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
79.42%
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 | 3539 days | 99% |
| J P Schurer | 7/10 | 3539 days | 99% |
| Dries | 9/10 | 3579 days | 100% |
| Jasmine Rogers | 10/10 | 3592 days | 99% |
| Sophie | 10/10 | 3599 days | 98% |
| Nicholas Strozza | 8/10 | 3632 days | 92% |
| Jill Stebbing | 9/10 | 3855 days | 63% |
| Lothen | 8/10 | 3876 days | 60% |
| Lea Watterson | 9/10 | 3898 days | 57% |
| James Esele | 7/10 | 3952 days | 47% |
| Philipp | 2/10 | 3960 days | 19% |
| Coralie Ambrosino | 8/10 | 4218 days | 15% |
| Christoph | 10/10 | 4221 days | 15% |
| Fanny DeBon | 8/10 | 4319 days | 1% |
| Hubert | 10/10 | 4329 days | 0% |
| Sagi | 2/10 | 4600 days | 24% |
| Henrik Suefke | 10/10 | 4618 days | 62% |
| Kiernan Matthew | 7/10 | 4623 days | 57% |
| Alexis Redor | 9/10 | 4627 days | 61% |
| Lars Borgaa | 4/10 | 4636 days | 38% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4930 days | 38% |
| Glenn Surzur | 4/10 | 4957 days | 38% |
| Michael Walker | 10/10 | 4963 days | 62% |
| Lorraine Walker | 9/10 | 4963 days | 61% |
| Michael Nolan | 10/10 | 4989 days | 62% |
| Jim Woodruff | 10/10 | 4989 days | 62% |
| Lis Bon | 10/10 | 5020 days | 62% |
| Liam Day | 10/10 | 5037 days | 62% |
| Auger | 9/10 | 5058 days | 61% |
| Auger | 9/10 | 5058 days | 61% |
| C Schaap | 8/10 | 5062 days | 61% |
| Marjo Cousijn | 9/10 | 5068 days | 61% |
| gareth williams | 5/10 | 5112 days | 46% |
| Dagette | 8/10 | 5112 days | 61% |
| Wright | 10/10 | 5330 days | 62% |
| Emma Bagguley | 4/10 | 5333 days | 38% |
| Hazel & Alan Damerell | 10/10 | 5337 days | 62% |
| Michael & Rosemary Smith | 9/10 | 5341 days | 61% |
| Koster | 10/10 | 5341 days | 62% |
| John A Jerome | 6/10 | 5341 days | 52% |
| Katrawa | 5/10 | 5348 days | 46% |
| Jensen Bresbenbeek | 7/10 | 5418 days | 57% |
| Rebecca & Hugh Small | 5/10 | 5427 days | 46% |
| Steve | 3/10 | 5431 days | 31% |
| topsy08 | 7/10 | 5661 days | 57% |
| Gunter | 9/10 | 5675 days | 61% |
| Tim Laurent | 5/10 | 5683 days | 46% |
| Keith Ogley | 6/10 | 5686 days | 52% |
| Lynda Hutchins | 10/10 | 5686 days | 62% |
| Louise van der Hyden | 4/10 | 5690 days | 38% |
| Katie Mitchell | 9/10 | 5692 days | 61% |
| Gerhard | 8/10 | 5693 days | 61% |
| Kasten | 8/10 | 5694 days | 61% |
| C P Lawrence | 4/10 | 5696 days | 38% |
| Bucher Weruer | 9/10 | 5696 days | 61% |
| Naomi Kosteaman | 9/10 | 5696 days | 61% |
| Rian Bach | 5/10 | 5698 days | 46% |
| Josef & Christine Evers | 8/10 | 5701 days | 61% |
| Frank Schedler | 5/10 | 5703 days | 46% |
| Gerd Pagel | 7/10 | 5705 days | 57% |
| Charlie | 9/10 | 5706 days | 61% |
| Dana Pagliarini | 5/10 | 5708 days | 46% |
| Andy Martin | 8/10 | 5709 days | 61% |
| Julia | 5/10 | 5712 days | 46% |
| Doris Neuber | 7/10 | 5719 days | 57% |
| Teknik151 | 4/10 | 5720 days | 38% |
| Warris2500 | 4/10 | 5903 days | 38% |
| Versteeg | 7/10 | 5977 days | 57% |
| Victoria Slater | 6/10 | 6031 days | 52% |
| Bowness | 10/10 | 6044 days | 62% |
| David B | 9/10 | 6052 days | 61% |
| Sievers | 9/10 | 6060 days | 61% |
| Don & Alice | 9/10 | 6061 days | 61% |
| Amanda Iavarone | 10/10 | 6063 days | 62% |
| Sheila Morgan | 10/10 | 6066 days | 62% |
| Wilbert Germ | 9/10 | 6070 days | 61% |
| Ronny | 6/10 | 6071 days | 52% |
| Annette Schmitt | 4/10 | 6079 days | 38% |
| Annie | 7/10 | 6079 days | 57% |
| Nadine Schaee | 6/10 | 6082 days | 52% |
| Terry Phillips | 8/10 | 6082 days | 61% |
| Chance McGuire | 10/10 | 6085 days | 62% |
| Richard Pearson | 6/10 | 6095 days | 52% |
| cees juffermans | 3/10 | 6098 days | 31% |
| wenerz | 1/10 | 6132 days | 21% |
| Werner Zuis | 1/10 | 6132 days | 21% |
| alasiac | 10/10 | 6147 days | 62% |
| Mark Jenkins | 5/10 | 6155 days | 46% |
| Silvana Thom | 10/10 | 6157 days | 62% |
| Alexis De Wilde | 7/10 | 6157 days | 57% |
| Cyriel Schacken | 7/10 | 6157 days | 57% |
| Simon Bartholomew | 10/10 | 6159 days | 62% |
| Marcel Schleinkcfer | 10/10 | 6159 days | 62% |
| Thorben Thede | 9/10 | 6159 days | 61% |
| Roma | 9/10 | 6170 days | 61% |
| brianp | 8/10 | 6262 days | 61% |
| Rose and Jess Damon and Esler | 6/10 | 6299 days | 52% |
| OliverG1 | 9/10 | 6378 days | 61% |
| Anji Sprinks | 8/10 | 6388 days | 61% |
| Ger | 6/10 | 6389 days | 52% |
| JanW | 8/10 | 6403 days | 61% |
| Ian | 8/10 | 6414 days | 61% |
| Tatjane | 2/10 | 6422 days | 24% |
| ChristineM | 10/10 | 6424 days | 62% |
| SebastianGermany1 | 9/10 | 6426 days | 61% |
| Paul | 9/10 | 6434 days | 61% |
| SiegfriedL | 10/10 | 6446 days | 62% |
| purplekat99 | 9/10 | 6481 days | 61% |
| Klaus | 7/10 | 6782 days | 57% |
| Volders | 10/10 | 6784 days | 62% |
| Dot & Gordon Quaid | 9/10 | 6797 days | 61% |
| Roger & Margaret | 8/10 | 6805 days | 61% |
| John Howlett | 7/10 | 6807 days | 57% |
| Dupre | 7/10 | 6860 days | 57% |
| Paul Cowie | 9/10 | 6866 days | 61% |
| Floren | 9/10 | 6880 days | 61% |
| Killerblow | 10/10 | 6888 days | 62% |
| Lisbeth Johansson | 8/10 | 6992 days | 61% |
| TeamFlorida | 10/10 | 7127 days | 62% |
| John Beirne | 10/10 | 7145 days | 62% |
| Pete | 9/10 | 7145 days | 61% |
| Anne | 8/10 | 7145 days | 61% |
| Anna | 9/10 | 7150 days | 61% |
| Mitch | 8/10 | 7156 days | 61% |
| Ian | 9/10 | 7173 days | 61% |
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
-3.25% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 68 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 | -3.20% |
| 198 | -3.22% |
| 199 | -3.23% |
| 200 | -3.25% |
| 201 | -3.27% |
| 202 | -3.28% |
| 203 | -3.30% |
| … | … |
Balancing Adjustment
4.20% 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.