Ranking Score Explained
Hi there, 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.
Nick Morrison
Rankers owner
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
78.18%
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 | Face-to-Face | Weight | Relative Weight |
|---|---|---|---|---|---|
| Dina Schurer | 7/10 | 692 days |  |
36.88 | 100% |
| J P Schurer | 7/10 | 692 days | |
36.88 | 100% |
| Dries | 9/10 | 732 days | |
31.06 | 84% |
| Jasmine Rogers | 10/10 | 745 days | |
29.29 | 79% |
| Sophie | 10/10 | 752 days | |
28.37 | 76% |
| Nicholas Strozza | 8/10 | 785 days | |
24.27 | 65% |
| Jill Stebbing | 9/10 | 1008 days | |
7.44 | 19% |
| Lothen | 8/10 | 1029 days | |
6.83 | 17% |
| Lea Watterson | 9/10 | 1051 days | |
6.37 | 16% |
| James Esele | 7/10 | 1105 days | |
5.98 | 15% |
| Philipp | 2/10 | 1113 days | |
5.37 | 13% |
| Coralie Ambrosino | 8/10 | 1371 days | |
5.55 | 13% |
| Christoph | 10/10 | 1374 days | |
5.54 | 13% |
| Fanny DeBon | 8/10 | 1472 days | |
5.38 | 13% |
| Hubert | 10/10 | 1482 days | |
5.36 | 13% |
| Sagi | 2/10 | 1753 days | |
4.43 | 10% |
| Henrik Suefke | 10/10 | 1771 days | |
4.89 | 12% |
| Kiernan Matthew | 7/10 | 1776 days | |
4.88 | 12% |
| Alexis Redor | 9/10 | 1780 days | |
4.87 | 12% |
| Lars Borgaa | 4/10 | 1789 days | |
4.58 | 11% |
| Mette, Bo, Viktor & Olivia Seligmann | 4/10 | 2083 days | 3.39 | 7% | |
| Glenn Surzur | 4/10 | 2110 days | |
4.08 | 9% |
| Michael Walker | 10/10 | 2116 days | |
4.32 | 10% |
| Lorraine Walker | 9/10 | 2116 days | |
4.32 | 10% |
| Michael Nolan | 10/10 | 2142 days | 3.57 | 8% | |
| Jim Woodruff | 10/10 | 2142 days | 3.57 | 8% | |
| Lis Bon | 10/10 | 2173 days | 3.52 | 8% | |
| Liam Day | 10/10 | 2190 days | |
4.2 | 10% |
| Auger | 9/10 | 2211 days | |
4.17 | 10% |
| Auger | 9/10 | 2211 days | |
4.17 | 10% |
| C Schaap | 8/10 | 2215 days | |
4.16 | 10% |
| Marjo Cousijn | 9/10 | 2221 days | |
4.15 | 10% |
| gareth williams | 5/10 | 2265 days | 3.4 | 7% | |
| Dagette | 8/10 | 2265 days | 3.4 | 7% | |
| Wright | 10/10 | 2483 days | |
3.72 | 8% |
| Emma Bagguley | 4/10 | 2486 days | |
3.5 | 8% |
| Hazel & Alan Damerell | 10/10 | 2490 days | |
3.71 | 8% |
| Michael & Rosemary Smith | 9/10 | 2494 days | |
3.7 | 8% |
| Koster | 10/10 | 2494 days | |
3.7 | 8% |
| John A Jerome | 6/10 | 2494 days | |
3.7 | 8% |
| Katrawa | 5/10 | 2501 days | |
3.69 | 8% |
| Jensen Bresbenbeek | 7/10 | 2571 days | |
3.57 | 8% |
| Rebecca & Hugh Small | 5/10 | 2580 days | |
3.56 | 8% |
| Steve | 3/10 | 2584 days | |
3.29 | 7% |
| topsy08 | 7/10 | 2814 days | 2.65 | 5% | |
| Gunter | 9/10 | 2828 days | |
3.15 | 7% |
| Tim Laurent | 5/10 | 2836 days | |
3.14 | 7% |
| Keith Ogley | 6/10 | 2839 days | |
3.13 | 7% |
| Lynda Hutchins | 10/10 | 2839 days | |
3.13 | 7% |
| Louise van der Hyden | 4/10 | 2843 days | |
2.94 | 6% |
| Katie Mitchell | 9/10 | 2845 days | 2.6 | 5% | |
| Gerhard | 8/10 | 2846 days | |
3.12 | 7% |
| Kasten | 8/10 | 2847 days | |
3.12 | 7% |
| C P Lawrence | 4/10 | 2849 days | |
2.93 | 6% |
| Bucher Weruer | 9/10 | 2849 days | |
3.12 | 7% |
| Naomi Kosteaman | 9/10 | 2849 days | |
3.12 | 7% |
| Rian Bach | 5/10 | 2851 days | |
3.11 | 7% |
| Josef & Christine Evers | 8/10 | 2854 days | |
3.11 | 7% |
| Frank Schedler | 5/10 | 2856 days | |
3.11 | 7% |
| Gerd Pagel | 7/10 | 2858 days | |
3.1 | 7% |
| Charlie | 9/10 | 2859 days | |
3.1 | 7% |
| Dana Pagliarini | 5/10 | 2861 days | |
3.1 | 7% |
| Andy Martin | 8/10 | 2862 days | |
3.1 | 7% |
| Julia | 5/10 | 2865 days | |
3.09 | 7% |
| Doris Neuber | 7/10 | 2872 days | |
3.08 | 7% |
| Teknik151 | 4/10 | 2873 days | 2.38 | 5% | |
| Warris2500 | 4/10 | 3057 days | 2.15 | 4% | |
| Versteeg | 7/10 | 3131 days | |
2.65 | 5% |
| Victoria Slater | 6/10 | 3184 days | |
2.57 | 5% |
| Bowness | 10/10 | 3197 days | |
2.54 | 5% |
| David B | 9/10 | 3205 days | |
2.53 | 5% |
| Sievers | 9/10 | 3213 days | |
2.52 | 5% |
| Don & Alice | 9/10 | 3214 days | |
2.52 | 5% |
| Amanda Iavarone | 10/10 | 3216 days | |
2.51 | 5% |
| Sheila Morgan | 10/10 | 3219 days | |
2.51 | 5% |
| Wilbert Germ | 9/10 | 3223 days | |
2.5 | 5% |
| Ronny | 6/10 | 3224 days | |
2.5 | 5% |
| Annette Schmitt | 4/10 | 3232 days | |
2.34 | 5% |
| Annie | 7/10 | 3232 days | |
2.49 | 5% |
| Nadine Schaee | 6/10 | 3235 days | |
2.48 | 5% |
| Terry Phillips | 8/10 | 3235 days | |
2.48 | 5% |
| Chance McGuire | 10/10 | 3238 days | 2.06 | 4% | |
| Richard Pearson | 6/10 | 3248 days | |
2.46 | 5% |
| cees juffermans | 3/10 | 3251 days | |
2.27 | 4% |
| wenerz | 1/10 | 3285 days | |
2.1 | 4% |
| Werner Zuis | 1/10 | 3285 days | |
2.1 | 4% |
| alasiac | 10/10 | 3300 days | |
2.38 | 5% |
| Mark Jenkins | 5/10 | 3308 days | |
2.36 | 5% |
| Silvana Thom | 10/10 | 3310 days | |
2.36 | 5% |
| Alexis De Wilde | 7/10 | 3310 days | |
2.36 | 5% |
| Cyriel Schacken | 7/10 | 3310 days | |
2.36 | 5% |
| Simon Bartholomew | 10/10 | 3312 days | |
2.36 | 5% |
| Marcel Schleinkcfer | 10/10 | 3312 days | |
2.36 | 5% |
| Thorben Thede | 9/10 | 3312 days | |
2.36 | 5% |
| Roma | 9/10 | 3323 days | |
2.34 | 5% |
| brianp | 8/10 | 3416 days | |
2.18 | 4% |
| Rose and Jess Damon and Esler | 6/10 | 3453 days | 1.77 | 3% | |
| OliverG1 | 9/10 | 3532 days | |
1.99 | 4% |
| Anji Sprinks | 8/10 | 3541 days | |
1.98 | 4% |
| Ger | 6/10 | 3542 days | |
1.98 | 4% |
| JanW | 8/10 | 3556 days | |
1.95 | 3% |
| Ian | 8/10 | 3567 days | 1.61 | 3% | |
| Tatjane | 2/10 | 3575 days | |
1.73 | 3% |
| ChristineM | 10/10 | 3577 days | |
1.92 | 3% |
| SebastianGermany1 | 9/10 | 3579 days | |
1.92 | 3% |
| Paul | 9/10 | 3587 days | |
1.9 | 3% |
| SiegfriedL | 10/10 | 3599 days | |
1.88 | 3% |
| purplekat99 | 9/10 | 3634 days | 1.52 | 2% | |
| Klaus | 7/10 | 3935 days | |
1.33 | 2% |
| Volders | 10/10 | 3937 days | |
1.33 | 2% |
| Dot & Gordon Quaid | 9/10 | 3951 days | 1.09 | 1% | |
| Roger & Margaret | 8/10 | 3958 days | |
1.29 | 2% |
| John Howlett | 7/10 | 3960 days | |
1.29 | 2% |
| Dupre | 7/10 | 4013 days | |
1.2 | 1% |
| Paul Cowie | 9/10 | 4019 days | |
1.19 | 1% |
| Floren | 9/10 | 4033 days | |
1.17 | 1% |
| Killerblow | 10/10 | 4041 days | 0.96 | 1% | |
| Lisbeth Johansson | 8/10 | 4146 days | |
0.98 | 1% |
| TeamFlorida | 10/10 | 4281 days | |
0.76 | 0% |
| John Beirne | 10/10 | 4298 days | |
0.73 | 0% |
| Pete | 9/10 | 4298 days | |
0.73 | 0% |
| Anne | 8/10 | 4298 days | |
0.73 | 0% |
| Anna | 9/10 | 4303 days | |
0.73 | 0% |
| Mitch | 8/10 | 4309 days | |
0.72 | 0% |
| Ian | 9/10 | 4326 days | |
0.69 | 0% |
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
-7.28% Adjustment
There may be an adjustment if an experience hasn't received any reviews within the last 60 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 364 days.
The Oamaru Blue Penguin Colony experience has been adjusted for 364 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 361 | -7.22% |
| 362 | -7.24% |
| 363 | -7.26% |
| 364 | -7.28% |
| 365 | -7.30% |
| 366 | -7.32% |
| 367 | -7.34% |
| … | … |
Final Ranking Score
71%
The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.