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
80.25%
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 | 2972 days | 97% |
| J P Schurer | 7/10 | 2972 days | 97% |
| Dries | 9/10 | 3012 days | 100% |
| Jasmine Rogers | 10/10 | 3025 days | 100% |
| Sophie | 10/10 | 3032 days | 99% |
| Nicholas Strozza | 8/10 | 3065 days | 95% |
| Jill Stebbing | 9/10 | 3288 days | 80% |
| Lothen | 8/10 | 3309 days | 77% |
| Lea Watterson | 9/10 | 3331 days | 76% |
| James Esele | 7/10 | 3385 days | 68% |
| Philipp | 2/10 | 3393 days | 33% |
| Coralie Ambrosino | 8/10 | 3651 days | 52% |
| Christoph | 10/10 | 3654 days | 53% |
| Fanny DeBon | 8/10 | 3752 days | 45% |
| Hubert | 10/10 | 3762 days | 45% |
| Sagi | 2/10 | 4033 days | 11% |
| Henrik Suefke | 10/10 | 4051 days | 24% |
| Kiernan Matthew | 7/10 | 4056 days | 22% |
| Alexis Redor | 9/10 | 4060 days | 23% |
| Lars Borgaa | 4/10 | 4069 days | 14% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4363 days | 0% |
| Glenn Surzur | 4/10 | 4390 days | 24% |
| Michael Walker | 10/10 | 4396 days | 37% |
| Lorraine Walker | 9/10 | 4396 days | 37% |
| Michael Nolan | 10/10 | 4422 days | 37% |
| Jim Woodruff | 10/10 | 4422 days | 37% |
| Lis Bon | 10/10 | 4453 days | 37% |
| Liam Day | 10/10 | 4470 days | 37% |
| Auger | 9/10 | 4491 days | 37% |
| Auger | 9/10 | 4491 days | 37% |
| C Schaap | 8/10 | 4495 days | 36% |
| Marjo Cousijn | 9/10 | 4501 days | 37% |
| gareth williams | 5/10 | 4545 days | 28% |
| Dagette | 8/10 | 4545 days | 36% |
| Wright | 10/10 | 4763 days | 37% |
| Emma Bagguley | 4/10 | 4766 days | 24% |
| Hazel & Alan Damerell | 10/10 | 4770 days | 37% |
| Michael & Rosemary Smith | 9/10 | 4774 days | 37% |
| Koster | 10/10 | 4774 days | 37% |
| John A Jerome | 6/10 | 4774 days | 32% |
| Katrawa | 5/10 | 4781 days | 28% |
| Jensen Bresbenbeek | 7/10 | 4851 days | 35% |
| Rebecca & Hugh Small | 5/10 | 4860 days | 28% |
| Steve | 3/10 | 4864 days | 20% |
| topsy08 | 7/10 | 5094 days | 35% |
| Gunter | 9/10 | 5108 days | 37% |
| Tim Laurent | 5/10 | 5116 days | 28% |
| Keith Ogley | 6/10 | 5119 days | 32% |
| Lynda Hutchins | 10/10 | 5119 days | 37% |
| Louise van der Hyden | 4/10 | 5123 days | 24% |
| Katie Mitchell | 9/10 | 5125 days | 37% |
| Gerhard | 8/10 | 5126 days | 36% |
| Kasten | 8/10 | 5127 days | 36% |
| C P Lawrence | 4/10 | 5129 days | 24% |
| Bucher Weruer | 9/10 | 5129 days | 37% |
| Naomi Kosteaman | 9/10 | 5129 days | 37% |
| Rian Bach | 5/10 | 5131 days | 28% |
| Josef & Christine Evers | 8/10 | 5134 days | 36% |
| Frank Schedler | 5/10 | 5136 days | 28% |
| Gerd Pagel | 7/10 | 5138 days | 35% |
| Charlie | 9/10 | 5139 days | 37% |
| Dana Pagliarini | 5/10 | 5141 days | 28% |
| Andy Martin | 8/10 | 5142 days | 36% |
| Julia | 5/10 | 5145 days | 28% |
| Doris Neuber | 7/10 | 5152 days | 35% |
| Teknik151 | 4/10 | 5153 days | 24% |
| Warris2500 | 4/10 | 5337 days | 24% |
| Versteeg | 7/10 | 5411 days | 35% |
| Victoria Slater | 6/10 | 5464 days | 32% |
| Bowness | 10/10 | 5477 days | 37% |
| David B | 9/10 | 5485 days | 37% |
| Sievers | 9/10 | 5493 days | 37% |
| Don & Alice | 9/10 | 5494 days | 37% |
| Amanda Iavarone | 10/10 | 5496 days | 37% |
| Sheila Morgan | 10/10 | 5499 days | 37% |
| Wilbert Germ | 9/10 | 5503 days | 37% |
| Ronny | 6/10 | 5504 days | 32% |
| Annette Schmitt | 4/10 | 5512 days | 24% |
| Annie | 7/10 | 5512 days | 35% |
| Nadine Schaee | 6/10 | 5515 days | 32% |
| Terry Phillips | 8/10 | 5515 days | 36% |
| Chance McGuire | 10/10 | 5518 days | 37% |
| Richard Pearson | 6/10 | 5528 days | 32% |
| cees juffermans | 3/10 | 5531 days | 20% |
| wenerz | 1/10 | 5565 days | 15% |
| Werner Zuis | 1/10 | 5565 days | 15% |
| alasiac | 10/10 | 5580 days | 37% |
| Mark Jenkins | 5/10 | 5588 days | 28% |
| Silvana Thom | 10/10 | 5590 days | 37% |
| Alexis De Wilde | 7/10 | 5590 days | 35% |
| Cyriel Schacken | 7/10 | 5590 days | 35% |
| Simon Bartholomew | 10/10 | 5592 days | 37% |
| Marcel Schleinkcfer | 10/10 | 5592 days | 37% |
| Thorben Thede | 9/10 | 5592 days | 37% |
| Roma | 9/10 | 5603 days | 37% |
| brianp | 8/10 | 5696 days | 36% |
| Rose and Jess Damon and Esler | 6/10 | 5733 days | 32% |
| OliverG1 | 9/10 | 5812 days | 37% |
| Anji Sprinks | 8/10 | 5821 days | 36% |
| Ger | 6/10 | 5822 days | 32% |
| JanW | 8/10 | 5836 days | 36% |
| Ian | 8/10 | 5848 days | 36% |
| Tatjane | 2/10 | 5856 days | 16% |
| ChristineM | 10/10 | 5857 days | 37% |
| SebastianGermany1 | 9/10 | 5859 days | 37% |
| Paul | 9/10 | 5868 days | 37% |
| SiegfriedL | 10/10 | 5879 days | 37% |
| purplekat99 | 9/10 | 5914 days | 37% |
| Klaus | 7/10 | 6215 days | 35% |
| Volders | 10/10 | 6217 days | 37% |
| Dot & Gordon Quaid | 9/10 | 6231 days | 37% |
| Roger & Margaret | 8/10 | 6238 days | 36% |
| John Howlett | 7/10 | 6240 days | 35% |
| Dupre | 7/10 | 6293 days | 35% |
| Paul Cowie | 9/10 | 6299 days | 37% |
| Floren | 9/10 | 6313 days | 37% |
| Killerblow | 10/10 | 6322 days | 37% |
| Lisbeth Johansson | 8/10 | 6426 days | 36% |
| TeamFlorida | 10/10 | 6561 days | 37% |
| John Beirne | 10/10 | 6578 days | 37% |
| Pete | 9/10 | 6578 days | 37% |
| Anne | 8/10 | 6578 days | 36% |
| Anna | 9/10 | 6583 days | 37% |
| Mitch | 8/10 | 6589 days | 36% |
| Ian | 9/10 | 6606 days | 37% |
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
-4.02% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 | -3.96% |
| 198 | -3.98% |
| 199 | -4.00% |
| 200 | -4.02% |
| 201 | -4.04% |
| 202 | -4.06% |
| 203 | -4.08% |
| … | … |
Balancing Adjustment
4.19% 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.