Hi, 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
79.91%
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 | 2919 days | 97% |
| J P Schurer | 7/10 | 2919 days | 97% |
| Dries | 9/10 | 2959 days | 100% |
| Jasmine Rogers | 10/10 | 2972 days | 100% |
| Sophie | 10/10 | 2979 days | 99% |
| Nicholas Strozza | 8/10 | 3012 days | 95% |
| Jill Stebbing | 9/10 | 3235 days | 80% |
| Lothen | 8/10 | 3256 days | 78% |
| Lea Watterson | 9/10 | 3278 days | 77% |
| James Esele | 7/10 | 3332 days | 69% |
| Philipp | 2/10 | 3340 days | 33% |
| Coralie Ambrosino | 8/10 | 3598 days | 54% |
| Christoph | 10/10 | 3601 days | 55% |
| Fanny DeBon | 8/10 | 3699 days | 47% |
| Hubert | 10/10 | 3709 days | 47% |
| Sagi | 2/10 | 3980 days | 12% |
| Henrik Suefke | 10/10 | 3998 days | 27% |
| Kiernan Matthew | 7/10 | 4003 days | 24% |
| Alexis Redor | 9/10 | 4007 days | 26% |
| Lars Borgaa | 4/10 | 4016 days | 16% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4310 days | 2% |
| Glenn Surzur | 4/10 | 4337 days | 1% |
| Michael Walker | 10/10 | 4343 days | 2% |
| Lorraine Walker | 9/10 | 4343 days | 2% |
| Michael Nolan | 10/10 | 4369 days | 0% |
| Jim Woodruff | 10/10 | 4369 days | 0% |
| Lis Bon | 10/10 | 4400 days | 36% |
| Liam Day | 10/10 | 4417 days | 36% |
| Auger | 9/10 | 4438 days | 35% |
| Auger | 9/10 | 4438 days | 35% |
| C Schaap | 8/10 | 4442 days | 35% |
| Marjo Cousijn | 9/10 | 4448 days | 35% |
| gareth williams | 5/10 | 4492 days | 27% |
| Dagette | 8/10 | 4492 days | 35% |
| Wright | 10/10 | 4710 days | 36% |
| Emma Bagguley | 4/10 | 4713 days | 23% |
| Hazel & Alan Damerell | 10/10 | 4717 days | 36% |
| Michael & Rosemary Smith | 9/10 | 4721 days | 35% |
| Koster | 10/10 | 4721 days | 36% |
| John A Jerome | 6/10 | 4721 days | 31% |
| Katrawa | 5/10 | 4728 days | 27% |
| Jensen Bresbenbeek | 7/10 | 4798 days | 33% |
| Rebecca & Hugh Small | 5/10 | 4807 days | 27% |
| Steve | 3/10 | 4811 days | 19% |
| topsy08 | 7/10 | 5041 days | 33% |
| Gunter | 9/10 | 5055 days | 35% |
| Tim Laurent | 5/10 | 5063 days | 27% |
| Keith Ogley | 6/10 | 5066 days | 31% |
| Lynda Hutchins | 10/10 | 5066 days | 36% |
| Louise van der Hyden | 4/10 | 5070 days | 23% |
| Katie Mitchell | 9/10 | 5072 days | 35% |
| Gerhard | 8/10 | 5073 days | 35% |
| Kasten | 8/10 | 5074 days | 35% |
| C P Lawrence | 4/10 | 5076 days | 23% |
| Bucher Weruer | 9/10 | 5076 days | 35% |
| Naomi Kosteaman | 9/10 | 5076 days | 35% |
| Rian Bach | 5/10 | 5078 days | 27% |
| Josef & Christine Evers | 8/10 | 5081 days | 35% |
| Frank Schedler | 5/10 | 5083 days | 27% |
| Gerd Pagel | 7/10 | 5085 days | 33% |
| Charlie | 9/10 | 5086 days | 35% |
| Dana Pagliarini | 5/10 | 5088 days | 27% |
| Andy Martin | 8/10 | 5089 days | 35% |
| Julia | 5/10 | 5092 days | 27% |
| Doris Neuber | 7/10 | 5099 days | 33% |
| Teknik151 | 4/10 | 5100 days | 23% |
| Warris2500 | 4/10 | 5284 days | 23% |
| Versteeg | 7/10 | 5358 days | 33% |
| Victoria Slater | 6/10 | 5411 days | 31% |
| Bowness | 10/10 | 5424 days | 36% |
| David B | 9/10 | 5432 days | 35% |
| Sievers | 9/10 | 5440 days | 35% |
| Don & Alice | 9/10 | 5441 days | 35% |
| Amanda Iavarone | 10/10 | 5443 days | 36% |
| Sheila Morgan | 10/10 | 5446 days | 36% |
| Wilbert Germ | 9/10 | 5450 days | 35% |
| Ronny | 6/10 | 5451 days | 31% |
| Annette Schmitt | 4/10 | 5459 days | 23% |
| Annie | 7/10 | 5459 days | 33% |
| Nadine Schaee | 6/10 | 5462 days | 31% |
| Terry Phillips | 8/10 | 5462 days | 35% |
| Chance McGuire | 10/10 | 5465 days | 36% |
| Richard Pearson | 6/10 | 5475 days | 31% |
| cees juffermans | 3/10 | 5478 days | 19% |
| wenerz | 1/10 | 5512 days | 14% |
| Werner Zuis | 1/10 | 5512 days | 14% |
| alasiac | 10/10 | 5527 days | 36% |
| Mark Jenkins | 5/10 | 5535 days | 27% |
| Silvana Thom | 10/10 | 5537 days | 36% |
| Alexis De Wilde | 7/10 | 5537 days | 33% |
| Cyriel Schacken | 7/10 | 5537 days | 33% |
| Simon Bartholomew | 10/10 | 5539 days | 36% |
| Marcel Schleinkcfer | 10/10 | 5539 days | 36% |
| Thorben Thede | 9/10 | 5539 days | 35% |
| Roma | 9/10 | 5550 days | 35% |
| brianp | 8/10 | 5643 days | 35% |
| Rose and Jess Damon and Esler | 6/10 | 5680 days | 31% |
| OliverG1 | 9/10 | 5759 days | 35% |
| Anji Sprinks | 8/10 | 5768 days | 35% |
| Ger | 6/10 | 5769 days | 31% |
| JanW | 8/10 | 5783 days | 35% |
| Ian | 8/10 | 5795 days | 35% |
| Tatjane | 2/10 | 5803 days | 16% |
| ChristineM | 10/10 | 5804 days | 36% |
| SebastianGermany1 | 9/10 | 5806 days | 35% |
| Paul | 9/10 | 5814 days | 35% |
| SiegfriedL | 10/10 | 5826 days | 36% |
| purplekat99 | 9/10 | 5861 days | 35% |
| Klaus | 7/10 | 6162 days | 33% |
| Volders | 10/10 | 6164 days | 36% |
| Dot & Gordon Quaid | 9/10 | 6178 days | 35% |
| Roger & Margaret | 8/10 | 6185 days | 35% |
| John Howlett | 7/10 | 6187 days | 33% |
| Dupre | 7/10 | 6240 days | 33% |
| Paul Cowie | 9/10 | 6246 days | 35% |
| Floren | 9/10 | 6260 days | 35% |
| Killerblow | 10/10 | 6269 days | 36% |
| Lisbeth Johansson | 8/10 | 6373 days | 35% |
| TeamFlorida | 10/10 | 6508 days | 36% |
| John Beirne | 10/10 | 6525 days | 36% |
| Pete | 9/10 | 6525 days | 35% |
| Anne | 8/10 | 6525 days | 35% |
| Anna | 9/10 | 6530 days | 35% |
| Mitch | 8/10 | 6536 days | 35% |
| Ian | 9/10 | 6553 days | 35% |
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
-4.09% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 46 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 | -4.03% |
| 198 | -4.05% |
| 199 | -4.07% |
| 200 | -4.09% |
| 201 | -4.11% |
| 202 | -4.13% |
| 203 | -4.15% |
| … | … |
Balancing Adjustment
4.34% 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.