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
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 | 3249 days | 97% |
| J P Schurer | 7/10 | 3249 days | 97% |
| Dries | 9/10 | 3289 days | 100% |
| Jasmine Rogers | 10/10 | 3302 days | 100% |
| Sophie | 10/10 | 3309 days | 99% |
| Nicholas Strozza | 8/10 | 3342 days | 94% |
| Jill Stebbing | 9/10 | 3565 days | 74% |
| Lothen | 8/10 | 3586 days | 71% |
| Lea Watterson | 9/10 | 3608 days | 70% |
| James Esele | 7/10 | 3662 days | 61% |
| Philipp | 2/10 | 3670 days | 28% |
| Coralie Ambrosino | 8/10 | 3928 days | 40% |
| Christoph | 10/10 | 3931 days | 40% |
| Fanny DeBon | 8/10 | 4029 days | 30% |
| Hubert | 10/10 | 4039 days | 30% |
| Sagi | 2/10 | 4310 days | 1% |
| Henrik Suefke | 10/10 | 4328 days | 3% |
| Kiernan Matthew | 7/10 | 4333 days | 2% |
| Alexis Redor | 9/10 | 4337 days | 2% |
| Lars Borgaa | 4/10 | 4346 days | 0% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4640 days | 29% |
| Glenn Surzur | 4/10 | 4667 days | 29% |
| Michael Walker | 10/10 | 4673 days | 46% |
| Lorraine Walker | 9/10 | 4673 days | 46% |
| Michael Nolan | 10/10 | 4699 days | 46% |
| Jim Woodruff | 10/10 | 4699 days | 46% |
| Lis Bon | 10/10 | 4730 days | 46% |
| Liam Day | 10/10 | 4747 days | 46% |
| Auger | 9/10 | 4768 days | 46% |
| Auger | 9/10 | 4768 days | 46% |
| C Schaap | 8/10 | 4772 days | 45% |
| Marjo Cousijn | 9/10 | 4778 days | 46% |
| gareth williams | 5/10 | 4822 days | 35% |
| Dagette | 8/10 | 4822 days | 45% |
| Wright | 10/10 | 5040 days | 46% |
| Emma Bagguley | 4/10 | 5043 days | 29% |
| Hazel & Alan Damerell | 10/10 | 5047 days | 46% |
| Michael & Rosemary Smith | 9/10 | 5051 days | 46% |
| Koster | 10/10 | 5051 days | 46% |
| John A Jerome | 6/10 | 5051 days | 40% |
| Katrawa | 5/10 | 5058 days | 35% |
| Jensen Bresbenbeek | 7/10 | 5128 days | 43% |
| Rebecca & Hugh Small | 5/10 | 5137 days | 35% |
| Steve | 3/10 | 5141 days | 24% |
| topsy08 | 7/10 | 5371 days | 43% |
| Gunter | 9/10 | 5385 days | 46% |
| Tim Laurent | 5/10 | 5393 days | 35% |
| Keith Ogley | 6/10 | 5396 days | 40% |
| Lynda Hutchins | 10/10 | 5396 days | 46% |
| Louise van der Hyden | 4/10 | 5400 days | 29% |
| Katie Mitchell | 9/10 | 5402 days | 46% |
| Gerhard | 8/10 | 5403 days | 45% |
| Kasten | 8/10 | 5404 days | 45% |
| C P Lawrence | 4/10 | 5406 days | 29% |
| Bucher Weruer | 9/10 | 5406 days | 46% |
| Naomi Kosteaman | 9/10 | 5406 days | 46% |
| Rian Bach | 5/10 | 5408 days | 35% |
| Josef & Christine Evers | 8/10 | 5411 days | 45% |
| Frank Schedler | 5/10 | 5413 days | 35% |
| Gerd Pagel | 7/10 | 5415 days | 43% |
| Charlie | 9/10 | 5416 days | 46% |
| Dana Pagliarini | 5/10 | 5418 days | 35% |
| Andy Martin | 8/10 | 5419 days | 45% |
| Julia | 5/10 | 5422 days | 35% |
| Doris Neuber | 7/10 | 5429 days | 43% |
| Teknik151 | 4/10 | 5430 days | 29% |
| Warris2500 | 4/10 | 5614 days | 29% |
| Versteeg | 7/10 | 5688 days | 43% |
| Victoria Slater | 6/10 | 5741 days | 40% |
| Bowness | 10/10 | 5754 days | 46% |
| David B | 9/10 | 5762 days | 46% |
| Sievers | 9/10 | 5770 days | 46% |
| Don & Alice | 9/10 | 5771 days | 46% |
| Amanda Iavarone | 10/10 | 5773 days | 46% |
| Sheila Morgan | 10/10 | 5776 days | 46% |
| Wilbert Germ | 9/10 | 5780 days | 46% |
| Ronny | 6/10 | 5781 days | 40% |
| Annette Schmitt | 4/10 | 5789 days | 29% |
| Annie | 7/10 | 5789 days | 43% |
| Nadine Schaee | 6/10 | 5792 days | 40% |
| Terry Phillips | 8/10 | 5792 days | 45% |
| Chance McGuire | 10/10 | 5795 days | 46% |
| Richard Pearson | 6/10 | 5805 days | 40% |
| cees juffermans | 3/10 | 5808 days | 24% |
| wenerz | 1/10 | 5842 days | 18% |
| Werner Zuis | 1/10 | 5842 days | 18% |
| alasiac | 10/10 | 5857 days | 46% |
| Mark Jenkins | 5/10 | 5865 days | 35% |
| Silvana Thom | 10/10 | 5867 days | 46% |
| Alexis De Wilde | 7/10 | 5867 days | 43% |
| Cyriel Schacken | 7/10 | 5867 days | 43% |
| Simon Bartholomew | 10/10 | 5869 days | 46% |
| Marcel Schleinkcfer | 10/10 | 5869 days | 46% |
| Thorben Thede | 9/10 | 5869 days | 46% |
| Roma | 9/10 | 5880 days | 46% |
| brianp | 8/10 | 5973 days | 45% |
| Rose and Jess Damon and Esler | 6/10 | 6010 days | 40% |
| OliverG1 | 9/10 | 6089 days | 46% |
| Anji Sprinks | 8/10 | 6098 days | 45% |
| Ger | 6/10 | 6099 days | 40% |
| JanW | 8/10 | 6113 days | 45% |
| Ian | 8/10 | 6124 days | 45% |
| Tatjane | 2/10 | 6132 days | 20% |
| ChristineM | 10/10 | 6134 days | 46% |
| SebastianGermany1 | 9/10 | 6136 days | 46% |
| Paul | 9/10 | 6144 days | 46% |
| SiegfriedL | 10/10 | 6156 days | 46% |
| purplekat99 | 9/10 | 6191 days | 46% |
| Klaus | 7/10 | 6492 days | 43% |
| Volders | 10/10 | 6494 days | 46% |
| Dot & Gordon Quaid | 9/10 | 6508 days | 46% |
| Roger & Margaret | 8/10 | 6515 days | 45% |
| John Howlett | 7/10 | 6517 days | 43% |
| Dupre | 7/10 | 6570 days | 43% |
| Paul Cowie | 9/10 | 6576 days | 46% |
| Floren | 9/10 | 6590 days | 46% |
| Killerblow | 10/10 | 6598 days | 46% |
| Lisbeth Johansson | 8/10 | 6703 days | 45% |
| TeamFlorida | 10/10 | 6838 days | 46% |
| John Beirne | 10/10 | 6855 days | 46% |
| Pete | 9/10 | 6855 days | 46% |
| Anne | 8/10 | 6855 days | 45% |
| Anna | 9/10 | 6860 days | 46% |
| Mitch | 8/10 | 6866 days | 45% |
| Ian | 9/10 | 6883 days | 46% |
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
-4.06% 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 | -4.00% |
| 198 | -4.02% |
| 199 | -4.04% |
| 200 | -4.06% |
| 201 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
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.