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
79.77%
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 | 2885 days | 96% |
| J P Schurer | 7/10 | 2885 days | 96% |
| Dries | 9/10 | 2925 days | 100% |
| Jasmine Rogers | 10/10 | 2938 days | 100% |
| Sophie | 10/10 | 2945 days | 100% |
| Nicholas Strozza | 8/10 | 2978 days | 95% |
| Jill Stebbing | 9/10 | 3201 days | 81% |
| Lothen | 8/10 | 3222 days | 79% |
| Lea Watterson | 9/10 | 3244 days | 78% |
| James Esele | 7/10 | 3298 days | 70% |
| Philipp | 2/10 | 3306 days | 33% |
| Coralie Ambrosino | 8/10 | 3564 days | 55% |
| Christoph | 10/10 | 3567 days | 56% |
| Fanny DeBon | 8/10 | 3665 days | 48% |
| Hubert | 10/10 | 3675 days | 48% |
| Sagi | 2/10 | 3946 days | 13% |
| Henrik Suefke | 10/10 | 3964 days | 28% |
| Kiernan Matthew | 7/10 | 3969 days | 26% |
| Alexis Redor | 9/10 | 3973 days | 27% |
| Lars Borgaa | 4/10 | 3982 days | 17% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4276 days | 4% |
| Glenn Surzur | 4/10 | 4303 days | 3% |
| Michael Walker | 10/10 | 4309 days | 4% |
| Lorraine Walker | 9/10 | 4309 days | 4% |
| Michael Nolan | 10/10 | 4335 days | 2% |
| Jim Woodruff | 10/10 | 4335 days | 2% |
| Lis Bon | 10/10 | 4366 days | 0% |
| Liam Day | 10/10 | 4383 days | 35% |
| Auger | 9/10 | 4404 days | 34% |
| Auger | 9/10 | 4404 days | 34% |
| C Schaap | 8/10 | 4408 days | 34% |
| Marjo Cousijn | 9/10 | 4414 days | 34% |
| gareth williams | 5/10 | 4458 days | 26% |
| Dagette | 8/10 | 4458 days | 34% |
| Wright | 10/10 | 4676 days | 35% |
| Emma Bagguley | 4/10 | 4679 days | 22% |
| Hazel & Alan Damerell | 10/10 | 4683 days | 35% |
| Michael & Rosemary Smith | 9/10 | 4687 days | 34% |
| Koster | 10/10 | 4687 days | 35% |
| John A Jerome | 6/10 | 4687 days | 30% |
| Katrawa | 5/10 | 4694 days | 26% |
| Jensen Bresbenbeek | 7/10 | 4764 days | 32% |
| Rebecca & Hugh Small | 5/10 | 4773 days | 26% |
| Steve | 3/10 | 4777 days | 19% |
| topsy08 | 7/10 | 5007 days | 32% |
| Gunter | 9/10 | 5021 days | 34% |
| Tim Laurent | 5/10 | 5029 days | 26% |
| Keith Ogley | 6/10 | 5032 days | 30% |
| Lynda Hutchins | 10/10 | 5032 days | 35% |
| Louise van der Hyden | 4/10 | 5036 days | 22% |
| Katie Mitchell | 9/10 | 5038 days | 34% |
| Gerhard | 8/10 | 5039 days | 34% |
| Kasten | 8/10 | 5040 days | 34% |
| C P Lawrence | 4/10 | 5042 days | 22% |
| Bucher Weruer | 9/10 | 5042 days | 34% |
| Naomi Kosteaman | 9/10 | 5042 days | 34% |
| Rian Bach | 5/10 | 5044 days | 26% |
| Josef & Christine Evers | 8/10 | 5047 days | 34% |
| Frank Schedler | 5/10 | 5049 days | 26% |
| Gerd Pagel | 7/10 | 5051 days | 32% |
| Charlie | 9/10 | 5052 days | 34% |
| Dana Pagliarini | 5/10 | 5054 days | 26% |
| Andy Martin | 8/10 | 5055 days | 34% |
| Julia | 5/10 | 5058 days | 26% |
| Doris Neuber | 7/10 | 5065 days | 32% |
| Teknik151 | 4/10 | 5066 days | 22% |
| Warris2500 | 4/10 | 5250 days | 22% |
| Versteeg | 7/10 | 5324 days | 32% |
| Victoria Slater | 6/10 | 5377 days | 30% |
| Bowness | 10/10 | 5390 days | 35% |
| David B | 9/10 | 5398 days | 34% |
| Sievers | 9/10 | 5406 days | 34% |
| Don & Alice | 9/10 | 5407 days | 34% |
| Amanda Iavarone | 10/10 | 5409 days | 35% |
| Sheila Morgan | 10/10 | 5412 days | 35% |
| Wilbert Germ | 9/10 | 5416 days | 34% |
| Ronny | 6/10 | 5417 days | 30% |
| Annette Schmitt | 4/10 | 5425 days | 22% |
| Annie | 7/10 | 5425 days | 32% |
| Nadine Schaee | 6/10 | 5428 days | 30% |
| Terry Phillips | 8/10 | 5428 days | 34% |
| Chance McGuire | 10/10 | 5431 days | 35% |
| Richard Pearson | 6/10 | 5441 days | 30% |
| cees juffermans | 3/10 | 5444 days | 19% |
| wenerz | 1/10 | 5478 days | 14% |
| Werner Zuis | 1/10 | 5478 days | 14% |
| alasiac | 10/10 | 5493 days | 35% |
| Mark Jenkins | 5/10 | 5501 days | 26% |
| Silvana Thom | 10/10 | 5503 days | 35% |
| Alexis De Wilde | 7/10 | 5503 days | 32% |
| Cyriel Schacken | 7/10 | 5503 days | 32% |
| Simon Bartholomew | 10/10 | 5505 days | 35% |
| Marcel Schleinkcfer | 10/10 | 5505 days | 35% |
| Thorben Thede | 9/10 | 5505 days | 34% |
| Roma | 9/10 | 5516 days | 34% |
| brianp | 8/10 | 5609 days | 34% |
| Rose and Jess Damon and Esler | 6/10 | 5646 days | 30% |
| OliverG1 | 9/10 | 5725 days | 34% |
| Anji Sprinks | 8/10 | 5734 days | 34% |
| Ger | 6/10 | 5735 days | 30% |
| JanW | 8/10 | 5749 days | 34% |
| Ian | 8/10 | 5761 days | 34% |
| Tatjane | 2/10 | 5769 days | 15% |
| ChristineM | 10/10 | 5770 days | 35% |
| SebastianGermany1 | 9/10 | 5772 days | 34% |
| Paul | 9/10 | 5781 days | 34% |
| SiegfriedL | 10/10 | 5792 days | 35% |
| purplekat99 | 9/10 | 5827 days | 34% |
| Klaus | 7/10 | 6128 days | 32% |
| Volders | 10/10 | 6130 days | 35% |
| Dot & Gordon Quaid | 9/10 | 6144 days | 34% |
| Roger & Margaret | 8/10 | 6151 days | 34% |
| John Howlett | 7/10 | 6153 days | 32% |
| Dupre | 7/10 | 6206 days | 32% |
| Paul Cowie | 9/10 | 6212 days | 34% |
| Floren | 9/10 | 6226 days | 34% |
| Killerblow | 10/10 | 6235 days | 35% |
| Lisbeth Johansson | 8/10 | 6339 days | 34% |
| TeamFlorida | 10/10 | 6474 days | 35% |
| John Beirne | 10/10 | 6491 days | 35% |
| Pete | 9/10 | 6491 days | 34% |
| Anne | 8/10 | 6491 days | 34% |
| Anna | 9/10 | 6496 days | 34% |
| Mitch | 8/10 | 6502 days | 34% |
| Ian | 9/10 | 6519 days | 34% |
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
-4.05% 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
Balancing Adjustment
4.37% 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.