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 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
79.61%
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 | 3357 days | 97% |
| J P Schurer | 7/10 | 3357 days | 97% |
| Dries | 9/10 | 3397 days | 100% |
| Jasmine Rogers | 10/10 | 3410 days | 100% |
| Sophie | 10/10 | 3417 days | 99% |
| Nicholas Strozza | 8/10 | 3450 days | 92% |
| Jill Stebbing | 9/10 | 3673 days | 64% |
| Lothen | 8/10 | 3694 days | 61% |
| Lea Watterson | 9/10 | 3716 days | 59% |
| James Esele | 7/10 | 3770 days | 47% |
| Philipp | 2/10 | 3778 days | 9% |
| Coralie Ambrosino | 8/10 | 4036 days | 17% |
| Christoph | 10/10 | 4039 days | 17% |
| Fanny DeBon | 8/10 | 4137 days | 4% |
| Hubert | 10/10 | 4147 days | 3% |
| Sagi | 2/10 | 4418 days | 3% |
| Henrik Suefke | 10/10 | 4436 days | 40% |
| Kiernan Matthew | 7/10 | 4441 days | 35% |
| Alexis Redor | 9/10 | 4445 days | 39% |
| Lars Borgaa | 4/10 | 4454 days | 17% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4748 days | 17% |
| Glenn Surzur | 4/10 | 4775 days | 17% |
| Michael Walker | 10/10 | 4781 days | 40% |
| Lorraine Walker | 9/10 | 4781 days | 39% |
| Michael Nolan | 10/10 | 4807 days | 40% |
| Jim Woodruff | 10/10 | 4807 days | 40% |
| Lis Bon | 10/10 | 4838 days | 40% |
| Liam Day | 10/10 | 4855 days | 40% |
| Auger | 9/10 | 4876 days | 39% |
| Auger | 9/10 | 4876 days | 39% |
| C Schaap | 8/10 | 4880 days | 38% |
| Marjo Cousijn | 9/10 | 4886 days | 39% |
| gareth williams | 5/10 | 4930 days | 24% |
| Dagette | 8/10 | 4930 days | 38% |
| Wright | 10/10 | 5148 days | 40% |
| Emma Bagguley | 4/10 | 5151 days | 17% |
| Hazel & Alan Damerell | 10/10 | 5155 days | 40% |
| Michael & Rosemary Smith | 9/10 | 5159 days | 39% |
| Koster | 10/10 | 5159 days | 40% |
| John A Jerome | 6/10 | 5159 days | 30% |
| Katrawa | 5/10 | 5166 days | 24% |
| Jensen Bresbenbeek | 7/10 | 5236 days | 35% |
| Rebecca & Hugh Small | 5/10 | 5245 days | 24% |
| Steve | 3/10 | 5249 days | 9% |
| topsy08 | 7/10 | 5479 days | 35% |
| Gunter | 9/10 | 5493 days | 39% |
| Tim Laurent | 5/10 | 5501 days | 24% |
| Keith Ogley | 6/10 | 5504 days | 30% |
| Lynda Hutchins | 10/10 | 5504 days | 40% |
| Louise van der Hyden | 4/10 | 5508 days | 17% |
| Katie Mitchell | 9/10 | 5510 days | 39% |
| Gerhard | 8/10 | 5511 days | 38% |
| Kasten | 8/10 | 5512 days | 38% |
| C P Lawrence | 4/10 | 5514 days | 17% |
| Bucher Weruer | 9/10 | 5514 days | 39% |
| Naomi Kosteaman | 9/10 | 5514 days | 39% |
| Rian Bach | 5/10 | 5516 days | 24% |
| Josef & Christine Evers | 8/10 | 5519 days | 38% |
| Frank Schedler | 5/10 | 5521 days | 24% |
| Gerd Pagel | 7/10 | 5523 days | 35% |
| Charlie | 9/10 | 5524 days | 39% |
| Dana Pagliarini | 5/10 | 5526 days | 24% |
| Andy Martin | 8/10 | 5527 days | 38% |
| Julia | 5/10 | 5530 days | 24% |
| Doris Neuber | 7/10 | 5537 days | 35% |
| Teknik151 | 4/10 | 5538 days | 17% |
| Warris2500 | 4/10 | 5722 days | 17% |
| Versteeg | 7/10 | 5796 days | 35% |
| Victoria Slater | 6/10 | 5849 days | 30% |
| Bowness | 10/10 | 5862 days | 40% |
| David B | 9/10 | 5870 days | 39% |
| Sievers | 9/10 | 5878 days | 39% |
| Don & Alice | 9/10 | 5879 days | 39% |
| Amanda Iavarone | 10/10 | 5881 days | 40% |
| Sheila Morgan | 10/10 | 5884 days | 40% |
| Wilbert Germ | 9/10 | 5888 days | 39% |
| Ronny | 6/10 | 5889 days | 30% |
| Annette Schmitt | 4/10 | 5897 days | 17% |
| Annie | 7/10 | 5897 days | 35% |
| Nadine Schaee | 6/10 | 5900 days | 30% |
| Terry Phillips | 8/10 | 5900 days | 38% |
| Chance McGuire | 10/10 | 5903 days | 40% |
| Richard Pearson | 6/10 | 5913 days | 30% |
| cees juffermans | 3/10 | 5916 days | 9% |
| wenerz | 1/10 | 5950 days | 0% |
| Werner Zuis | 1/10 | 5950 days | 0% |
| alasiac | 10/10 | 5965 days | 40% |
| Mark Jenkins | 5/10 | 5973 days | 24% |
| Silvana Thom | 10/10 | 5975 days | 40% |
| Alexis De Wilde | 7/10 | 5975 days | 35% |
| Cyriel Schacken | 7/10 | 5975 days | 35% |
| Simon Bartholomew | 10/10 | 5977 days | 40% |
| Marcel Schleinkcfer | 10/10 | 5977 days | 40% |
| Thorben Thede | 9/10 | 5977 days | 39% |
| Roma | 9/10 | 5988 days | 39% |
| brianp | 8/10 | 6081 days | 38% |
| Rose and Jess Damon and Esler | 6/10 | 6118 days | 30% |
| OliverG1 | 9/10 | 6197 days | 39% |
| Anji Sprinks | 8/10 | 6206 days | 38% |
| Ger | 6/10 | 6207 days | 30% |
| JanW | 8/10 | 6221 days | 38% |
| Ian | 8/10 | 6232 days | 38% |
| Tatjane | 2/10 | 6240 days | 3% |
| ChristineM | 10/10 | 6242 days | 40% |
| SebastianGermany1 | 9/10 | 6244 days | 39% |
| Paul | 9/10 | 6252 days | 39% |
| SiegfriedL | 10/10 | 6264 days | 40% |
| purplekat99 | 9/10 | 6299 days | 39% |
| Klaus | 7/10 | 6600 days | 35% |
| Volders | 10/10 | 6602 days | 40% |
| Dot & Gordon Quaid | 9/10 | 6616 days | 39% |
| Roger & Margaret | 8/10 | 6623 days | 38% |
| John Howlett | 7/10 | 6625 days | 35% |
| Dupre | 7/10 | 6678 days | 35% |
| Paul Cowie | 9/10 | 6684 days | 39% |
| Floren | 9/10 | 6698 days | 39% |
| Killerblow | 10/10 | 6706 days | 40% |
| Lisbeth Johansson | 8/10 | 6811 days | 38% |
| TeamFlorida | 10/10 | 6946 days | 40% |
| John Beirne | 10/10 | 6963 days | 40% |
| Pete | 9/10 | 6963 days | 39% |
| Anne | 8/10 | 6963 days | 38% |
| Anna | 9/10 | 6968 days | 39% |
| Mitch | 8/10 | 6974 days | 38% |
| Ian | 9/10 | 6991 days | 39% |
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
-3.74% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 60 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 | -3.68% |
| 198 | -3.70% |
| 199 | -3.72% |
| 200 | -3.74% |
| 201 | -3.76% |
| 202 | -3.77% |
| 203 | -3.79% |
| … | … |
Balancing Adjustment
4.32% 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
80%
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.