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 | 3248 days | 97% |
| J P Schurer | 7/10 | 3248 days | 97% |
| Dries | 9/10 | 3288 days | 100% |
| Jasmine Rogers | 10/10 | 3301 days | 100% |
| Sophie | 10/10 | 3308 days | 99% |
| Nicholas Strozza | 8/10 | 3341 days | 94% |
| Jill Stebbing | 9/10 | 3564 days | 74% |
| Lothen | 8/10 | 3585 days | 71% |
| Lea Watterson | 9/10 | 3607 days | 70% |
| James Esele | 7/10 | 3661 days | 61% |
| Philipp | 2/10 | 3669 days | 28% |
| Coralie Ambrosino | 8/10 | 3927 days | 40% |
| Christoph | 10/10 | 3930 days | 40% |
| Fanny DeBon | 8/10 | 4028 days | 30% |
| Hubert | 10/10 | 4038 days | 30% |
| Sagi | 2/10 | 4309 days | 1% |
| Henrik Suefke | 10/10 | 4327 days | 3% |
| Kiernan Matthew | 7/10 | 4332 days | 2% |
| Alexis Redor | 9/10 | 4336 days | 2% |
| Lars Borgaa | 4/10 | 4345 days | 0% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4639 days | 29% |
| Glenn Surzur | 4/10 | 4666 days | 29% |
| Michael Walker | 10/10 | 4672 days | 46% |
| Lorraine Walker | 9/10 | 4672 days | 46% |
| Michael Nolan | 10/10 | 4698 days | 46% |
| Jim Woodruff | 10/10 | 4698 days | 46% |
| Lis Bon | 10/10 | 4729 days | 46% |
| Liam Day | 10/10 | 4746 days | 46% |
| Auger | 9/10 | 4767 days | 46% |
| Auger | 9/10 | 4767 days | 46% |
| C Schaap | 8/10 | 4771 days | 45% |
| Marjo Cousijn | 9/10 | 4777 days | 46% |
| gareth williams | 5/10 | 4821 days | 35% |
| Dagette | 8/10 | 4821 days | 45% |
| Wright | 10/10 | 5039 days | 46% |
| Emma Bagguley | 4/10 | 5042 days | 29% |
| Hazel & Alan Damerell | 10/10 | 5046 days | 46% |
| Michael & Rosemary Smith | 9/10 | 5050 days | 46% |
| Koster | 10/10 | 5050 days | 46% |
| John A Jerome | 6/10 | 5050 days | 39% |
| Katrawa | 5/10 | 5057 days | 35% |
| Jensen Bresbenbeek | 7/10 | 5127 days | 43% |
| Rebecca & Hugh Small | 5/10 | 5136 days | 35% |
| Steve | 3/10 | 5140 days | 24% |
| topsy08 | 7/10 | 5370 days | 43% |
| Gunter | 9/10 | 5384 days | 46% |
| Tim Laurent | 5/10 | 5392 days | 35% |
| Keith Ogley | 6/10 | 5395 days | 39% |
| Lynda Hutchins | 10/10 | 5395 days | 46% |
| Louise van der Hyden | 4/10 | 5399 days | 29% |
| Katie Mitchell | 9/10 | 5401 days | 46% |
| Gerhard | 8/10 | 5402 days | 45% |
| Kasten | 8/10 | 5403 days | 45% |
| C P Lawrence | 4/10 | 5405 days | 29% |
| Bucher Weruer | 9/10 | 5405 days | 46% |
| Naomi Kosteaman | 9/10 | 5405 days | 46% |
| Rian Bach | 5/10 | 5407 days | 35% |
| Josef & Christine Evers | 8/10 | 5410 days | 45% |
| Frank Schedler | 5/10 | 5412 days | 35% |
| Gerd Pagel | 7/10 | 5414 days | 43% |
| Charlie | 9/10 | 5415 days | 46% |
| Dana Pagliarini | 5/10 | 5417 days | 35% |
| Andy Martin | 8/10 | 5418 days | 45% |
| Julia | 5/10 | 5421 days | 35% |
| Doris Neuber | 7/10 | 5428 days | 43% |
| Teknik151 | 4/10 | 5429 days | 29% |
| Warris2500 | 4/10 | 5613 days | 29% |
| Versteeg | 7/10 | 5687 days | 43% |
| Victoria Slater | 6/10 | 5740 days | 39% |
| Bowness | 10/10 | 5753 days | 46% |
| David B | 9/10 | 5761 days | 46% |
| Sievers | 9/10 | 5769 days | 46% |
| Don & Alice | 9/10 | 5770 days | 46% |
| Amanda Iavarone | 10/10 | 5772 days | 46% |
| Sheila Morgan | 10/10 | 5775 days | 46% |
| Wilbert Germ | 9/10 | 5779 days | 46% |
| Ronny | 6/10 | 5780 days | 39% |
| Annette Schmitt | 4/10 | 5788 days | 29% |
| Annie | 7/10 | 5788 days | 43% |
| Nadine Schaee | 6/10 | 5791 days | 39% |
| Terry Phillips | 8/10 | 5791 days | 45% |
| Chance McGuire | 10/10 | 5794 days | 46% |
| Richard Pearson | 6/10 | 5804 days | 39% |
| cees juffermans | 3/10 | 5807 days | 24% |
| wenerz | 1/10 | 5841 days | 17% |
| Werner Zuis | 1/10 | 5841 days | 17% |
| alasiac | 10/10 | 5856 days | 46% |
| Mark Jenkins | 5/10 | 5864 days | 35% |
| Silvana Thom | 10/10 | 5866 days | 46% |
| Alexis De Wilde | 7/10 | 5866 days | 43% |
| Cyriel Schacken | 7/10 | 5866 days | 43% |
| Simon Bartholomew | 10/10 | 5868 days | 46% |
| Marcel Schleinkcfer | 10/10 | 5868 days | 46% |
| Thorben Thede | 9/10 | 5868 days | 46% |
| Roma | 9/10 | 5879 days | 46% |
| brianp | 8/10 | 5972 days | 45% |
| Rose and Jess Damon and Esler | 6/10 | 6009 days | 39% |
| OliverG1 | 9/10 | 6088 days | 46% |
| Anji Sprinks | 8/10 | 6097 days | 45% |
| Ger | 6/10 | 6098 days | 39% |
| JanW | 8/10 | 6112 days | 45% |
| Ian | 8/10 | 6124 days | 45% |
| Tatjane | 2/10 | 6131 days | 20% |
| ChristineM | 10/10 | 6133 days | 46% |
| SebastianGermany1 | 9/10 | 6135 days | 46% |
| Paul | 9/10 | 6143 days | 46% |
| SiegfriedL | 10/10 | 6155 days | 46% |
| purplekat99 | 9/10 | 6190 days | 46% |
| Klaus | 7/10 | 6491 days | 43% |
| Volders | 10/10 | 6493 days | 46% |
| Dot & Gordon Quaid | 9/10 | 6507 days | 46% |
| Roger & Margaret | 8/10 | 6514 days | 45% |
| John Howlett | 7/10 | 6516 days | 43% |
| Dupre | 7/10 | 6569 days | 43% |
| Paul Cowie | 9/10 | 6575 days | 46% |
| Floren | 9/10 | 6589 days | 46% |
| Killerblow | 10/10 | 6598 days | 46% |
| Lisbeth Johansson | 8/10 | 6702 days | 45% |
| TeamFlorida | 10/10 | 6837 days | 46% |
| John Beirne | 10/10 | 6854 days | 46% |
| Pete | 9/10 | 6854 days | 46% |
| Anne | 8/10 | 6854 days | 45% |
| Anna | 9/10 | 6859 days | 46% |
| Mitch | 8/10 | 6865 days | 45% |
| Ian | 9/10 | 6882 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.