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.
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 | 3241 days | 97% |
| J P Schurer | 7/10 | 3241 days | 97% |
| Dries | 9/10 | 3281 days | 100% |
| Jasmine Rogers | 10/10 | 3294 days | 100% |
| Sophie | 10/10 | 3301 days | 99% |
| Nicholas Strozza | 8/10 | 3334 days | 94% |
| Jill Stebbing | 9/10 | 3557 days | 74% |
| Lothen | 8/10 | 3578 days | 72% |
| Lea Watterson | 9/10 | 3600 days | 70% |
| James Esele | 7/10 | 3654 days | 61% |
| Philipp | 2/10 | 3662 days | 28% |
| Coralie Ambrosino | 8/10 | 3920 days | 40% |
| Christoph | 10/10 | 3923 days | 40% |
| Fanny DeBon | 8/10 | 4021 days | 31% |
| Hubert | 10/10 | 4031 days | 30% |
| Sagi | 2/10 | 4302 days | 1% |
| Henrik Suefke | 10/10 | 4320 days | 3% |
| Kiernan Matthew | 7/10 | 4325 days | 2% |
| Alexis Redor | 9/10 | 4329 days | 2% |
| Lars Borgaa | 4/10 | 4338 days | 0% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4632 days | 29% |
| Glenn Surzur | 4/10 | 4659 days | 29% |
| Michael Walker | 10/10 | 4665 days | 46% |
| Lorraine Walker | 9/10 | 4665 days | 45% |
| Michael Nolan | 10/10 | 4691 days | 46% |
| Jim Woodruff | 10/10 | 4691 days | 46% |
| Lis Bon | 10/10 | 4722 days | 46% |
| Liam Day | 10/10 | 4739 days | 46% |
| Auger | 9/10 | 4760 days | 45% |
| Auger | 9/10 | 4760 days | 45% |
| C Schaap | 8/10 | 4764 days | 45% |
| Marjo Cousijn | 9/10 | 4770 days | 45% |
| gareth williams | 5/10 | 4814 days | 34% |
| Dagette | 8/10 | 4814 days | 45% |
| Wright | 10/10 | 5032 days | 46% |
| Emma Bagguley | 4/10 | 5035 days | 29% |
| Hazel & Alan Damerell | 10/10 | 5039 days | 46% |
| Michael & Rosemary Smith | 9/10 | 5043 days | 45% |
| Koster | 10/10 | 5043 days | 46% |
| John A Jerome | 6/10 | 5043 days | 39% |
| Katrawa | 5/10 | 5050 days | 34% |
| Jensen Bresbenbeek | 7/10 | 5120 days | 42% |
| Rebecca & Hugh Small | 5/10 | 5129 days | 34% |
| Steve | 3/10 | 5133 days | 24% |
| topsy08 | 7/10 | 5363 days | 42% |
| Gunter | 9/10 | 5377 days | 45% |
| Tim Laurent | 5/10 | 5385 days | 34% |
| Keith Ogley | 6/10 | 5388 days | 39% |
| Lynda Hutchins | 10/10 | 5388 days | 46% |
| Louise van der Hyden | 4/10 | 5392 days | 29% |
| Katie Mitchell | 9/10 | 5394 days | 45% |
| Gerhard | 8/10 | 5395 days | 45% |
| Kasten | 8/10 | 5396 days | 45% |
| C P Lawrence | 4/10 | 5398 days | 29% |
| Bucher Weruer | 9/10 | 5398 days | 45% |
| Naomi Kosteaman | 9/10 | 5398 days | 45% |
| Rian Bach | 5/10 | 5400 days | 34% |
| Josef & Christine Evers | 8/10 | 5403 days | 45% |
| Frank Schedler | 5/10 | 5405 days | 34% |
| Gerd Pagel | 7/10 | 5407 days | 42% |
| Charlie | 9/10 | 5408 days | 45% |
| Dana Pagliarini | 5/10 | 5410 days | 34% |
| Andy Martin | 8/10 | 5411 days | 45% |
| Julia | 5/10 | 5414 days | 34% |
| Doris Neuber | 7/10 | 5421 days | 42% |
| Teknik151 | 4/10 | 5422 days | 29% |
| Warris2500 | 4/10 | 5606 days | 29% |
| Versteeg | 7/10 | 5680 days | 42% |
| Victoria Slater | 6/10 | 5733 days | 39% |
| Bowness | 10/10 | 5746 days | 46% |
| David B | 9/10 | 5754 days | 45% |
| Sievers | 9/10 | 5762 days | 45% |
| Don & Alice | 9/10 | 5763 days | 45% |
| Amanda Iavarone | 10/10 | 5765 days | 46% |
| Sheila Morgan | 10/10 | 5768 days | 46% |
| Wilbert Germ | 9/10 | 5772 days | 45% |
| Ronny | 6/10 | 5773 days | 39% |
| Annette Schmitt | 4/10 | 5781 days | 29% |
| Annie | 7/10 | 5781 days | 42% |
| Nadine Schaee | 6/10 | 5784 days | 39% |
| Terry Phillips | 8/10 | 5784 days | 45% |
| Chance McGuire | 10/10 | 5787 days | 46% |
| Richard Pearson | 6/10 | 5797 days | 39% |
| cees juffermans | 3/10 | 5800 days | 24% |
| wenerz | 1/10 | 5834 days | 17% |
| Werner Zuis | 1/10 | 5834 days | 17% |
| alasiac | 10/10 | 5849 days | 46% |
| Mark Jenkins | 5/10 | 5857 days | 34% |
| Silvana Thom | 10/10 | 5859 days | 46% |
| Alexis De Wilde | 7/10 | 5859 days | 42% |
| Cyriel Schacken | 7/10 | 5859 days | 42% |
| Simon Bartholomew | 10/10 | 5861 days | 46% |
| Marcel Schleinkcfer | 10/10 | 5861 days | 46% |
| Thorben Thede | 9/10 | 5861 days | 45% |
| Roma | 9/10 | 5872 days | 45% |
| brianp | 8/10 | 5965 days | 45% |
| Rose and Jess Damon and Esler | 6/10 | 6002 days | 39% |
| OliverG1 | 9/10 | 6081 days | 45% |
| Anji Sprinks | 8/10 | 6090 days | 45% |
| Ger | 6/10 | 6091 days | 39% |
| JanW | 8/10 | 6105 days | 45% |
| Ian | 8/10 | 6116 days | 45% |
| Tatjane | 2/10 | 6124 days | 19% |
| ChristineM | 10/10 | 6126 days | 46% |
| SebastianGermany1 | 9/10 | 6128 days | 45% |
| Paul | 9/10 | 6136 days | 45% |
| SiegfriedL | 10/10 | 6148 days | 46% |
| purplekat99 | 9/10 | 6183 days | 45% |
| Klaus | 7/10 | 6484 days | 42% |
| Volders | 10/10 | 6486 days | 46% |
| Dot & Gordon Quaid | 9/10 | 6499 days | 45% |
| Roger & Margaret | 8/10 | 6507 days | 45% |
| John Howlett | 7/10 | 6509 days | 42% |
| Dupre | 7/10 | 6562 days | 42% |
| Paul Cowie | 9/10 | 6568 days | 45% |
| Floren | 9/10 | 6582 days | 45% |
| Killerblow | 10/10 | 6590 days | 46% |
| Lisbeth Johansson | 8/10 | 6695 days | 45% |
| TeamFlorida | 10/10 | 6830 days | 46% |
| John Beirne | 10/10 | 6847 days | 46% |
| Pete | 9/10 | 6847 days | 45% |
| Anne | 8/10 | 6847 days | 45% |
| Anna | 9/10 | 6852 days | 45% |
| Mitch | 8/10 | 6858 days | 45% |
| Ian | 9/10 | 6875 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.