Hi, 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
68.06%
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 | 473 days | 100% |
| Eric | 5/10 | 2914 days | 4% |
| Martin Fersebner | 7/10 | 2920 days | 5% |
| Alonso | 8/10 | 2976 days | 5% |
| Andres Gonzalez | 6/10 | 2994 days | 4% |
| Eveline | 8/10 | 3007 days | 5% |
| Anna Gruenewald | 5/10 | 3011 days | 4% |
| Camilla Geert | 6/10 | 3223 days | 3% |
| Sabrina Schneider | 8/10 | 3229 days | 4% |
| Laura Cosquer | 7/10 | 3231 days | 4% |
| Frenziska Schmid | 7/10 | 3244 days | 4% |
| Johanna Kuch | 7/10 | 3272 days | 3% |
| Carmen Pramstaller | 9/10 | 3274 days | 4% |
| Liza Braun | 8/10 | 3275 days | 4% |
| Markus Wabing | 8/10 | 3277 days | 4% |
| Uschi Pongratz | 8/10 | 3277 days | 4% |
| Nita Oussoren | 8/10 | 3277 days | 4% |
| Jessica Ruhland | 6/10 | 3277 days | 3% |
| David Soukal | 7/10 | 3278 days | 3% |
| Sabine Bergen | 7/10 | 3285 days | 3% |
| Sophie NIemann | 9/10 | 3290 days | 4% |
| Josephine | 7/10 | 3298 days | 3% |
| Pierre and Alexandra | 7/10 | 3330 days | 3% |
| Selma Krap | 9/10 | 3336 days | 3% |
| Blandine Giusti | 7/10 | 3598 days | 2% |
| Polly Rider | 8/10 | 3703 days | 2% |
| Greg Gilmore | 8/10 | 3936 days | 1% |
| Fiona Hawkins | 7/10 | 3936 days | 1% |
| Pavel Macek | 9/10 | 3945 days | 1% |
| Anna Sternberg | 5/10 | 3975 days | 1% |
| Roy Matthieu | 6/10 | 3985 days | 1% |
| Julie Ledanois | 7/10 | 3985 days | 1% |
| Pierre Gentile | 6/10 | 3985 days | 1% |
| Cindy Benayoum | 7/10 | 3985 days | 1% |
| Olivia | 8/10 | 3986 days | 1% |
| Callum | 7/10 | 3986 days | 1% |
| Sophia | 6/10 | 3991 days | 1% |
| Andreas Zapke | 8/10 | 4030 days | 1% |
| Simone Pickert | 7/10 | 4031 days | 1% |
| Cindy Bonton | 7/10 | 4041 days | 1% |
| Menu | 8/10 | 4329 days | 0% |
| Christian | 5/10 | 4332 days | 0% |
| Nora | 7/10 | 4332 days | 0% |
| Michael Nolan | 10/10 | 4339 days | 0% |
| Sebastian | 8/10 | 4343 days | 0% |
| Tobi | 9/10 | 4344 days | 0% |
| Chantal Mortel | 7/10 | 4344 days | 0% |
| Alessa Ndra | 10/10 | 4349 days | 0% |
| Fabian Brand | 5/10 | 4360 days | 0% |
| Kyle Guffei | 10/10 | 4362 days | 0% |
| Henrik Steinruecken | 8/10 | 4411 days | 2% |
| Doan | 6/10 | 4434 days | 1% |
| Judy | 10/10 | 4438 days | 2% |
| Petra | 7/10 | 4440 days | 2% |
| Selwindt | 9/10 | 4698 days | 2% |
| Mats Harstedt | 7/10 | 4713 days | 2% |
| Mark Bogton | 8/10 | 4713 days | 2% |
| R E Webb | 9/10 | 4716 days | 2% |
| Roland Hofmann | 7/10 | 4719 days | 2% |
| Lepied | 7/10 | 4720 days | 2% |
| Carla Mathieu | 10/10 | 4723 days | 2% |
| Graham Swinyard | 7/10 | 4727 days | 2% |
| Kurt Furuskar | 9/10 | 4744 days | 2% |
| _mel_ | 8/10 | 4764 days | 2% |
| Theresa | 9/10 | 4811 days | 2% |
| Frans van der Kroon | 8/10 | 4812 days | 2% |
| Elke & Charlotte | 8/10 | 4815 days | 2% |
| Gary A | 9/10 | 4825 days | 2% |
| katel86 | 5/10 | 4886 days | 1% |
| Dogoneit | 4/10 | 5039 days | 1% |
| Shoko Watanabe | 8/10 | 5039 days | 2% |
| Markus | 8/10 | 5042 days | 2% |
| Binder | 8/10 | 5054 days | 2% |
| Nicola Thackray | 7/10 | 5057 days | 2% |
| Katy Bourne | 8/10 | 5064 days | 2% |
| Michael Assfalg | 8/10 | 5069 days | 2% |
| Jon_and_Family | 9/10 | 5070 days | 2% |
| M Holierhoek | 7/10 | 5072 days | 2% |
| Berger | 9/10 | 5074 days | 2% |
| Ron Pantzer | 7/10 | 5079 days | 2% |
| Julian Seizinger | 9/10 | 5085 days | 2% |
| Olivia Carvill | 8/10 | 5086 days | 2% |
| Jarob Brezigar | 5/10 | 5091 days | 1% |
| Markus Richert | 6/10 | 5092 days | 1% |
| Christina Fischer | 5/10 | 5093 days | 1% |
| Bruce & Bonnie Childs | 9/10 | 5097 days | 2% |
| hendrik king | 9/10 | 5129 days | 2% |
| craigy | 6/10 | 5282 days | 1% |
| Monica Askew | 9/10 | 5352 days | 2% |
| Adam Gerrard | 8/10 | 5365 days | 2% |
| Sophie & Joffrey | 7/10 | 5369 days | 2% |
| steveE | 7/10 | 5374 days | 2% |
| Alan & Lorna | 8/10 | 5428 days | 2% |
| Mr and Mrs Scott | 5/10 | 5435 days | 1% |
| B Willmore | 10/10 | 5437 days | 2% |
| Pete H | 10/10 | 5444 days | 2% |
| Johan Wisselo | 7/10 | 5455 days | 2% |
| Tanja Titze | 10/10 | 5456 days | 2% |
| Groen | 8/10 | 5460 days | 2% |
| Kasper | 5/10 | 5461 days | 1% |
| Laura Walters | 8/10 | 5462 days | 2% |
| Ines Diana | 8/10 | 5462 days | 2% |
| uleugel | 8/10 | 5472 days | 2% |
| deanlaw | 9/10 | 5508 days | 2% |
| menzel | 8/10 | 5508 days | 2% |
| blokzyl | 7/10 | 5514 days | 2% |
| braunweiler | 9/10 | 5514 days | 2% |
| Marshall | 9/10 | 5527 days | 2% |
| Karin Linder | 9/10 | 5529 days | 2% |
| Lisette X | 7/10 | 5533 days | 2% |
| Louis Duhaime | 8/10 | 5536 days | 2% |
| paulandcathy | 8/10 | 5580 days | 2% |
| clairet | 7/10 | 5634 days | 2% |
| johannac | 7/10 | 5644 days | 2% |
| Miranda | 8/10 | 5647 days | 2% |
| Charles Lyne | 10/10 | 5739 days | 2% |
| Andrew Lonsdale | 5/10 | 5757 days | 1% |
| RubyJ | 8/10 | 5761 days | 2% |
| arthurwa | 10/10 | 5769 days | 2% |
| Peter Jackie | 7/10 | 5772 days | 2% |
| FiensG | 8/10 | 5788 days | 2% |
| Erik | 7/10 | 5791 days | 2% |
| Grimm | 9/10 | 5792 days | 2% |
| Marlena | 10/10 | 5792 days | 2% |
| Nick | 9/10 | 5798 days | 2% |
| RichardE | 9/10 | 5804 days | 2% |
| Sarah | 7/10 | 5805 days | 2% |
| Manfred | 9/10 | 5805 days | 2% |
| Majken | 5/10 | 5812 days | 1% |
| AurelieD | 7/10 | 5816 days | 2% |
| Nanno | 7/10 | 5819 days | 2% |
| MartinD | 7/10 | 5827 days | 2% |
| Danielle | 10/10 | 5833 days | 2% |
| Sonja | 8/10 | 5836 days | 2% |
| Maettu | 8/10 | 5859 days | 2% |
| Stephanie | 9/10 | 5869 days | 2% |
| Katherine | 7/10 | 5874 days | 2% |
| Claire | 7/10 | 5881 days | 2% |
| helen | 8/10 | 5881 days | 2% |
| Maggie | 9/10 | 5887 days | 2% |
| Patricia | 10/10 | 5890 days | 2% |
| Antonella | 9/10 | 5943 days | 2% |
| Gray | 5/10 | 6004 days | 1% |
| Thomas Bachmann | 8/10 | 6017 days | 2% |
| Leanne Priestley | 8/10 | 6140 days | 2% |
| Amy Clark | 7/10 | 6140 days | 2% |
| Toby | 9/10 | 6141 days | 2% |
| Vikki | 10/10 | 6145 days | 2% |
| Ovin | 9/10 | 6145 days | 2% |
| AlanN316 | 9/10 | 6150 days | 2% |
| Yayami Kimura | 9/10 | 6152 days | 2% |
| Demo | 6/10 | 6153 days | 1% |
| RhysP | 8/10 | 6154 days | 2% |
| Sarah Maudsley | 7/10 | 6155 days | 2% |
| Benjamin Krein | 8/10 | 6160 days | 2% |
| Tina Daly | 6/10 | 6161 days | 1% |
| Ohad | 9/10 | 6162 days | 2% |
| Kathy Hawey | 8/10 | 6168 days | 2% |
| David Buckley | 9/10 | 6169 days | 2% |
| Jackie Horwell | 10/10 | 6170 days | 2% |
| Carla | 7/10 | 6181 days | 2% |
| Hanna | 7/10 | 6182 days | 2% |
| Reina Lohaye | 7/10 | 6184 days | 2% |
| Line Oehlinschloger | 5/10 | 6208 days | 1% |
| Tim | 8/10 | 6209 days | 2% |
| Mette de Graap | 7/10 | 6211 days | 2% |
| Andrew Porter | 8/10 | 6217 days | 2% |
| Gerber Liselotte | 9/10 | 6243 days | 2% |
| Samuel Brejeon | 7/10 | 6254 days | 2% |
| Christin | 8/10 | 6259 days | 2% |
| Orla | 3/10 | 6259 days | 1% |
| Pat Brewster | 7/10 | 6371 days | 2% |
| Natalia | 8/10 | 6455 days | 2% |
| Miriam&Eva | 8/10 | 6459 days | 2% |
| Caroline | 8/10 | 6475 days | 2% |
| Klaus | 4/10 | 6476 days | 1% |
| Bonnie | 6/10 | 6479 days | 1% |
| Franklin | 7/10 | 6479 days | 2% |
| Stephanie | 8/10 | 6480 days | 2% |
| andrew julie | 7/10 | 6493 days | 2% |
| Nancy Bill | 7/10 | 6493 days | 2% |
| Daniel | 7/10 | 6495 days | 2% |
| clairekidd | 5/10 | 6498 days | 1% |
| Fred Highsmith | 8/10 | 6499 days | 2% |
| Hannah | 8/10 | 6509 days | 2% |
| Detlef | 5/10 | 6513 days | 1% |
| Delgroot | 8/10 | 6527 days | 2% |
| Herman&Ineke | 5/10 | 6538 days | 1% |
| Janne | 5/10 | 6539 days | 1% |
| Rolf | 9/10 | 6547 days | 2% |
| Nicole | 8/10 | 6547 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
-4.08% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 46 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 | -4.02% |
| 198 | -4.04% |
| 199 | -4.06% |
| 200 | -4.08% |
| 201 | -4.10% |
| 202 | -4.12% |
| 203 | -4.15% |
| … | … |
Balancing Adjustment
10.95% 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.