Kia ora, 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 | 3250 days | 97% |
| J P Schurer | 7/10 | 3250 days | 97% |
| Dries | 9/10 | 3290 days | 100% |
| Jasmine Rogers | 10/10 | 3303 days | 100% |
| Sophie | 10/10 | 3310 days | 99% |
| Nicholas Strozza | 8/10 | 3343 days | 94% |
| Jill Stebbing | 9/10 | 3566 days | 74% |
| Lothen | 8/10 | 3587 days | 71% |
| Lea Watterson | 9/10 | 3609 days | 70% |
| James Esele | 7/10 | 3663 days | 61% |
| Philipp | 2/10 | 3671 days | 28% |
| Coralie Ambrosino | 8/10 | 3929 days | 40% |
| Christoph | 10/10 | 3932 days | 40% |
| Fanny DeBon | 8/10 | 4030 days | 30% |
| Hubert | 10/10 | 4040 days | 30% |
| Sagi | 2/10 | 4311 days | 1% |
| Henrik Suefke | 10/10 | 4329 days | 3% |
| Kiernan Matthew | 7/10 | 4334 days | 2% |
| Alexis Redor | 9/10 | 4338 days | 2% |
| Lars Borgaa | 4/10 | 4347 days | 0% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 4641 days | 30% |
| Glenn Surzur | 4/10 | 4668 days | 30% |
| Michael Walker | 10/10 | 4674 days | 46% |
| Lorraine Walker | 9/10 | 4674 days | 46% |
| Michael Nolan | 10/10 | 4700 days | 46% |
| Jim Woodruff | 10/10 | 4700 days | 46% |
| Lis Bon | 10/10 | 4731 days | 46% |
| Liam Day | 10/10 | 4748 days | 46% |
| Auger | 9/10 | 4769 days | 46% |
| Auger | 9/10 | 4769 days | 46% |
| C Schaap | 8/10 | 4773 days | 45% |
| Marjo Cousijn | 9/10 | 4779 days | 46% |
| gareth williams | 5/10 | 4823 days | 35% |
| Dagette | 8/10 | 4823 days | 45% |
| Wright | 10/10 | 5041 days | 46% |
| Emma Bagguley | 4/10 | 5044 days | 30% |
| Hazel & Alan Damerell | 10/10 | 5048 days | 46% |
| Michael & Rosemary Smith | 9/10 | 5052 days | 46% |
| Koster | 10/10 | 5052 days | 46% |
| John A Jerome | 6/10 | 5052 days | 40% |
| Katrawa | 5/10 | 5059 days | 35% |
| Jensen Bresbenbeek | 7/10 | 5129 days | 43% |
| Rebecca & Hugh Small | 5/10 | 5138 days | 35% |
| Steve | 3/10 | 5142 days | 24% |
| topsy08 | 7/10 | 5372 days | 43% |
| Gunter | 9/10 | 5386 days | 46% |
| Tim Laurent | 5/10 | 5394 days | 35% |
| Keith Ogley | 6/10 | 5397 days | 40% |
| Lynda Hutchins | 10/10 | 5397 days | 46% |
| Louise van der Hyden | 4/10 | 5401 days | 30% |
| Katie Mitchell | 9/10 | 5403 days | 46% |
| Gerhard | 8/10 | 5404 days | 45% |
| Kasten | 8/10 | 5405 days | 45% |
| C P Lawrence | 4/10 | 5407 days | 30% |
| Bucher Weruer | 9/10 | 5407 days | 46% |
| Naomi Kosteaman | 9/10 | 5407 days | 46% |
| Rian Bach | 5/10 | 5409 days | 35% |
| Josef & Christine Evers | 8/10 | 5412 days | 45% |
| Frank Schedler | 5/10 | 5414 days | 35% |
| Gerd Pagel | 7/10 | 5416 days | 43% |
| Charlie | 9/10 | 5417 days | 46% |
| Dana Pagliarini | 5/10 | 5419 days | 35% |
| Andy Martin | 8/10 | 5420 days | 45% |
| Julia | 5/10 | 5423 days | 35% |
| Doris Neuber | 7/10 | 5430 days | 43% |
| Teknik151 | 4/10 | 5431 days | 30% |
| Warris2500 | 4/10 | 5615 days | 30% |
| Versteeg | 7/10 | 5689 days | 43% |
| Victoria Slater | 6/10 | 5742 days | 40% |
| Bowness | 10/10 | 5755 days | 46% |
| David B | 9/10 | 5763 days | 46% |
| Sievers | 9/10 | 5771 days | 46% |
| Don & Alice | 9/10 | 5772 days | 46% |
| Amanda Iavarone | 10/10 | 5774 days | 46% |
| Sheila Morgan | 10/10 | 5777 days | 46% |
| Wilbert Germ | 9/10 | 5781 days | 46% |
| Ronny | 6/10 | 5782 days | 40% |
| Annette Schmitt | 4/10 | 5790 days | 30% |
| Annie | 7/10 | 5790 days | 43% |
| Nadine Schaee | 6/10 | 5793 days | 40% |
| Terry Phillips | 8/10 | 5793 days | 45% |
| Chance McGuire | 10/10 | 5796 days | 46% |
| Richard Pearson | 6/10 | 5806 days | 40% |
| cees juffermans | 3/10 | 5809 days | 24% |
| wenerz | 1/10 | 5843 days | 18% |
| Werner Zuis | 1/10 | 5843 days | 18% |
| alasiac | 10/10 | 5858 days | 46% |
| Mark Jenkins | 5/10 | 5866 days | 35% |
| Silvana Thom | 10/10 | 5868 days | 46% |
| Alexis De Wilde | 7/10 | 5868 days | 43% |
| Cyriel Schacken | 7/10 | 5868 days | 43% |
| Simon Bartholomew | 10/10 | 5870 days | 46% |
| Marcel Schleinkcfer | 10/10 | 5870 days | 46% |
| Thorben Thede | 9/10 | 5870 days | 46% |
| Roma | 9/10 | 5881 days | 46% |
| brianp | 8/10 | 5974 days | 45% |
| Rose and Jess Damon and Esler | 6/10 | 6011 days | 40% |
| OliverG1 | 9/10 | 6090 days | 46% |
| Anji Sprinks | 8/10 | 6099 days | 45% |
| Ger | 6/10 | 6100 days | 40% |
| JanW | 8/10 | 6114 days | 45% |
| Ian | 8/10 | 6125 days | 45% |
| Tatjane | 2/10 | 6133 days | 20% |
| ChristineM | 10/10 | 6135 days | 46% |
| SebastianGermany1 | 9/10 | 6137 days | 46% |
| Paul | 9/10 | 6145 days | 46% |
| SiegfriedL | 10/10 | 6157 days | 46% |
| purplekat99 | 9/10 | 6192 days | 46% |
| Klaus | 7/10 | 6493 days | 43% |
| Volders | 10/10 | 6495 days | 46% |
| Dot & Gordon Quaid | 9/10 | 6509 days | 46% |
| Roger & Margaret | 8/10 | 6516 days | 45% |
| John Howlett | 7/10 | 6518 days | 43% |
| Dupre | 7/10 | 6571 days | 43% |
| Paul Cowie | 9/10 | 6577 days | 46% |
| Floren | 9/10 | 6591 days | 46% |
| Killerblow | 10/10 | 6599 days | 46% |
| Lisbeth Johansson | 8/10 | 6704 days | 45% |
| TeamFlorida | 10/10 | 6839 days | 46% |
| John Beirne | 10/10 | 6856 days | 46% |
| Pete | 9/10 | 6856 days | 46% |
| Anne | 8/10 | 6856 days | 45% |
| Anna | 9/10 | 6861 days | 46% |
| Mitch | 8/10 | 6867 days | 45% |
| Ian | 9/10 | 6884 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.