettu | 8/10 | 5741 days | 1% |
| Stephanie | 9/10 | 5751 days | 1% |
| Katherine | 7/10 | 5756 days | 1% |
| Claire | 7/10 | 5763 days | 1% |
| helen | 8/10 | 5764 days | 1% |
| Maggie | 9/10 | 5769 days | 1% |
| Patricia | 10/10 | 5772 days | 1% |
| Antonella | 9/10 | 5825 days | 1% |
| Gray | 5/10 | 5886 days | 1% |
| Thomas Bachmann | 8/10 | 5899 days | 1% |
| Leanne Priestley | 8/10 | 6022 days | 1% |
| Amy Clark | 7/10 | 6022 days | 1% |
| Toby | 9/10 | 6023 days | 1% |
| Vikki | 10/10 | 6027 days | 1% |
| Ovin | 9/10 | 6027 days | 1% |
| AlanN316 | 9/10 | 6032 days | 1% |
| Yayami Kimura | 9/10 | 6034 days | 1% |
| Demo | 6/10 | 6035 days | 1% |
| RhysP | 8/10 | 6036 days | 1% |
| Sarah Maudsley | 7/10 | 6037 days | 1% |
| Benjamin Krein | 8/10 | 6042 days | 1% |
| Tina Daly | 6/10 | 6043 days | 1% |
| Ohad | 9/10 | 6044 days | 1% |
| Kathy Hawey | 8/10 | 6050 days | 1% |
| David Buckley | 9/10 | 6051 days | 1% |
| Jackie Horwell | 10/10 | 6052 days | 1% |
| Carla | 7/10 | 6063 days | 1% |
| Hanna | 7/10 | 6064 days | 1% |
| Reina Lohaye | 7/10 | 6066 days | 1% |
| Line Oehlinschloger | 5/10 | 6090 days | 1% |
| Tim | 8/10 | 6091 days | 1% |
| Mette de Graap | 7/10 | 6093 days | 1% |
| Andrew Porter | 8/10 | 6099 days | 1% |
| Gerber Liselotte | 9/10 | 6125 days | 1% |
| Samuel Brejeon | 7/10 | 6136 days | 1% |
| Christin | 8/10 | 6141 days | 1% |
| Orla | 3/10 | 6141 days | 1% |
| Pat Brewster | 7/10 | 6253 days | 1% |
| Natalia | 8/10 | 6337 days | 1% |
| Miriam&Eva | 8/10 | 6341 days | 1% |
| Caroline | 8/10 | 6357 days | 1% |
| Klaus | 4/10 | 6358 days | 1% |
| Bonnie | 6/10 | 6361 days | 1% |
| Franklin | 7/10 | 6361 days | 1% |
| Stephanie | 8/10 | 6362 days | 1% |
| andrew julie | 7/10 | 6375 days | 1% |
| Nancy Bill | 7/10 | 6375 days | 1% |
| Daniel | 7/10 | 6377 days | 1% |
| clairekidd | 5/10 | 6380 days | 1% |
| Fred Highsmith | 8/10 | 6381 days | 1% |
| Hannah | 8/10 | 6391 days | 1% |
| Detlef | 5/10 | 6395 days | 1% |
| Delgroot | 8/10 | 6409 days | 1% |
| Herman&Ineke | 5/10 | 6420 days | 1% |
| Janne | 5/10 | 6421 days | 1% |
| Rolf | 9/10 | 6429 days | 1% |
| Nicole | 8/10 | 6429 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
-3.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 74 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 | -3.01% |
| 198 | -3.02% |
| 199 | -3.04% |
| 200 | -3.05% |
| 201 | -3.07% |
| 202 | -3.08% |
| 203 | -3.10% |
| … | … |
Balancing Adjustment
10.40% 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.