Kia ora, 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
79.49%
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 | 3478 days | 98% |
| J P Schurer | 7/10 | 3478 days | 98% |
| Dries | 9/10 | 3518 days | 100% |
| Jasmine Rogers | 10/10 | 3531 days | 99% |
| Sophie | 10/10 | 3538 days | 98% |
| Nicholas Strozza | 8/10 | 3571 days | 92% |
| Jill Stebbing | 9/10 | 3794 days | 63% |
| Lothen | 8/10 | 3815 days | 60% |
| Lea Watterson | 9/10 | 3837 days | 57% |
| James Esele | 7/10 | 3891 days | 46% |
| Philipp | 2/10 | 3899 days | 14% |
| Coralie Ambrosino | 8/10 | 4157 days | 14% |
| Christoph | 10/10 | 4160 days | 15% |
| Fanny DeBon | 8/10 | 4258 days | 1% |
| Hubert | 10/10 | 4268 days | 0% |
| Sagi | 2/10 | 4539 days | 16% |
| Henrik Suefke | 10/10 | 4557 days | 54% |
| Kiernan Matthew | 7/10 | 4562 days | 49% |
| Alexis Redor | 9/10 | 4566 days | 53% |
| Lars Borgaa | 4/10 | 4575 days | 30% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4869 days | 30% |
| Glenn Surzur | 4/10 | 4896 days | 30% |
| Michael Walker | 10/10 | 4902 days | 54% |
| Lorraine Walker | 9/10 | 4902 days | 53% |
| Michael Nolan | 10/10 | 4928 days | 54% |
| Jim Woodruff | 10/10 | 4928 days | 54% |
| Lis Bon | 10/10 | 4959 days | 54% |
| Liam Day | 10/10 | 4976 days | 54% |
| Auger | 9/10 | 4997 days | 53% |
| Auger | 9/10 | 4997 days | 53% |
| C Schaap | 8/10 | 5001 days | 52% |
| Marjo Cousijn | 9/10 | 5007 days | 53% |
| gareth williams | 5/10 | 5051 days | 37% |
| Dagette | 8/10 | 5051 days | 52% |
| Wright | 10/10 | 5269 days | 54% |
| Emma Bagguley | 4/10 | 5272 days | 30% |
| Hazel & Alan Damerell | 10/10 | 5276 days | 54% |
| Michael & Rosemary Smith | 9/10 | 5280 days | 53% |
| Koster | 10/10 | 5280 days | 54% |
| John A Jerome | 6/10 | 5280 days | 44% |
| Katrawa | 5/10 | 5287 days | 37% |
| Jensen Bresbenbeek | 7/10 | 5357 days | 49% |
| Rebecca & Hugh Small | 5/10 | 5366 days | 37% |
| Steve | 3/10 | 5370 days | 22% |
| topsy08 | 7/10 | 5600 days | 49% |
| Gunter | 9/10 | 5614 days | 53% |
| Tim Laurent | 5/10 | 5622 days | 37% |
| Keith Ogley | 6/10 | 5625 days | 44% |
| Lynda Hutchins | 10/10 | 5625 days | 54% |
| Louise van der Hyden | 4/10 | 5629 days | 30% |
| Katie Mitchell | 9/10 | 5631 days | 53% |
| Gerhard | 8/10 | 5632 days | 52% |
| Kasten | 8/10 | 5633 days | 52% |
| C P Lawrence | 4/10 | 5635 days | 30% |
| Bucher Weruer | 9/10 | 5635 days | 53% |
| Naomi Kosteaman | 9/10 | 5635 days | 53% |
| Rian Bach | 5/10 | 5637 days | 37% |
| Josef & Christine Evers | 8/10 | 5640 days | 52% |
| Frank Schedler | 5/10 | 5642 days | 37% |
| Gerd Pagel | 7/10 | 5644 days | 49% |
| Charlie | 9/10 | 5645 days | 53% |
| Dana Pagliarini | 5/10 | 5647 days | 37% |
| Andy Martin | 8/10 | 5648 days | 52% |
| Julia | 5/10 | 5651 days | 37% |
| Doris Neuber | 7/10 | 5658 days | 49% |
| Teknik151 | 4/10 | 5659 days | 30% |
| Warris2500 | 4/10 | 5843 days | 30% |
| Versteeg | 7/10 | 5917 days | 49% |
| Victoria Slater | 6/10 | 5970 days | 44% |
| Bowness | 10/10 | 5983 days | 54% |
| David B | 9/10 | 5991 days | 53% |
| Sievers | 9/10 | 5999 days | 53% |
| Don & Alice | 9/10 | 6000 days | 53% |
| Amanda Iavarone | 10/10 | 6002 days | 54% |
| Sheila Morgan | 10/10 | 6005 days | 54% |
| Wilbert Germ | 9/10 | 6009 days | 53% |
| Ronny | 6/10 | 6010 days | 44% |
| Annette Schmitt | 4/10 | 6018 days | 30% |
| Annie | 7/10 | 6018 days | 49% |
| Nadine Schaee | 6/10 | 6021 days | 44% |
| Terry Phillips | 8/10 | 6021 days | 52% |
| Chance McGuire | 10/10 | 6024 days | 54% |
| Richard Pearson | 6/10 | 6034 days | 44% |
| cees juffermans | 3/10 | 6037 days | 22% |
| wenerz | 1/10 | 6071 days | 13% |
| Werner Zuis | 1/10 | 6071 days | 13% |
| alasiac | 10/10 | 6086 days | 54% |
| Mark Jenkins | 5/10 | 6094 days | 37% |
| Silvana Thom | 10/10 | 6096 days | 54% |
| Alexis De Wilde | 7/10 | 6096 days | 49% |
| Cyriel Schacken | 7/10 | 6096 days | 49% |
| Simon Bartholomew | 10/10 | 6098 days | 54% |
| Marcel Schleinkcfer | 10/10 | 6098 days | 54% |
| Thorben Thede | 9/10 | 6098 days | 53% |
| Roma | 9/10 | 6109 days | 53% |
| brianp | 8/10 | 6202 days | 52% |
| Rose and Jess Damon and Esler | 6/10 | 6239 days | 44% |
| OliverG1 | 9/10 | 6318 days | 53% |
| Anji Sprinks | 8/10 | 6327 days | 52% |
| Ger | 6/10 | 6328 days | 44% |
| JanW | 8/10 | 6342 days | 52% |
| Ian | 8/10 | 6353 days | 52% |
| Tatjane | 2/10 | 6361 days | 16% |
| ChristineM | 10/10 | 6363 days | 54% |
| SebastianGermany1 | 9/10 | 6365 days | 53% |
| Paul | 9/10 | 6373 days | 53% |
| SiegfriedL | 10/10 | 6385 days | 54% |
| purplekat99 | 9/10 | 6420 days | 53% |
| Klaus | 7/10 | 6721 days | 49% |
| Volders | 10/10 | 6723 days | 54% |
| Dot & Gordon Quaid | 9/10 | 6737 days | 53% |
| Roger & Margaret | 8/10 | 6744 days | 52% |
| John Howlett | 7/10 | 6746 days | 49% |
| Dupre | 7/10 | 6799 days | 49% |
| Paul Cowie | 9/10 | 6805 days | 53% |
| Floren | 9/10 | 6819 days | 53% |
| Killerblow | 10/10 | 6827 days | 54% |
| Lisbeth Johansson | 8/10 | 6932 days | 52% |
| TeamFlorida | 10/10 | 7067 days | 54% |
| John Beirne | 10/10 | 7084 days | 54% |
| Pete | 9/10 | 7084 days | 53% |
| Anne | 8/10 | 7084 days | 52% |
| Anna | 9/10 | 7089 days | 53% |
| Mitch | 8/10 | 7095 days | 52% |
| Ian | 9/10 | 7112 days | 53% |
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
-2.09% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 123 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 | -2.06% |
| 198 | -2.07% |
| 199 | -2.08% |
| 200 | -2.09% |
| 201 | -2.10% |
| 202 | -2.12% |
| 203 | -2.13% |
| … | … |
Balancing Adjustment
3.79% 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.