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
79.50%
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 | 3467 days | 98% |
| J P Schurer | 7/10 | 3467 days | 98% |
| Dries | 9/10 | 3507 days | 100% |
| Jasmine Rogers | 10/10 | 3520 days | 99% |
| Sophie | 10/10 | 3527 days | 98% |
| Nicholas Strozza | 8/10 | 3560 days | 92% |
| Jill Stebbing | 9/10 | 3783 days | 63% |
| Lothen | 8/10 | 3804 days | 60% |
| Lea Watterson | 9/10 | 3826 days | 57% |
| James Esele | 7/10 | 3880 days | 46% |
| Philipp | 2/10 | 3888 days | 14% |
| Coralie Ambrosino | 8/10 | 4146 days | 14% |
| Christoph | 10/10 | 4149 days | 15% |
| Fanny DeBon | 8/10 | 4247 days | 1% |
| Hubert | 10/10 | 4257 days | 0% |
| Sagi | 2/10 | 4528 days | 15% |
| Henrik Suefke | 10/10 | 4546 days | 52% |
| Kiernan Matthew | 7/10 | 4551 days | 48% |
| Alexis Redor | 9/10 | 4555 days | 52% |
| Lars Borgaa | 4/10 | 4564 days | 28% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4858 days | 28% |
| Glenn Surzur | 4/10 | 4885 days | 28% |
| Michael Walker | 10/10 | 4891 days | 52% |
| Lorraine Walker | 9/10 | 4891 days | 52% |
| Michael Nolan | 10/10 | 4917 days | 52% |
| Jim Woodruff | 10/10 | 4917 days | 52% |
| Lis Bon | 10/10 | 4948 days | 52% |
| Liam Day | 10/10 | 4965 days | 52% |
| Auger | 9/10 | 4986 days | 52% |
| Auger | 9/10 | 4986 days | 52% |
| C Schaap | 8/10 | 4990 days | 51% |
| Marjo Cousijn | 9/10 | 4996 days | 52% |
| gareth williams | 5/10 | 5040 days | 36% |
| Dagette | 8/10 | 5040 days | 51% |
| Wright | 10/10 | 5258 days | 52% |
| Emma Bagguley | 4/10 | 5261 days | 28% |
| Hazel & Alan Damerell | 10/10 | 5265 days | 52% |
| Michael & Rosemary Smith | 9/10 | 5269 days | 52% |
| Koster | 10/10 | 5269 days | 52% |
| John A Jerome | 6/10 | 5269 days | 43% |
| Katrawa | 5/10 | 5276 days | 36% |
| Jensen Bresbenbeek | 7/10 | 5346 days | 48% |
| Rebecca & Hugh Small | 5/10 | 5355 days | 36% |
| Steve | 3/10 | 5359 days | 21% |
| topsy08 | 7/10 | 5589 days | 48% |
| Gunter | 9/10 | 5603 days | 52% |
| Tim Laurent | 5/10 | 5611 days | 36% |
| Keith Ogley | 6/10 | 5614 days | 43% |
| Lynda Hutchins | 10/10 | 5614 days | 52% |
| Louise van der Hyden | 4/10 | 5618 days | 28% |
| Katie Mitchell | 9/10 | 5620 days | 52% |
| Gerhard | 8/10 | 5621 days | 51% |
| Kasten | 8/10 | 5622 days | 51% |
| C P Lawrence | 4/10 | 5624 days | 28% |
| Bucher Weruer | 9/10 | 5624 days | 52% |
| Naomi Kosteaman | 9/10 | 5624 days | 52% |
| Rian Bach | 5/10 | 5626 days | 36% |
| Josef & Christine Evers | 8/10 | 5629 days | 51% |
| Frank Schedler | 5/10 | 5631 days | 36% |
| Gerd Pagel | 7/10 | 5633 days | 48% |
| Charlie | 9/10 | 5634 days | 52% |
| Dana Pagliarini | 5/10 | 5636 days | 36% |
| Andy Martin | 8/10 | 5637 days | 51% |
| Julia | 5/10 | 5640 days | 36% |
| Doris Neuber | 7/10 | 5647 days | 48% |
| Teknik151 | 4/10 | 5648 days | 28% |
| Warris2500 | 4/10 | 5832 days | 28% |
| Versteeg | 7/10 | 5906 days | 48% |
| Victoria Slater | 6/10 | 5959 days | 43% |
| Bowness | 10/10 | 5972 days | 52% |
| David B | 9/10 | 5980 days | 52% |
| Sievers | 9/10 | 5988 days | 52% |
| Don & Alice | 9/10 | 5989 days | 52% |
| Amanda Iavarone | 10/10 | 5991 days | 52% |
| Sheila Morgan | 10/10 | 5994 days | 52% |
| Wilbert Germ | 9/10 | 5998 days | 52% |
| Ronny | 6/10 | 5999 days | 43% |
| Annette Schmitt | 4/10 | 6007 days | 28% |
| Annie | 7/10 | 6007 days | 48% |
| Nadine Schaee | 6/10 | 6010 days | 43% |
| Terry Phillips | 8/10 | 6010 days | 51% |
| Chance McGuire | 10/10 | 6013 days | 52% |
| Richard Pearson | 6/10 | 6023 days | 43% |
| cees juffermans | 3/10 | 6026 days | 21% |
| wenerz | 1/10 | 6060 days | 11% |
| Werner Zuis | 1/10 | 6060 days | 11% |
| alasiac | 10/10 | 6075 days | 52% |
| Mark Jenkins | 5/10 | 6083 days | 36% |
| Silvana Thom | 10/10 | 6085 days | 52% |
| Alexis De Wilde | 7/10 | 6085 days | 48% |
| Cyriel Schacken | 7/10 | 6085 days | 48% |
| Simon Bartholomew | 10/10 | 6087 days | 52% |
| Marcel Schleinkcfer | 10/10 | 6087 days | 52% |
| Thorben Thede | 9/10 | 6087 days | 52% |
| Roma | 9/10 | 6098 days | 52% |
| brianp | 8/10 | 6191 days | 51% |
| Rose and Jess Damon and Esler | 6/10 | 6228 days | 43% |
| OliverG1 | 9/10 | 6307 days | 52% |
| Anji Sprinks | 8/10 | 6316 days | 51% |
| Ger | 6/10 | 6317 days | 43% |
| JanW | 8/10 | 6331 days | 51% |
| Ian | 8/10 | 6343 days | 51% |
| Tatjane | 2/10 | 6351 days | 15% |
| ChristineM | 10/10 | 6352 days | 52% |
| SebastianGermany1 | 9/10 | 6354 days | 52% |
| Paul | 9/10 | 6363 days | 52% |
| SiegfriedL | 10/10 | 6374 days | 52% |
| purplekat99 | 9/10 | 6409 days | 52% |
| Klaus | 7/10 | 6710 days | 48% |
| Volders | 10/10 | 6712 days | 52% |
| Dot & Gordon Quaid | 9/10 | 6726 days | 52% |
| Roger & Margaret | 8/10 | 6733 days | 51% |
| John Howlett | 7/10 | 6735 days | 48% |
| Dupre | 7/10 | 6788 days | 48% |
| Paul Cowie | 9/10 | 6794 days | 52% |
| Floren | 9/10 | 6808 days | 52% |
| Killerblow | 10/10 | 6817 days | 52% |
| Lisbeth Johansson | 8/10 | 6921 days | 51% |
| TeamFlorida | 10/10 | 7056 days | 52% |
| John Beirne | 10/10 | 7073 days | 52% |
| Pete | 9/10 | 7073 days | 52% |
| Anne | 8/10 | 7073 days | 51% |
| Anna | 9/10 | 7078 days | 52% |
| Mitch | 8/10 | 7084 days | 51% |
| Ian | 9/10 | 7101 days | 52% |
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
-2.01% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 125 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 | -1.98% |
| 198 | -1.99% |
| 199 | -2.00% |
| 200 | -2.01% |
| 201 | -2.02% |
| 202 | -2.03% |
| 203 | -2.04% |
| … | … |
Balancing Adjustment
3.76% 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.