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 Harbour Tourist Park Oamaru.
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
Harbour Tourist Park Oamaru
Valid Reviews
71 Valid Reviews
The Harbour Tourist Park Oamaru experience has a total of 73 reviews. There are 71 valid reviews that are included when calculating the ranking score and 2 invalid reviews 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.
Within these 71 valid reviews, the experience has 1 face-to-face review collected during interviews by our team.
Below is the distribution of ratings for the 71 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 24 |
|
34% |
| 9/10 | 19 |
|
27% |
| 8/10 | 13 |
|
18% |
| 7/10 | 8 |
|
11% |
| 6/10 | 5 |
|
7% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
85.77% Average
The raw data average (mean) for all the Harbour Tourist Park Oamaru valid reviews is 85.77% and is based on 71 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Weighted Average
88.33%
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 |
|---|---|---|---|---|---|
| Flo | 9/10 | 16 days | 99.96 | 100% | |
| Siggi &Brian | 9/10 | 47 days | 99.65 | 100% | |
| Marilli | 8/10 | 78 days | 99.04 | 99% | |
| Mel | 9/10 | 108 days | 98.15 | 98% | |
| helen reeve | 8/10 | 139 days | 96.94 | 97% | |
| Melinda Pyke | 9/10 | 169 days | 95.47 | 95% | |
| S Weslake | 7/10 | 322 days | 83.57 | 83% | |
| Peacock | 8/10 | 322 days | 83.57 | 83% | |
| sand.sarit | 10/10 | 322 days | 83.57 | 83% | |
| Kat | 9/10 | 353 days | 80.25 | 79% | |
| Ben H | 10/10 | 353 days | 80.25 | 79% | |
| Mark Lindeman | 10/10 | 381 days | 77.0 | 76% | |
| Eversons | 10/10 | 381 days | 77.0 | 76% | |
| Nick Cartmell | 6/10 | 386 days |  |
91.67 | 91% |
| Suzanne Wijsman | 10/10 | 389 days | 76.02 | 75% | |
| Joe Trigg | 10/10 | 491 days | 61.8 | 60% | |
| Phil and Mel Rowson | 10/10 | 492 days | 61.64 | 60% | |
| Howard Morris | 9/10 | 505 days | 59.59 | 58% | |
| Michael Taing | 9/10 | 506 days | 59.43 | 58% | |
| Yasmin Tisdall | 10/10 | 527 days | 55.99 | 54% | |
| Nathan Lal | 10/10 | 585 days | 46.22 | 44% | |
| Jane | 9/10 | 628 days | 39.56 | 37% | |
| Eric Lau | 3/10 | 675 days | 29.99 | 27% | |
| Janet Pentelow | 9/10 | 679 days | 32.42 | 30% | |
| Jessica Holmes | 8/10 | 684 days | 31.77 | 29% | |
| Harriet Smith | 10/10 | 711 days | 28.37 | 25% | |
| Valeska Lauer | 10/10 | 718 days | 27.52 | 24% | |
| Kati Behrendt | 10/10 | 724 days | 26.81 | 24% | |
| Trent O'Keeffe | 9/10 | 767 days | 22.05 | 19% | |
| Erich Brueggermann | 8/10 | 775 days | 21.23 | 18% | |
| Walter Neff | 9/10 | 776 days | 21.13 | 18% | |
| Rebecca Lindsey | 9/10 | 776 days | 21.13 | 18% | |
| Sylvie Martel | 10/10 | 796 days | 19.17 | 16% | |
| P Rhodes | 8/10 | 806 days | 18.23 | 15% | |
| Rima | 10/10 | 816 days | 17.33 | 14% | |
| Marie Bittmann | 9/10 | 837 days | 15.55 | 12% | |
| Mike Guest | 8/10 | 856 days | 14.05 | 10% | |
| Lyle Walker | 10/10 | 877 days | 12.53 | 9% | |
| Jim MacDiarmid | 8/10 | 960 days | 7.89 | 4% | |
| Rawiri johnston | 8/10 | 960 days | 7.89 | 4% | |
| Eileen Teo | 10/10 | 960 days | 7.89 | 4% | |
| Jenny Sharp | 7/10 | 961 days | 7.85 | 4% | |
| Kathy Hart | 10/10 | 1021 days | 5.87 | 2% | |
| Markus Grau | 6/10 | 1022 days | 5.84 | 2% | |
| Julian Minnis | 10/10 | 1034 days | 5.59 | 2% | |
| Marian K | 9/10 | 1039 days | 5.5 | 2% | |
| Chadd Holland | 7/10 | 1054 days | 5.27 | 1% | |
| Matthew Francisco | 10/10 | 1072 days | 5.08 | 1% | |
| Diana Worwood | 7/10 | 1079 days | 5.04 | 1% | |
| Mallory Lopez | 10/10 | 1086 days | 5.01 | 1% | |
| Lay Tyng Chan | 6/10 | 1107 days | 4.98 | 1% | |
| Clint waters | 9/10 | 1142 days | 4.94 | 1% | |
| veda wills | 7/10 | 1142 days | 4.94 | 1% | |
| Zhao Lu | 10/10 | 1142 days | 4.94 | 1% | |
| Andy Bell | 9/10 | 1173 days | 4.89 | 1% | |
| Rebecca Hope | 9/10 | 1215 days | 4.84 | 1% | |
| Juan Gomez | 6/10 | 1222 days | 4.83 | 1% | |
| Amy Taylor | 8/10 | 1342 days | 4.66 | 1% | |
| Jessie Karsif | 10/10 | 1347 days | 4.65 | 1% | |
| Nicole | 8/10 | 1364 days | 4.63 | 1% | |
| Moira Moroney | 10/10 | 1379 days | 4.61 | 1% | |
| AusCampa | 6/10 | 1387 days | 4.6 | 1% | |
| Erica b | 7/10 | 1417 days | 4.56 | 1% | |
| Mike Gornall | 7/10 | 1448 days | 4.52 | 0% | |
| John Drake | 5/10 | 1464 days | 4.49 | 0% | |
| Gethin Pearson | 8/10 | 1470 days | 4.49 | 0% | |
| Kimberley Garrod | 8/10 | 1516 days | 4.42 | 0% | |
| Bjorn Privat | 7/10 | 1530 days | 4.4 | 0% | |
| Todd MacFarlane | 10/10 | 1538 days | 4.39 | 0% | |
| Bert Snel | 9/10 | 1538 days | 4.39 | 0% | |
| Matt Newby | 9/10 | 1783 days | 4.06 | 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 Harbour Tourist Park Oamaru experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-0.10% Adjustment
There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Harbour Tourist Park Oamaru 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 Harbour Tourist Park Oamaru experience has been adjusted for 5 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 2 | -0.04% |
| 3 | -0.06% |
| 4 | -0.08% |
| 5 | -0.10% |
| 6 | -0.12% |
| 7 | -0.14% |
| 8 | -0.16% |
| … | … |
Final Ranking Score
88%
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.