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 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
70.94%
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 | 913 days | 100% |
| Eric | 5/10 | 3354 days | 4% |
| Martin Fersebner | 7/10 | 3360 days | 5% |
| Alonso | 8/10 | 3416 days | 5% |
| Andres Gonzalez | 6/10 | 3434 days | 5% |
| Eveline | 8/10 | 3447 days | 5% |
| Anna Gruenewald | 5/10 | 3451 days | 4% |
| Camilla Geert | 6/10 | 3663 days | 4% |
| Sabrina Schneider | 8/10 | 3669 days | 4% |
| Laura Cosquer | 7/10 | 3671 days | 4% |
| Frenziska Schmid | 7/10 | 3684 days | 4% |
| Johanna Kuch | 7/10 | 3712 days | 4% |
| Carmen Pramstaller | 9/10 | 3714 days | 4% |
| Liza Braun | 8/10 | 3715 days | 4% |
| Markus Wabing | 8/10 | 3717 days | 4% |
| Uschi Pongratz | 8/10 | 3717 days | 4% |
| Nita Oussoren | 8/10 | 3717 days | 4% |
| Jessica Ruhland | 6/10 | 3717 days | 3% |
| David Soukal | 7/10 | 3718 days | 3% |
| Sabine Bergen | 7/10 | 3725 days | 3% |
| Sophie NIemann | 9/10 | 3730 days | 4% |
| Josephine | 7/10 | 3738 days | 3% |
| Pierre and Alexandra | 7/10 | 3770 days | 3% |
| Selma Krap | 9/10 | 3776 days | 3% |
| Blandine Giusti | 7/10 | 4038 days | 2% |
| Polly Rider | 8/10 | 4143 days | 1% |
| Greg Gilmore | 8/10 | 4376 days | 0% |
| Fiona Hawkins | 7/10 | 4376 days | 0% |
| Pavel Macek | 9/10 | 4385 days | 3% |
| Anna Sternberg | 5/10 | 4415 days | 2% |
| Roy Matthieu | 6/10 | 4425 days | 2% |
| Julie Ledanois | 7/10 | 4425 days | 3% |
| Pierre Gentile | 6/10 | 4425 days | 2% |
| Cindy Benayoum | 7/10 | 4425 days | 3% |
| Olivia | 8/10 | 4426 days | 3% |
| Callum | 7/10 | 4426 days | 3% |
| Sophia | 6/10 | 4431 days | 2% |
| Andreas Zapke | 8/10 | 4470 days | 3% |
| Simone Pickert | 7/10 | 4471 days | 3% |
| Cindy Bonton | 7/10 | 4481 days | 3% |
| Menu | 8/10 | 4769 days | 3% |
| Christian | 5/10 | 4772 days | 2% |
| Nora | 7/10 | 4772 days | 3% |
| Michael Nolan | 10/10 | 4779 days | 3% |
| Sebastian | 8/10 | 4783 days | 3% |
| Tobi | 9/10 | 4784 days | 3% |
| Chantal Mortel | 7/10 | 4784 days | 3% |
| Alessa Ndra | 10/10 | 4789 days | 3% |
| Fabian Brand | 5/10 | 4800 days | 2% |
| Kyle Guffei | 10/10 | 4802 days | 3% |
| Henrik Steinruecken | 8/10 | 4851 days | 3% |
| Doan | 6/10 | 4874 days | 2% |
| Judy | 10/10 | 4878 days | 3% |
| Petra | 7/10 | 4880 days | 3% |
| Selwindt | 9/10 | 5138 days | 3% |
| Mats Harstedt | 7/10 | 5153 days | 3% |
| Mark Bogton | 8/10 | 5153 days | 3% |
| R E Webb | 9/10 | 5156 days | 3% |
| Roland Hofmann | 7/10 | 5159 days | 3% |
| Lepied | 7/10 | 5160 days | 3% |
| Carla Mathieu | 10/10 | 5163 days | 3% |
| Graham Swinyard | 7/10 | 5167 days | 3% |
| Kurt Furuskar | 9/10 | 5184 days | 3% |
| _mel_ | 8/10 | 5204 days | 3% |
| Theresa | 9/10 | 5251 days | 3% |
| Frans van der Kroon | 8/10 | 5252 days | 3% |
| Elke & Charlotte | 8/10 | 5255 days | 3% |
| Gary A | 9/10 | 5265 days | 3% |
| katel86 | 5/10 | 5326 days | 2% |
| Dogoneit | 4/10 | 5479 days | 2% |
| Shoko Watanabe | 8/10 | 5479 days | 3% |
| Markus | 8/10 | 5482 days | 3% |
| Binder | 8/10 | 5494 days | 3% |
| Nicola Thackray | 7/10 | 5497 days | 3% |
| Katy Bourne | 8/10 | 5504 days | 3% |
| Michael Assfalg | 8/10 | 5509 days | 3% |
| Jon_and_Family | 9/10 | 5510 days | 3% |
| M Holierhoek | 7/10 | 5512 days | 3% |
| Berger | 9/10 | 5514 days | 3% |
| Ron Pantzer | 7/10 | 5519 days | 3% |
| Julian Seizinger | 9/10 | 5525 days | 3% |
| Olivia Carvill | 8/10 | 5526 days | 3% |
| Jarob Brezigar | 5/10 | 5531 days | 2% |
| Markus Richert | 6/10 | 5532 days | 2% |
| Christina Fischer | 5/10 | 5533 days | 2% |
| Bruce & Bonnie Childs | 9/10 | 5537 days | 3% |
| hendrik king | 9/10 | 5569 days | 3% |
| craigy | 6/10 | 5722 days | 2% |
| Monica Askew | 9/10 | 5792 days | 3% |
| Adam Gerrard | 8/10 | 5805 days | 3% |
| Sophie & Joffrey | 7/10 | 5809 days | 3% |
| steveE | 7/10 | 5814 days | 3% |
| Alan & Lorna | 8/10 | 5868 days | 3% |
| Mr and Mrs Scott | 5/10 | 5875 days | 2% |
| B Willmore | 10/10 | 5877 days | 3% |
| Pete H | 10/10 | 5884 days | 3% |
| Johan Wisselo | 7/10 | 5895 days | 3% |
| Tanja Titze | 10/10 | 5896 days | 3% |
| Groen | 8/10 | 5900 days | 3% |
| Kasper | 5/10 | 5901 days | 2% |
| Laura Walters | 8/10 | 5902 days | 3% |
| Ines Diana | 8/10 | 5902 days | 3% |
| uleugel | 8/10 | 5912 days | 3% |
| deanlaw | 9/10 | 5948 days | 3% |
| menzel | 8/10 | 5948 days | 3% |
| blokzyl | 7/10 | 5954 days | 3% |
| braunweiler | 9/10 | 5954 days | 3% |
| Marshall | 9/10 | 5967 days | 3% |
| Karin Linder | 9/10 | 5969 days | 3% |
| Lisette X | 7/10 | 5973 days | 3% |
| Louis Duhaime | 8/10 | 5976 days | 3% |
| paulandcathy | 8/10 | 6020 days | 3% |
| clairet | 7/10 | 6074 days | 3% |
| johannac | 7/10 | 6084 days | 3% |
| Miranda | 8/10 | 6087 days | 3% |
| Charles Lyne | 10/10 | 6179 days | 3% |
| Andrew Lonsdale | 5/10 | 6197 days | 2% |
| RubyJ | 8/10 | 6201 days | 3% |
| arthurwa | 10/10 | 6209 days | 3% |
| Peter Jackie | 7/10 | 6212 days | 3% |
| FiensG | 8/10 | 6228 days | 3% |
| Erik | 7/10 | 6231 days | 3% |
| Grimm | 9/10 | 6232 days | 3% |
| Marlena | 10/10 | 6232 days | 3% |
| Nick | 9/10 | 6237 days | 3% |
| RichardE | 9/10 | 6244 days | 3% |
| Sarah | 7/10 | 6245 days | 3% |
| Manfred | 9/10 | 6245 days | 3% |
| Majken | 5/10 | 6252 days | 2% |
| AurelieD | 7/10 | 6256 days | 3% |
| Nanno | 7/10 | 6259 days | 3% |
| MartinD | 7/10 | 6267 days | 3% |
| Danielle | 10/10 | 6273 days | 3% |
| Sonja | 8/10 | 6276 days | 3% |
| Maettu | 8/10 | 6299 days | 3% |
| Stephanie | 9/10 | 6309 days | 3% |
| Katherine | 7/10 | 6313 days | 3% |
| Claire | 7/10 | 6321 days | 3% |
| helen | 8/10 | 6321 days | 3% |
| Maggie | 9/10 | 6327 days | 3% |
| Patricia | 10/10 | 6330 days | 3% |
| Antonella | 9/10 | 6383 days | 3% |
| Gray | 5/10 | 6444 days | 2% |
| Thomas Bachmann | 8/10 | 6457 days | 3% |
| Leanne Priestley | 8/10 | 6580 days | 3% |
| Amy Clark | 7/10 | 6580 days | 3% |
| Toby | 9/10 | 6581 days | 3% |
| Vikki | 10/10 | 6585 days | 3% |
| Ovin | 9/10 | 6585 days | 3% |
| AlanN316 | 9/10 | 6590 days | 3% |
| Yayami Kimura | 9/10 | 6592 days | 3% |
| Demo | 6/10 | 6593 days | 2% |
| RhysP | 8/10 | 6594 days | 3% |
| Sarah Maudsley | 7/10 | 6595 days | 3% |
| Benjamin Krein | 8/10 | 6600 days | 3% |
| Tina Daly | 6/10 | 6601 days | 2% |
| Ohad | 9/10 | 6602 days | 3% |
| Kathy Hawey | 8/10 | 6608 days | 3% |
| David Buckley | 9/10 | 6609 days | 3% |
| Jackie Horwell | 10/10 | 6610 days | 3% |
| Carla | 7/10 | 6621 days | 3% |
| Hanna | 7/10 | 6622 days | 3% |
| Reina Lohaye | 7/10 | 6624 days | 3% |
| Line Oehlinschloger | 5/10 | 6648 days | 2% |
| Tim | 8/10 | 6649 days | 3% |
| Mette de Graap | 7/10 | 6651 days | 3% |
| Andrew Porter | 8/10 | 6657 days | 3% |
| Gerber Liselotte | 9/10 | 6683 days | 3% |
| Samuel Brejeon | 7/10 | 6694 days | 3% |
| Christin | 8/10 | 6699 days | 3% |
| Orla | 3/10 | 6699 days | 2% |
| Pat Brewster | 7/10 | 6811 days | 3% |
| Natalia | 8/10 | 6895 days | 3% |
| Miriam&Eva | 8/10 | 6899 days | 3% |
| Caroline | 8/10 | 6915 days | 3% |
| Klaus | 4/10 | 6916 days | 2% |
| Bonnie | 6/10 | 6919 days | 2% |
| Franklin | 7/10 | 6919 days | 3% |
| Stephanie | 8/10 | 6920 days | 3% |
| andrew julie | 7/10 | 6933 days | 3% |
| Nancy Bill | 7/10 | 6933 days | 3% |
| Daniel | 7/10 | 6935 days | 3% |
| clairekidd | 5/10 | 6938 days | 2% |
| Fred Highsmith | 8/10 | 6939 days | 3% |
| Hannah | 8/10 | 6949 days | 3% |
| Detlef | 5/10 | 6953 days | 2% |
| Delgroot | 8/10 | 6967 days | 3% |
| Herman&Ineke | 5/10 | 6978 days | 2% |
| Janne | 5/10 | 6979 days | 2% |
| Rolf | 9/10 | 6987 days | 3% |
| Nicole | 8/10 | 6987 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
-3.74% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 60 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 | -3.68% |
| 198 | -3.70% |
| 199 | -3.72% |
| 200 | -3.74% |
| 201 | -3.76% |
| 202 | -3.77% |
| 203 | -3.79% |
| … | … |
Balancing Adjustment
8.70% 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.