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.
![](data:image/svg+xml;utf8,<svg width="300" height="300" viewBox="0 0 300 300" xmlns="http://www.w3.org/2000/svg"><rect id="bg" width="300" height="300" fill="rgb(46,196,145)" /><path d="m 150 605 Q 206 94 -305 150 Q 206 206 150 -305 Q 94 206 605 150 Q 94 94 150 605 z" fill="rgb(70,136,0)" /><path d="m 150 515 Q 296 4 -215 150 Q 296 296 150 -215 Q 4 296 515 150 Q 4 4 150 515 z" fill="rgb(185,119,255)" /><path d="m 150 176 Q 165 135 124 150 Q 165 165 150 124 Q 135 165 176 150 Q 135 135 150 176 z" fill="rgb(209,59,110)" /></svg>)
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 | 2986 days | 97% |
| J P Schurer | 7/10 | 2986 days | 97% |
| Dries | 9/10 | 3026 days | 100% |
| Jasmine Rogers | 10/10 | 3039 days | 100% |
| Sophie | 10/10 | 3046 days | 99% |
| Nicholas Strozza | 8/10 | 3079 days | 95% |
| Jill Stebbing | 9/10 | 3302 days | 80% |
| Lothen | 8/10 | 3323 days | 77% |
| Lea Watterson | 9/10 | 3345 days | 76% |
| James Esele | 7/10 | 3399 days | 68% |
| Philipp | 2/10 | 3407 days | 33% |
| Coralie Ambrosino | 8/10 | 3665 days | 52% |
| Christoph | 10/10 | 3668 days | 53% |
| Fanny DeBon | 8/10 | 3766 days | 45% |
| Hubert | 10/10 | 3776 days | 45% |
| Sagi | 2/10 | 4047 days | 11% |
| Henrik Suefke | 10/10 | 4065 days | 23% |
| Kiernan Matthew | 7/10 | 4070 days | 21% |
| Alexis Redor | 9/10 | 4074 days | 22% |
| Lars Borgaa | 4/10 | 4083 days | 14% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4377 days | 0% |
| Glenn Surzur | 4/10 | 4404 days | 25% |
| Michael Walker | 10/10 | 4410 days | 38% |
| Lorraine Walker | 9/10 | 4410 days | 38% |
| Michael Nolan | 10/10 | 4436 days | 38% |
| Jim Woodruff | 10/10 | 4436 days | 38% |
| Lis Bon | 10/10 | 4467 days | 38% |
| Liam Day | 10/10 | 4484 days | 38% |
| Auger | 9/10 | 4505 days | 38% |
| Auger | 9/10 | 4505 days | 38% |
| C Schaap | 8/10 | 4509 days | 37% |
| Marjo Cousijn | 9/10 | 4515 days | 38% |
| gareth williams | 5/10 | 4559 days | 29% |
| Dagette | 8/10 | 4559 days | 37% |
| Wright | 10/10 | 4777 days | 38% |
| Emma Bagguley | 4/10 | 4780 days | 25% |
| Hazel & Alan Damerell | 10/10 | 4784 days | 38% |
| Michael & Rosemary Smith | 9/10 | 4788 days | 38% |
| Koster | 10/10 | 4788 days | 38% |
| John A Jerome | 6/10 | 4788 days | 33% |
| Katrawa | 5/10 | 4795 days | 29% |
| Jensen Bresbenbeek | 7/10 | 4865 days | 35% |
| Rebecca & Hugh Small | 5/10 | 4874 days | 29% |
| Steve | 3/10 | 4878 days | 21% |
| topsy08 | 7/10 | 5108 days | 35% |
| Gunter | 9/10 | 5122 days | 38% |
| Tim Laurent | 5/10 | 5130 days | 29% |
| Keith Ogley | 6/10 | 5133 days | 33% |
| Lynda Hutchins | 10/10 | 5133 days | 38% |
| Louise van der Hyden | 4/10 | 5137 days | 25% |
| Katie Mitchell | 9/10 | 5139 days | 38% |
| Gerhard | 8/10 | 5140 days | 37% |
| Kasten | 8/10 | 5141 days | 37% |
| C P Lawrence | 4/10 | 5143 days | 25% |
| Bucher Weruer | 9/10 | 5143 days | 38% |
| Naomi Kosteaman | 9/10 | 5143 days | 38% |
| Rian Bach | 5/10 | 5145 days | 29% |
| Josef & Christine Evers | 8/10 | 5148 days | 37% |
| Frank Schedler | 5/10 | 5150 days | 29% |
| Gerd Pagel | 7/10 | 5152 days | 35% |
| Charlie | 9/10 | 5153 days | 38% |
| Dana Pagliarini | 5/10 | 5155 days | 29% |
| Andy Martin | 8/10 | 5156 days | 37% |
| Julia | 5/10 | 5159 days | 29% |
| Doris Neuber | 7/10 | 5166 days | 35% |
| Teknik151 | 4/10 | 5167 days | 25% |
| Warris2500 | 4/10 | 5351 days | 25% |
| Versteeg | 7/10 | 5425 days | 35% |
| Victoria Slater | 6/10 | 5478 days | 33% |
| Bowness | 10/10 | 5491 days | 38% |
| David B | 9/10 | 5499 days | 38% |
| Sievers | 9/10 | 5507 days | 38% |
| Don & Alice | 9/10 | 5508 days | 38% |
| Amanda Iavarone | 10/10 | 5510 days | 38% |
| Sheila Morgan | 10/10 | 5513 days | 38% |
| Wilbert Germ | 9/10 | 5517 days | 38% |
| Ronny | 6/10 | 5518 days | 33% |
| Annette Schmitt | 4/10 | 5526 days | 25% |
| Annie | 7/10 | 5526 days | 35% |
| Nadine Schaee | 6/10 | 5529 days | 33% |
| Terry Phillips | 8/10 | 5529 days | 37% |
| Chance McGuire | 10/10 | 5532 days | 38% |
| Richard Pearson | 6/10 | 5542 days | 33% |
| cees juffermans | 3/10 | 5545 days | 21% |
| wenerz | 1/10 | 5579 days | 15% |
| Werner Zuis | 1/10 | 5579 days | 15% |
| alasiac | 10/10 | 5594 days | 38% |
| Mark Jenkins | 5/10 | 5602 days | 29% |
| Silvana Thom | 10/10 | 5604 days | 38% |
| Alexis De Wilde | 7/10 | 5604 days | 35% |
| Cyriel Schacken | 7/10 | 5604 days | 35% |
| Simon Bartholomew | 10/10 | 5606 days | 38% |
| Marcel Schleinkcfer | 10/10 | 5606 days | 38% |
| Thorben Thede | 9/10 | 5606 days | 38% |
| Roma | 9/10 | 5617 days | 38% |
| brianp | 8/10 | 5710 days | 37% |
| Rose and Jess Damon and Esler | 6/10 | 5747 days | 33% |
| OliverG1 | 9/10 | 5826 days | 38% |
| Anji Sprinks | 8/10 | 5835 days | 37% |
| Ger | 6/10 | 5836 days | 33% |
| JanW | 8/10 | 5850 days | 37% |
| Ian | 8/10 | 5861 days | 37% |
| Tatjane | 2/10 | 5869 days | 17% |
| ChristineM | 10/10 | 5871 days | 38% |
| SebastianGermany1 | 9/10 | 5873 days | 38% |
| Paul | 9/10 | 5881 days | 38% |
| SiegfriedL | 10/10 | 5893 days | 38% |
| purplekat99 | 9/10 | 5928 days | 38% |
| Klaus | 7/10 | 6229 days | 35% |
| Volders | 10/10 | 6231 days | 38% |
| Dot & Gordon Quaid | 9/10 | 6245 days | 38% |
| Roger & Margaret | 8/10 | 6252 days | 37% |
| John Howlett | 7/10 | 6254 days | 35% |
| Dupre | 7/10 | 6307 days | 35% |
| Paul Cowie | 9/10 | 6313 days | 38% |
| Floren | 9/10 | 6327 days | 38% |
| Killerblow | 10/10 | 6335 days | 38% |
| Lisbeth Johansson | 8/10 | 6440 days | 37% |
| TeamFlorida | 10/10 | 6575 days | 38% |
| John Beirne | 10/10 | 6592 days | 38% |
| Pete | 9/10 | 6592 days | 38% |
| Anne | 8/10 | 6592 days | 37% |
| Anna | 9/10 | 6597 days | 38% |
| Mitch | 8/10 | 6603 days | 37% |
| Ian | 9/10 | 6620 days | 38% |
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
-3.84% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 59 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 | -3.78% |
| 198 | -3.80% |
| 199 | -3.82% |
| 200 | -3.84% |
| 201 | -3.86% |
| 202 | -3.88% |
| 203 | -3.90% |
| … | … |
Balancing Adjustment
4.12% 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.