Hey, 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
80.22%
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 | 2946 days | 97% |
| J P Schurer | 7/10 | 2946 days | 97% |
| Dries | 9/10 | 2986 days | 100% |
| Jasmine Rogers | 10/10 | 2999 days | 100% |
| Sophie | 10/10 | 3006 days | 99% |
| Nicholas Strozza | 8/10 | 3039 days | 95% |
| Jill Stebbing | 9/10 | 3262 days | 80% |
| Lothen | 8/10 | 3283 days | 78% |
| Lea Watterson | 9/10 | 3305 days | 77% |
| James Esele | 7/10 | 3359 days | 69% |
| Philipp | 2/10 | 3367 days | 33% |
| Coralie Ambrosino | 8/10 | 3625 days | 53% |
| Christoph | 10/10 | 3628 days | 54% |
| Fanny DeBon | 8/10 | 3726 days | 46% |
| Hubert | 10/10 | 3736 days | 46% |
| Sagi | 2/10 | 4007 days | 12% |
| Henrik Suefke | 10/10 | 4025 days | 25% |
| Kiernan Matthew | 7/10 | 4030 days | 23% |
| Alexis Redor | 9/10 | 4034 days | 24% |
| Lars Borgaa | 4/10 | 4043 days | 15% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4337 days | 1% |
| Glenn Surzur | 4/10 | 4364 days | 0% |
| Michael Walker | 10/10 | 4370 days | 0% |
| Lorraine Walker | 9/10 | 4370 days | 0% |
| Michael Nolan | 10/10 | 4396 days | 37% |
| Jim Woodruff | 10/10 | 4396 days | 37% |
| Lis Bon | 10/10 | 4427 days | 37% |
| Liam Day | 10/10 | 4444 days | 37% |
| Auger | 9/10 | 4465 days | 36% |
| Auger | 9/10 | 4465 days | 36% |
| C Schaap | 8/10 | 4469 days | 36% |
| Marjo Cousijn | 9/10 | 4475 days | 36% |
| gareth williams | 5/10 | 4519 days | 28% |
| Dagette | 8/10 | 4519 days | 36% |
| Wright | 10/10 | 4737 days | 37% |
| Emma Bagguley | 4/10 | 4740 days | 24% |
| Hazel & Alan Damerell | 10/10 | 4744 days | 37% |
| Michael & Rosemary Smith | 9/10 | 4748 days | 36% |
| Koster | 10/10 | 4748 days | 37% |
| John A Jerome | 6/10 | 4748 days | 31% |
| Katrawa | 5/10 | 4755 days | 28% |
| Jensen Bresbenbeek | 7/10 | 4825 days | 34% |
| Rebecca & Hugh Small | 5/10 | 4834 days | 28% |
| Steve | 3/10 | 4838 days | 20% |
| topsy08 | 7/10 | 5068 days | 34% |
| Gunter | 9/10 | 5082 days | 36% |
| Tim Laurent | 5/10 | 5090 days | 28% |
| Keith Ogley | 6/10 | 5093 days | 31% |
| Lynda Hutchins | 10/10 | 5093 days | 37% |
| Louise van der Hyden | 4/10 | 5097 days | 24% |
| Katie Mitchell | 9/10 | 5099 days | 36% |
| Gerhard | 8/10 | 5100 days | 36% |
| Kasten | 8/10 | 5101 days | 36% |
| C P Lawrence | 4/10 | 5103 days | 24% |
| Bucher Weruer | 9/10 | 5103 days | 36% |
| Naomi Kosteaman | 9/10 | 5103 days | 36% |
| Rian Bach | 5/10 | 5105 days | 28% |
| Josef & Christine Evers | 8/10 | 5108 days | 36% |
| Frank Schedler | 5/10 | 5110 days | 28% |
| Gerd Pagel | 7/10 | 5112 days | 34% |
| Charlie | 9/10 | 5113 days | 36% |
| Dana Pagliarini | 5/10 | 5115 days | 28% |
| Andy Martin | 8/10 | 5116 days | 36% |
| Julia | 5/10 | 5119 days | 28% |
| Doris Neuber | 7/10 | 5126 days | 34% |
| Teknik151 | 4/10 | 5127 days | 24% |
| Warris2500 | 4/10 | 5311 days | 24% |
| Versteeg | 7/10 | 5385 days | 34% |
| Victoria Slater | 6/10 | 5438 days | 31% |
| Bowness | 10/10 | 5451 days | 37% |
| David B | 9/10 | 5459 days | 36% |
| Sievers | 9/10 | 5467 days | 36% |
| Don & Alice | 9/10 | 5468 days | 36% |
| Amanda Iavarone | 10/10 | 5470 days | 37% |
| Sheila Morgan | 10/10 | 5473 days | 37% |
| Wilbert Germ | 9/10 | 5477 days | 36% |
| Ronny | 6/10 | 5478 days | 31% |
| Annette Schmitt | 4/10 | 5486 days | 24% |
| Annie | 7/10 | 5486 days | 34% |
| Nadine Schaee | 6/10 | 5489 days | 31% |
| Terry Phillips | 8/10 | 5489 days | 36% |
| Chance McGuire | 10/10 | 5492 days | 37% |
| Richard Pearson | 6/10 | 5502 days | 31% |
| cees juffermans | 3/10 | 5505 days | 20% |
| wenerz | 1/10 | 5539 days | 14% |
| Werner Zuis | 1/10 | 5539 days | 14% |
| alasiac | 10/10 | 5554 days | 37% |
| Mark Jenkins | 5/10 | 5562 days | 28% |
| Silvana Thom | 10/10 | 5564 days | 37% |
| Alexis De Wilde | 7/10 | 5564 days | 34% |
| Cyriel Schacken | 7/10 | 5564 days | 34% |
| Simon Bartholomew | 10/10 | 5566 days | 37% |
| Marcel Schleinkcfer | 10/10 | 5566 days | 37% |
| Thorben Thede | 9/10 | 5566 days | 36% |
| Roma | 9/10 | 5577 days | 36% |
| brianp | 8/10 | 5670 days | 36% |
| Rose and Jess Damon and Esler | 6/10 | 5707 days | 31% |
| OliverG1 | 9/10 | 5786 days | 36% |
| Anji Sprinks | 8/10 | 5795 days | 36% |
| Ger | 6/10 | 5796 days | 31% |
| JanW | 8/10 | 5810 days | 36% |
| Ian | 8/10 | 5821 days | 36% |
| Tatjane | 2/10 | 5829 days | 16% |
| ChristineM | 10/10 | 5831 days | 37% |
| SebastianGermany1 | 9/10 | 5833 days | 36% |
| Paul | 9/10 | 5841 days | 36% |
| SiegfriedL | 10/10 | 5853 days | 37% |
| purplekat99 | 9/10 | 5888 days | 36% |
| Klaus | 7/10 | 6189 days | 34% |
| Volders | 10/10 | 6191 days | 37% |
| Dot & Gordon Quaid | 9/10 | 6205 days | 36% |
| Roger & Margaret | 8/10 | 6212 days | 36% |
| John Howlett | 7/10 | 6214 days | 34% |
| Dupre | 7/10 | 6267 days | 34% |
| Paul Cowie | 9/10 | 6273 days | 36% |
| Floren | 9/10 | 6287 days | 36% |
| Killerblow | 10/10 | 6295 days | 37% |
| Lisbeth Johansson | 8/10 | 6400 days | 36% |
| TeamFlorida | 10/10 | 6535 days | 37% |
| John Beirne | 10/10 | 6552 days | 37% |
| Pete | 9/10 | 6552 days | 36% |
| Anne | 8/10 | 6552 days | 36% |
| Anna | 9/10 | 6557 days | 36% |
| Mitch | 8/10 | 6563 days | 36% |
| Ian | 9/10 | 6580 days | 36% |
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
-4.15% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 52 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 | -4.09% |
| 198 | -4.11% |
| 199 | -4.13% |
| 200 | -4.15% |
| 201 | -4.17% |
| 202 | -4.20% |
| 203 | -4.22% |
| … | … |
Balancing Adjustment
4.25% 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.