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
70.11%
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 | 807 days | 100% |
| Eric | 5/10 | 3248 days | 4% |
| Martin Fersebner | 7/10 | 3254 days | 5% |
| Alonso | 8/10 | 3310 days | 5% |
| Andres Gonzalez | 6/10 | 3328 days | 4% |
| Eveline | 8/10 | 3341 days | 5% |
| Anna Gruenewald | 5/10 | 3345 days | 4% |
| Camilla Geert | 6/10 | 3557 days | 3% |
| Sabrina Schneider | 8/10 | 3563 days | 4% |
| Laura Cosquer | 7/10 | 3565 days | 4% |
| Frenziska Schmid | 7/10 | 3578 days | 4% |
| Johanna Kuch | 7/10 | 3606 days | 3% |
| Carmen Pramstaller | 9/10 | 3608 days | 4% |
| Liza Braun | 8/10 | 3609 days | 4% |
| Markus Wabing | 8/10 | 3611 days | 4% |
| Uschi Pongratz | 8/10 | 3611 days | 4% |
| Nita Oussoren | 8/10 | 3611 days | 4% |
| Jessica Ruhland | 6/10 | 3611 days | 3% |
| David Soukal | 7/10 | 3612 days | 3% |
| Sabine Bergen | 7/10 | 3619 days | 3% |
| Sophie NIemann | 9/10 | 3624 days | 4% |
| Josephine | 7/10 | 3632 days | 3% |
| Pierre and Alexandra | 7/10 | 3664 days | 3% |
| Selma Krap | 9/10 | 3670 days | 3% |
| Blandine Giusti | 7/10 | 3932 days | 2% |
| Polly Rider | 8/10 | 4037 days | 2% |
| Greg Gilmore | 8/10 | 4270 days | 0% |
| Fiona Hawkins | 7/10 | 4270 days | 0% |
| Pavel Macek | 9/10 | 4279 days | 0% |
| Anna Sternberg | 5/10 | 4309 days | 0% |
| Roy Matthieu | 6/10 | 4319 days | 0% |
| Julie Ledanois | 7/10 | 4319 days | 0% |
| Pierre Gentile | 6/10 | 4319 days | 0% |
| Cindy Benayoum | 7/10 | 4319 days | 0% |
| Olivia | 8/10 | 4320 days | 0% |
| Callum | 7/10 | 4320 days | 0% |
| Sophia | 6/10 | 4325 days | 0% |
| Andreas Zapke | 8/10 | 4364 days | 0% |
| Simone Pickert | 7/10 | 4365 days | 0% |
| Cindy Bonton | 7/10 | 4375 days | 0% |
| Menu | 8/10 | 4663 days | 2% |
| Christian | 5/10 | 4666 days | 2% |
| Nora | 7/10 | 4666 days | 2% |
| Michael Nolan | 10/10 | 4673 days | 2% |
| Sebastian | 8/10 | 4677 days | 2% |
| Tobi | 9/10 | 4678 days | 2% |
| Chantal Mortel | 7/10 | 4678 days | 2% |
| Alessa Ndra | 10/10 | 4683 days | 2% |
| Fabian Brand | 5/10 | 4694 days | 2% |
| Kyle Guffei | 10/10 | 4696 days | 2% |
| Henrik Steinruecken | 8/10 | 4745 days | 2% |
| Doan | 6/10 | 4768 days | 2% |
| Judy | 10/10 | 4772 days | 2% |
| Petra | 7/10 | 4774 days | 2% |
| Selwindt | 9/10 | 5032 days | 2% |
| Mats Harstedt | 7/10 | 5047 days | 2% |
| Mark Bogton | 8/10 | 5047 days | 2% |
| R E Webb | 9/10 | 5050 days | 2% |
| Roland Hofmann | 7/10 | 5053 days | 2% |
| Lepied | 7/10 | 5054 days | 2% |
| Carla Mathieu | 10/10 | 5057 days | 2% |
| Graham Swinyard | 7/10 | 5061 days | 2% |
| Kurt Furuskar | 9/10 | 5078 days | 2% |
| _mel_ | 8/10 | 5098 days | 2% |
| Theresa | 9/10 | 5145 days | 2% |
| Frans van der Kroon | 8/10 | 5146 days | 2% |
| Elke & Charlotte | 8/10 | 5149 days | 2% |
| Gary A | 9/10 | 5159 days | 2% |
| katel86 | 5/10 | 5220 days | 2% |
| Dogoneit | 4/10 | 5373 days | 2% |
| Shoko Watanabe | 8/10 | 5373 days | 2% |
| Markus | 8/10 | 5376 days | 2% |
| Binder | 8/10 | 5388 days | 2% |
| Nicola Thackray | 7/10 | 5391 days | 2% |
| Katy Bourne | 8/10 | 5398 days | 2% |
| Michael Assfalg | 8/10 | 5403 days | 2% |
| Jon_and_Family | 9/10 | 5404 days | 2% |
| M Holierhoek | 7/10 | 5406 days | 2% |
| Berger | 9/10 | 5408 days | 2% |
| Ron Pantzer | 7/10 | 5413 days | 2% |
| Julian Seizinger | 9/10 | 5419 days | 2% |
| Olivia Carvill | 8/10 | 5420 days | 2% |
| Jarob Brezigar | 5/10 | 5425 days | 2% |
| Markus Richert | 6/10 | 5426 days | 2% |
| Christina Fischer | 5/10 | 5427 days | 2% |
| Bruce & Bonnie Childs | 9/10 | 5431 days | 2% |
| hendrik king | 9/10 | 5463 days | 2% |
| craigy | 6/10 | 5616 days | 2% |
| Monica Askew | 9/10 | 5686 days | 2% |
| Adam Gerrard | 8/10 | 5699 days | 2% |
| Sophie & Joffrey | 7/10 | 5703 days | 2% |
| steveE | 7/10 | 5708 days | 2% |
| Alan & Lorna | 8/10 | 5762 days | 2% |
| Mr and Mrs Scott | 5/10 | 5769 days | 2% |
| B Willmore | 10/10 | 5771 days | 2% |
| Pete H | 10/10 | 5778 days | 2% |
| Johan Wisselo | 7/10 | 5789 days | 2% |
| Tanja Titze | 10/10 | 5790 days | 2% |
| Groen | 8/10 | 5794 days | 2% |
| Kasper | 5/10 | 5795 days | 2% |
| Laura Walters | 8/10 | 5796 days | 2% |
| Ines Diana | 8/10 | 5796 days | 2% |
| uleugel | 8/10 | 5806 days | 2% |
| deanlaw | 9/10 | 5842 days | 2% |
| menzel | 8/10 | 5842 days | 2% |
| blokzyl | 7/10 | 5848 days | 2% |
| braunweiler | 9/10 | 5848 days | 2% |
| Marshall | 9/10 | 5861 days | 2% |
| Karin Linder | 9/10 | 5863 days | 2% |
| Lisette X | 7/10 | 5867 days | 2% |
| Louis Duhaime | 8/10 | 5870 days | 2% |
| paulandcathy | 8/10 | 5914 days | 2% |
| clairet | 7/10 | 5968 days | 2% |
| johannac | 7/10 | 5978 days | 2% |
| Miranda | 8/10 | 5981 days | 2% |
| Charles Lyne | 10/10 | 6073 days | 2% |
| Andrew Lonsdale | 5/10 | 6091 days | 2% |
| RubyJ | 8/10 | 6095 days | 2% |
| arthurwa | 10/10 | 6103 days | 2% |
| Peter Jackie | 7/10 | 6106 days | 2% |
| FiensG | 8/10 | 6122 days | 2% |
| Erik | 7/10 | 6125 days | 2% |
| Grimm | 9/10 | 6126 days | 2% |
| Marlena | 10/10 | 6126 days | 2% |
| Nick | 9/10 | 6132 days | 2% |
| RichardE | 9/10 | 6138 days | 2% |
| Sarah | 7/10 | 6139 days | 2% |
| Manfred | 9/10 | 6139 days | 2% |
| Majken | 5/10 | 6146 days | 2% |
| AurelieD | 7/10 | 6150 days | 2% |
| Nanno | 7/10 | 6153 days | 2% |
| MartinD | 7/10 | 6161 days | 2% |
| Danielle | 10/10 | 6167 days | 2% |
| Sonja | 8/10 | 6170 days | 2% |
| Maettu | 8/10 | 6193 days | 2% |
| Stephanie | 9/10 | 6203 days | 2% |
| Katherine | 7/10 | 6208 days | 2% |
| Claire | 7/10 | 6215 days | 2% |
| helen | 8/10 | 6215 days | 2% |
| Maggie | 9/10 | 6221 days | 2% |
| Patricia | 10/10 | 6224 days | 2% |
| Antonella | 9/10 | 6277 days | 2% |
| Gray | 5/10 | 6338 days | 2% |
| Thomas Bachmann | 8/10 | 6351 days | 2% |
| Leanne Priestley | 8/10 | 6474 days | 2% |
| Amy Clark | 7/10 | 6474 days | 2% |
| Toby | 9/10 | 6475 days | 2% |
| Vikki | 10/10 | 6479 days | 2% |
| Ovin | 9/10 | 6479 days | 2% |
| AlanN316 | 9/10 | 6484 days | 2% |
| Yayami Kimura | 9/10 | 6486 days | 2% |
| Demo | 6/10 | 6487 days | 2% |
| RhysP | 8/10 | 6488 days | 2% |
| Sarah Maudsley | 7/10 | 6489 days | 2% |
| Benjamin Krein | 8/10 | 6494 days | 2% |
| Tina Daly | 6/10 | 6495 days | 2% |
| Ohad | 9/10 | 6496 days | 2% |
| Kathy Hawey | 8/10 | 6502 days | 2% |
| David Buckley | 9/10 | 6503 days | 2% |
| Jackie Horwell | 10/10 | 6504 days | 2% |
| Carla | 7/10 | 6515 days | 2% |
| Hanna | 7/10 | 6516 days | 2% |
| Reina Lohaye | 7/10 | 6518 days | 2% |
| Line Oehlinschloger | 5/10 | 6542 days | 2% |
| Tim | 8/10 | 6543 days | 2% |
| Mette de Graap | 7/10 | 6545 days | 2% |
| Andrew Porter | 8/10 | 6551 days | 2% |
| Gerber Liselotte | 9/10 | 6577 days | 2% |
| Samuel Brejeon | 7/10 | 6588 days | 2% |
| Christin | 8/10 | 6593 days | 2% |
| Orla | 3/10 | 6593 days | 1% |
| Pat Brewster | 7/10 | 6705 days | 2% |
| Natalia | 8/10 | 6789 days | 2% |
| Miriam&Eva | 8/10 | 6793 days | 2% |
| Caroline | 8/10 | 6809 days | 2% |
| Klaus | 4/10 | 6810 days | 2% |
| Bonnie | 6/10 | 6813 days | 2% |
| Franklin | 7/10 | 6813 days | 2% |
| Stephanie | 8/10 | 6814 days | 2% |
| andrew julie | 7/10 | 6827 days | 2% |
| Nancy Bill | 7/10 | 6827 days | 2% |
| Daniel | 7/10 | 6829 days | 2% |
| clairekidd | 5/10 | 6832 days | 2% |
| Fred Highsmith | 8/10 | 6833 days | 2% |
| Hannah | 8/10 | 6843 days | 2% |
| Detlef | 5/10 | 6847 days | 2% |
| Delgroot | 8/10 | 6861 days | 2% |
| Herman&Ineke | 5/10 | 6872 days | 2% |
| Janne | 5/10 | 6873 days | 2% |
| Rolf | 9/10 | 6881 days | 2% |
| Nicole | 8/10 | 6881 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 42 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 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
Balancing Adjustment
9.48% 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.