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
79.56%
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 | 3407 days | 98% |
| J P Schurer | 7/10 | 3407 days | 98% |
| Dries | 9/10 | 3447 days | 100% |
| Jasmine Rogers | 10/10 | 3460 days | 99% |
| Sophie | 10/10 | 3467 days | 99% |
| Nicholas Strozza | 8/10 | 3500 days | 92% |
| Jill Stebbing | 9/10 | 3723 days | 63% |
| Lothen | 8/10 | 3744 days | 59% |
| Lea Watterson | 9/10 | 3766 days | 57% |
| James Esele | 7/10 | 3820 days | 46% |
| Philipp | 2/10 | 3828 days | 9% |
| Coralie Ambrosino | 8/10 | 4086 days | 14% |
| Christoph | 10/10 | 4089 days | 15% |
| Fanny DeBon | 8/10 | 4187 days | 1% |
| Hubert | 10/10 | 4197 days | 0% |
| Sagi | 2/10 | 4468 days | 7% |
| Henrik Suefke | 10/10 | 4486 days | 44% |
| Kiernan Matthew | 7/10 | 4491 days | 39% |
| Alexis Redor | 9/10 | 4495 days | 44% |
| Lars Borgaa | 4/10 | 4504 days | 20% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4798 days | 20% |
| Glenn Surzur | 4/10 | 4825 days | 20% |
| Michael Walker | 10/10 | 4831 days | 44% |
| Lorraine Walker | 9/10 | 4831 days | 44% |
| Michael Nolan | 10/10 | 4857 days | 44% |
| Jim Woodruff | 10/10 | 4857 days | 44% |
| Lis Bon | 10/10 | 4888 days | 44% |
| Liam Day | 10/10 | 4905 days | 44% |
| Auger | 9/10 | 4926 days | 44% |
| Auger | 9/10 | 4926 days | 44% |
| C Schaap | 8/10 | 4930 days | 43% |
| Marjo Cousijn | 9/10 | 4936 days | 44% |
| gareth williams | 5/10 | 4980 days | 28% |
| Dagette | 8/10 | 4980 days | 43% |
| Wright | 10/10 | 5198 days | 44% |
| Emma Bagguley | 4/10 | 5201 days | 20% |
| Hazel & Alan Damerell | 10/10 | 5205 days | 44% |
| Michael & Rosemary Smith | 9/10 | 5209 days | 44% |
| Koster | 10/10 | 5209 days | 44% |
| John A Jerome | 6/10 | 5209 days | 35% |
| Katrawa | 5/10 | 5216 days | 28% |
| Jensen Bresbenbeek | 7/10 | 5286 days | 39% |
| Rebecca & Hugh Small | 5/10 | 5295 days | 28% |
| Steve | 3/10 | 5299 days | 13% |
| topsy08 | 7/10 | 5529 days | 39% |
| Gunter | 9/10 | 5543 days | 44% |
| Tim Laurent | 5/10 | 5551 days | 28% |
| Keith Ogley | 6/10 | 5554 days | 35% |
| Lynda Hutchins | 10/10 | 5554 days | 44% |
| Louise van der Hyden | 4/10 | 5558 days | 20% |
| Katie Mitchell | 9/10 | 5560 days | 44% |
| Gerhard | 8/10 | 5561 days | 43% |
| Kasten | 8/10 | 5562 days | 43% |
| C P Lawrence | 4/10 | 5564 days | 20% |
| Bucher Weruer | 9/10 | 5564 days | 44% |
| Naomi Kosteaman | 9/10 | 5564 days | 44% |
| Rian Bach | 5/10 | 5566 days | 28% |
| Josef & Christine Evers | 8/10 | 5569 days | 43% |
| Frank Schedler | 5/10 | 5571 days | 28% |
| Gerd Pagel | 7/10 | 5573 days | 39% |
| Charlie | 9/10 | 5574 days | 44% |
| Dana Pagliarini | 5/10 | 5576 days | 28% |
| Andy Martin | 8/10 | 5577 days | 43% |
| Julia | 5/10 | 5580 days | 28% |
| Doris Neuber | 7/10 | 5587 days | 39% |
| Teknik151 | 4/10 | 5588 days | 20% |
| Warris2500 | 4/10 | 5772 days | 20% |
| Versteeg | 7/10 | 5846 days | 39% |
| Victoria Slater | 6/10 | 5899 days | 35% |
| Bowness | 10/10 | 5912 days | 44% |
| David B | 9/10 | 5920 days | 44% |
| Sievers | 9/10 | 5928 days | 44% |
| Don & Alice | 9/10 | 5929 days | 44% |
| Amanda Iavarone | 10/10 | 5931 days | 44% |
| Sheila Morgan | 10/10 | 5934 days | 44% |
| Wilbert Germ | 9/10 | 5938 days | 44% |
| Ronny | 6/10 | 5939 days | 35% |
| Annette Schmitt | 4/10 | 5947 days | 20% |
| Annie | 7/10 | 5947 days | 39% |
| Nadine Schaee | 6/10 | 5950 days | 35% |
| Terry Phillips | 8/10 | 5950 days | 43% |
| Chance McGuire | 10/10 | 5953 days | 44% |
| Richard Pearson | 6/10 | 5963 days | 35% |
| cees juffermans | 3/10 | 5966 days | 13% |
| wenerz | 1/10 | 6000 days | 3% |
| Werner Zuis | 1/10 | 6000 days | 3% |
| alasiac | 10/10 | 6015 days | 44% |
| Mark Jenkins | 5/10 | 6023 days | 28% |
| Silvana Thom | 10/10 | 6025 days | 44% |
| Alexis De Wilde | 7/10 | 6025 days | 39% |
| Cyriel Schacken | 7/10 | 6025 days | 39% |
| Simon Bartholomew | 10/10 | 6027 days | 44% |
| Marcel Schleinkcfer | 10/10 | 6027 days | 44% |
| Thorben Thede | 9/10 | 6027 days | 44% |
| Roma | 9/10 | 6038 days | 44% |
| brianp | 8/10 | 6131 days | 43% |
| Rose and Jess Damon and Esler | 6/10 | 6168 days | 35% |
| OliverG1 | 9/10 | 6247 days | 44% |
| Anji Sprinks | 8/10 | 6256 days | 43% |
| Ger | 6/10 | 6257 days | 35% |
| JanW | 8/10 | 6271 days | 43% |
| Ian | 8/10 | 6282 days | 43% |
| Tatjane | 2/10 | 6290 days | 7% |
| ChristineM | 10/10 | 6292 days | 44% |
| SebastianGermany1 | 9/10 | 6294 days | 44% |
| Paul | 9/10 | 6302 days | 44% |
| SiegfriedL | 10/10 | 6314 days | 44% |
| purplekat99 | 9/10 | 6349 days | 44% |
| Klaus | 7/10 | 6650 days | 39% |
| Volders | 10/10 | 6652 days | 44% |
| Dot & Gordon Quaid | 9/10 | 6665 days | 44% |
| Roger & Margaret | 8/10 | 6673 days | 43% |
| John Howlett | 7/10 | 6675 days | 39% |
| Dupre | 7/10 | 6728 days | 39% |
| Paul Cowie | 9/10 | 6734 days | 44% |
| Floren | 9/10 | 6748 days | 44% |
| Killerblow | 10/10 | 6756 days | 44% |
| Lisbeth Johansson | 8/10 | 6861 days | 43% |
| TeamFlorida | 10/10 | 6996 days | 44% |
| John Beirne | 10/10 | 7013 days | 44% |
| Pete | 9/10 | 7013 days | 44% |
| Anne | 8/10 | 7013 days | 43% |
| Anna | 9/10 | 7018 days | 44% |
| Mitch | 8/10 | 7024 days | 43% |
| Ian | 9/10 | 7041 days | 44% |
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
-2.67% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 96 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 | -2.63% |
| 198 | -2.65% |
| 199 | -2.66% |
| 200 | -2.67% |
| 201 | -2.69% |
| 202 | -2.70% |
| 203 | -2.71% |
| … | … |
Balancing Adjustment
3.96% 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.