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 Oamaru Blue Penguin Colony.
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.
Oamaru Blue Penguin Colony
Valid Reviews
125 Valid Reviews
The Oamaru Blue Penguin Colony experience has a total of 126 reviews. There are 125 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 125 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 28 |
|
22% |
| 9/10 | 30 |
|
24% |
| 8/10 | 19 |
|
15% |
| 7/10 | 15 |
|
12% |
| 6/10 | 8 |
|
6% |
| 5/10 | 9 |
|
7% |
| 4/10 | 9 |
|
7% |
| 3/10 | 2 |
|
2% |
| 2/10 | 3 |
|
2% |
| 1/10 | 2 |
|
2% |
76.00% Average
The raw data average (mean) for all the Oamaru Blue Penguin Colony valid reviews is 76.00% and is based on 125 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
109 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 125 valid reviews, the experience has 109 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 109 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 23 |
|
21% |
| 9/10 | 27 |
|
25% |
| 8/10 | 17 |
|
16% |
| 7/10 | 14 |
|
13% |
| 6/10 | 7 |
|
6% |
| 5/10 | 8 |
|
7% |
| 4/10 | 6 |
|
6% |
| 3/10 | 2 |
|
2% |
| 2/10 | 3 |
|
3% |
| 1/10 | 2 |
|
2% |
75.87% Average
The raw data average (mean) for all the Oamaru Blue Penguin Colony face-to-face reviews is 75.87% and is based on 109 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
79.57%
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 |
|---|---|---|---|
| Dina Schurer | 7/10 | 3397 days | 97% |
| J P Schurer | 7/10 | 3397 days | 97% |
| Dries | 9/10 | 3437 days | 100% |
| Jasmine Rogers | 10/10 | 3450 days | 100% |
| Sophie | 10/10 | 3457 days | 99% |
| Nicholas Strozza | 8/10 | 3490 days | 92% |
| Jill Stebbing | 9/10 | 3713 days | 63% |
| Lothen | 8/10 | 3734 days | 59% |
| Lea Watterson | 9/10 | 3756 days | 57% |
| James Esele | 7/10 | 3810 days | 46% |
| Philipp | 2/10 | 3818 days | 9% |
| Coralie Ambrosino | 8/10 | 4076 days | 14% |
| Christoph | 10/10 | 4079 days | 15% |
| Fanny DeBon | 8/10 | 4177 days | 1% |
| Hubert | 10/10 | 4187 days | 0% |
| Sagi | 2/10 | 4458 days | 5% |
| Henrik Suefke | 10/10 | 4476 days | 43% |
| Kiernan Matthew | 7/10 | 4481 days | 38% |
| Alexis Redor | 9/10 | 4485 days | 42% |
| Lars Borgaa | 4/10 | 4494 days | 19% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4788 days | 19% |
| Glenn Surzur | 4/10 | 4815 days | 19% |
| Michael Walker | 10/10 | 4821 days | 43% |
| Lorraine Walker | 9/10 | 4821 days | 42% |
| Michael Nolan | 10/10 | 4847 days | 43% |
| Jim Woodruff | 10/10 | 4847 days | 43% |
| Lis Bon | 10/10 | 4878 days | 43% |
| Liam Day | 10/10 | 4895 days | 43% |
| Auger | 9/10 | 4916 days | 42% |
| Auger | 9/10 | 4916 days | 42% |
| C Schaap | 8/10 | 4920 days | 42% |
| Marjo Cousijn | 9/10 | 4926 days | 42% |
| gareth williams | 5/10 | 4970 days | 27% |
| Dagette | 8/10 | 4970 days | 42% |
| Wright | 10/10 | 5188 days | 43% |
| Emma Bagguley | 4/10 | 5191 days | 19% |
| Hazel & Alan Damerell | 10/10 | 5195 days | 43% |
| Michael & Rosemary Smith | 9/10 | 5199 days | 42% |
| Koster | 10/10 | 5199 days | 43% |
| John A Jerome | 6/10 | 5199 days | 33% |
| Katrawa | 5/10 | 5206 days | 27% |
| Jensen Bresbenbeek | 7/10 | 5276 days | 38% |
| Rebecca & Hugh Small | 5/10 | 5285 days | 27% |
| Steve | 3/10 | 5289 days | 12% |
| topsy08 | 7/10 | 5519 days | 38% |
| Gunter | 9/10 | 5533 days | 42% |
| Tim Laurent | 5/10 | 5541 days | 27% |
| Keith Ogley | 6/10 | 5544 days | 33% |
| Lynda Hutchins | 10/10 | 5544 days | 43% |
| Louise van der Hyden | 4/10 | 5548 days | 19% |
| Katie Mitchell | 9/10 | 5550 days | 42% |
| Gerhard | 8/10 | 5551 days | 42% |
| Kasten | 8/10 | 5552 days | 42% |
| C P Lawrence | 4/10 | 5554 days | 19% |
| Bucher Weruer | 9/10 | 5554 days | 42% |
| Naomi Kosteaman | 9/10 | 5554 days | 42% |
| Rian Bach | 5/10 | 5556 days | 27% |
| Josef & Christine Evers | 8/10 | 5559 days | 42% |
| Frank Schedler | 5/10 | 5561 days | 27% |
| Gerd Pagel | 7/10 | 5563 days | 38% |
| Charlie | 9/10 | 5564 days | 42% |
| Dana Pagliarini | 5/10 | 5566 days | 27% |
| Andy Martin | 8/10 | 5567 days | 42% |
| Julia | 5/10 | 5570 days | 27% |
| Doris Neuber | 7/10 | 5577 days | 38% |
| Teknik151 | 4/10 | 5578 days | 19% |
| Warris2500 | 4/10 | 5762 days | 19% |
| Versteeg | 7/10 | 5836 days | 38% |
| Victoria Slater | 6/10 | 5889 days | 33% |
| Bowness | 10/10 | 5902 days | 43% |
| David B | 9/10 | 5910 days | 42% |
| Sievers | 9/10 | 5918 days | 42% |
| Don & Alice | 9/10 | 5919 days | 42% |
| Amanda Iavarone | 10/10 | 5921 days | 43% |
| Sheila Morgan | 10/10 | 5924 days | 43% |
| Wilbert Germ | 9/10 | 5928 days | 42% |
| Ronny | 6/10 | 5929 days | 33% |
| Annette Schmitt | 4/10 | 5937 days | 19% |
| Annie | 7/10 | 5937 days | 38% |
| Nadine Schaee | 6/10 | 5940 days | 33% |
| Terry Phillips | 8/10 | 5940 days | 42% |
| Chance McGuire | 10/10 | 5943 days | 43% |
| Richard Pearson | 6/10 | 5953 days | 33% |
| cees juffermans | 3/10 | 5956 days | 12% |
| wenerz | 1/10 | 5990 days | 2% |
| Werner Zuis | 1/10 | 5990 days | 2% |
| alasiac | 10/10 | 6005 days | 43% |
| Mark Jenkins | 5/10 | 6013 days | 27% |
| Silvana Thom | 10/10 | 6015 days | 43% |
| Alexis De Wilde | 7/10 | 6015 days | 38% |
| Cyriel Schacken | 7/10 | 6015 days | 38% |
| Simon Bartholomew | 10/10 | 6017 days | 43% |
| Marcel Schleinkcfer | 10/10 | 6017 days | 43% |
| Thorben Thede | 9/10 | 6017 days | 42% |
| Roma | 9/10 | 6028 days | 42% |
| brianp | 8/10 | 6121 days | 42% |
| Rose and Jess Damon and Esler | 6/10 | 6158 days | 33% |
| OliverG1 | 9/10 | 6237 days | 42% |
| Anji Sprinks | 8/10 | 6246 days | 42% |
| Ger | 6/10 | 6247 days | 33% |
| JanW | 8/10 | 6261 days | 42% |
| Ian | 8/10 | 6273 days | 42% |
| Tatjane | 2/10 | 6281 days | 5% |
| ChristineM | 10/10 | 6282 days | 43% |
| SebastianGermany1 | 9/10 | 6284 days | 42% |
| Paul | 9/10 | 6292 days | 42% |
| SiegfriedL | 10/10 | 6304 days | 43% |
| purplekat99 | 9/10 | 6339 days | 42% |
| Klaus | 7/10 | 6640 days | 38% |
| Volders | 10/10 | 6642 days | 43% |
| Dot & Gordon Quaid | 9/10 | 6656 days | 42% |
| Roger & Margaret | 8/10 | 6663 days | 42% |
| John Howlett | 7/10 | 6665 days | 38% |
| Dupre | 7/10 | 6718 days | 38% |
| Paul Cowie | 9/10 | 6724 days | 42% |
| Floren | 9/10 | 6738 days | 42% |
| Killerblow | 10/10 | 6747 days | 43% |
| Lisbeth Johansson | 8/10 | 6851 days | 42% |
| TeamFlorida | 10/10 | 6986 days | 43% |
| John Beirne | 10/10 | 7003 days | 43% |
| Pete | 9/10 | 7003 days | 42% |
| Anne | 8/10 | 7003 days | 42% |
| Anna | 9/10 | 7008 days | 42% |
| Mitch | 8/10 | 7014 days | 42% |
| Ian | 9/10 | 7031 days | 42% |
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 Oamaru Blue Penguin Colony experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.89% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 87 days. However the Oamaru Blue Penguin Colony 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 Oamaru Blue Penguin Colony experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.85% |
| 198 | -2.86% |
| 199 | -2.88% |
| 200 | -2.89% |
| 201 | -2.90% |
| 202 | -2.92% |
| 203 | -2.93% |
| … | … |
Balancing Adjustment
4.03% 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
81%
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.