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
79.96%
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 | 3240 days | 97% |
| J P Schurer | 7/10 | 3240 days | 97% |
| Dries | 9/10 | 3280 days | 100% |
| Jasmine Rogers | 10/10 | 3293 days | 100% |
| Sophie | 10/10 | 3300 days | 99% |
| Nicholas Strozza | 8/10 | 3333 days | 94% |
| Jill Stebbing | 9/10 | 3556 days | 74% |
| Lothen | 8/10 | 3577 days | 72% |
| Lea Watterson | 9/10 | 3599 days | 70% |
| James Esele | 7/10 | 3653 days | 61% |
| Philipp | 2/10 | 3661 days | 28% |
| Coralie Ambrosino | 8/10 | 3919 days | 40% |
| Christoph | 10/10 | 3922 days | 41% |
| Fanny DeBon | 8/10 | 4020 days | 31% |
| Hubert | 10/10 | 4030 days | 30% |
| Sagi | 2/10 | 4301 days | 1% |
| Henrik Suefke | 10/10 | 4319 days | 3% |
| Kiernan Matthew | 7/10 | 4324 days | 2% |
| Alexis Redor | 9/10 | 4328 days | 2% |
| Lars Borgaa | 4/10 | 4337 days | 0% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4631 days | 29% |
| Glenn Surzur | 4/10 | 4658 days | 29% |
| Michael Walker | 10/10 | 4664 days | 46% |
| Lorraine Walker | 9/10 | 4664 days | 45% |
| Michael Nolan | 10/10 | 4690 days | 46% |
| Jim Woodruff | 10/10 | 4690 days | 46% |
| Lis Bon | 10/10 | 4721 days | 46% |
| Liam Day | 10/10 | 4738 days | 46% |
| Auger | 9/10 | 4759 days | 45% |
| Auger | 9/10 | 4759 days | 45% |
| C Schaap | 8/10 | 4763 days | 45% |
| Marjo Cousijn | 9/10 | 4769 days | 45% |
| gareth williams | 5/10 | 4813 days | 34% |
| Dagette | 8/10 | 4813 days | 45% |
| Wright | 10/10 | 5031 days | 46% |
| Emma Bagguley | 4/10 | 5034 days | 29% |
| Hazel & Alan Damerell | 10/10 | 5038 days | 46% |
| Michael & Rosemary Smith | 9/10 | 5042 days | 45% |
| Koster | 10/10 | 5042 days | 46% |
| John A Jerome | 6/10 | 5042 days | 39% |
| Katrawa | 5/10 | 5049 days | 34% |
| Jensen Bresbenbeek | 7/10 | 5119 days | 42% |
| Rebecca & Hugh Small | 5/10 | 5128 days | 34% |
| Steve | 3/10 | 5132 days | 24% |
| topsy08 | 7/10 | 5362 days | 42% |
| Gunter | 9/10 | 5376 days | 45% |
| Tim Laurent | 5/10 | 5384 days | 34% |
| Keith Ogley | 6/10 | 5387 days | 39% |
| Lynda Hutchins | 10/10 | 5387 days | 46% |
| Louise van der Hyden | 4/10 | 5391 days | 29% |
| Katie Mitchell | 9/10 | 5393 days | 45% |
| Gerhard | 8/10 | 5394 days | 45% |
| Kasten | 8/10 | 5395 days | 45% |
| C P Lawrence | 4/10 | 5397 days | 29% |
| Bucher Weruer | 9/10 | 5397 days | 45% |
| Naomi Kosteaman | 9/10 | 5397 days | 45% |
| Rian Bach | 5/10 | 5399 days | 34% |
| Josef & Christine Evers | 8/10 | 5402 days | 45% |
| Frank Schedler | 5/10 | 5404 days | 34% |
| Gerd Pagel | 7/10 | 5406 days | 42% |
| Charlie | 9/10 | 5407 days | 45% |
| Dana Pagliarini | 5/10 | 5409 days | 34% |
| Andy Martin | 8/10 | 5410 days | 45% |
| Julia | 5/10 | 5413 days | 34% |
| Doris Neuber | 7/10 | 5420 days | 42% |
| Teknik151 | 4/10 | 5421 days | 29% |
| Warris2500 | 4/10 | 5605 days | 29% |
| Versteeg | 7/10 | 5679 days | 42% |
| Victoria Slater | 6/10 | 5732 days | 39% |
| Bowness | 10/10 | 5745 days | 46% |
| David B | 9/10 | 5753 days | 45% |
| Sievers | 9/10 | 5761 days | 45% |
| Don & Alice | 9/10 | 5762 days | 45% |
| Amanda Iavarone | 10/10 | 5764 days | 46% |
| Sheila Morgan | 10/10 | 5767 days | 46% |
| Wilbert Germ | 9/10 | 5771 days | 45% |
| Ronny | 6/10 | 5772 days | 39% |
| Annette Schmitt | 4/10 | 5780 days | 29% |
| Annie | 7/10 | 5780 days | 42% |
| Nadine Schaee | 6/10 | 5783 days | 39% |
| Terry Phillips | 8/10 | 5783 days | 45% |
| Chance McGuire | 10/10 | 5786 days | 46% |
| Richard Pearson | 6/10 | 5796 days | 39% |
| cees juffermans | 3/10 | 5799 days | 24% |
| wenerz | 1/10 | 5833 days | 17% |
| Werner Zuis | 1/10 | 5833 days | 17% |
| alasiac | 10/10 | 5848 days | 46% |
| Mark Jenkins | 5/10 | 5856 days | 34% |
| Silvana Thom | 10/10 | 5858 days | 46% |
| Alexis De Wilde | 7/10 | 5858 days | 42% |
| Cyriel Schacken | 7/10 | 5858 days | 42% |
| Simon Bartholomew | 10/10 | 5860 days | 46% |
| Marcel Schleinkcfer | 10/10 | 5860 days | 46% |
| Thorben Thede | 9/10 | 5860 days | 45% |
| Roma | 9/10 | 5871 days | 45% |
| brianp | 8/10 | 5964 days | 45% |
| Rose and Jess Damon and Esler | 6/10 | 6001 days | 39% |
| OliverG1 | 9/10 | 6080 days | 45% |
| Anji Sprinks | 8/10 | 6089 days | 45% |
| Ger | 6/10 | 6090 days | 39% |
| JanW | 8/10 | 6104 days | 45% |
| Ian | 8/10 | 6116 days | 45% |
| Tatjane | 2/10 | 6124 days | 19% |
| ChristineM | 10/10 | 6125 days | 46% |
| SebastianGermany1 | 9/10 | 6127 days | 45% |
| Paul | 9/10 | 6136 days | 45% |
| SiegfriedL | 10/10 | 6147 days | 46% |
| purplekat99 | 9/10 | 6182 days | 45% |
| Klaus | 7/10 | 6483 days | 42% |
| Volders | 10/10 | 6485 days | 46% |
| Dot & Gordon Quaid | 9/10 | 6499 days | 45% |
| Roger & Margaret | 8/10 | 6506 days | 45% |
| John Howlett | 7/10 | 6508 days | 42% |
| Dupre | 7/10 | 6561 days | 42% |
| Paul Cowie | 9/10 | 6567 days | 45% |
| Floren | 9/10 | 6581 days | 45% |
| Killerblow | 10/10 | 6590 days | 46% |
| Lisbeth Johansson | 8/10 | 6694 days | 45% |
| TeamFlorida | 10/10 | 6829 days | 46% |
| John Beirne | 10/10 | 6846 days | 46% |
| Pete | 9/10 | 6846 days | 45% |
| Anne | 8/10 | 6846 days | 45% |
| Anna | 9/10 | 6851 days | 45% |
| Mitch | 8/10 | 6857 days | 45% |
| Ian | 9/10 | 6874 days | 45% |
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
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
4.31% 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.