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
73 Valid Reviews
The Harbour Tourist Park Oamaru experience has a total of 75 reviews. There are 73 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 73 valid reviews, the experience has 1 face-to-face review collected during interviews by our team.
Below is the distribution of ratings for the 73 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 25 |
|
34% |
| 9/10 | 19 |
|
26% |
| 8/10 | 13 |
|
18% |
| 7/10 | 8 |
|
11% |
| 6/10 | 6 |
|
8% |
| 5/10 | 1 |
|
1% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
85.62% Average
The raw data average (mean) for all the Harbour Tourist Park Oamaru valid reviews is 85.62% and is based on 73 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
87.42%
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 | Face-to-Face | Weight | Relative Weight |
|---|---|---|---|---|---|
| Joanne | 6/10 | 55 days | 99.52 | 100% | |
| Stefan Miedzinski | 10/10 | 55 days | 99.52 | 100% | |
| Flo | 9/10 | 83 days | 98.91 | 99% | |
| Siggi &Brian | 9/10 | 114 days | 97.94 | 98% | |
| Marilli | 8/10 | 145 days | 96.67 | 97% | |
| Mel | 9/10 | 175 days | 95.15 | 95% | |
| helen reeve | 8/10 | 206 days | 93.28 | 93% | |
| Melinda Pyke | 9/10 | 236 days | 91.17 | 91% | |
| S Weslake | 7/10 | 389 days | 76.02 | 75% | |
| Peacock | 8/10 | 389 days | 76.02 | 75% | |
| sand.sarit | 10/10 | 389 days | 76.02 | 75% | |
| Kat | 9/10 | 420 days | 72.05 | 71% | |
| Ben H | 10/10 | 420 days | 72.05 | 71% | |
| Mark Lindeman | 10/10 | 448 days | 68.2 | 67% | |
| Eversons | 10/10 | 448 days | 68.2 | 67% | |
| Nick Cartmell | 6/10 | 453 days |  |
80.98 | 81% |
| Suzanne Wijsman | 10/10 | 456 days | 67.05 | 66% | |
| Joe Trigg | 10/10 | 558 days | 50.7 | 49% | |
| Phil and Mel Rowson | 10/10 | 559 days | 50.53 | 49% | |
| Howard Morris | 9/10 | 572 days | 48.34 | 46% | |
| Michael Taing | 9/10 | 573 days | 48.18 | 46% | |
| Yasmin Tisdall | 10/10 | 594 days | 44.77 | 43% | |
| Nathan Lal | 10/10 | 652 days | 36.1 | 34% | |
| Jane | 9/10 | 695 days | 30.35 | 28% | |
| Eric Lau | 3/10 | 742 days | 22.52 | 19% | |
| Janet Pentelow | 9/10 | 746 days | 24.3 | 21% | |
| Jessica Holmes | 8/10 | 751 days | 23.75 | 21% | |
| Harriet Smith | 10/10 | 778 days | 20.92 | 18% | |
| Valeska Lauer | 10/10 | 785 days | 20.23 | 17% | |
| Kati Behrendt | 10/10 | 791 days | 19.64 | 16% | |
| Trent O'Keeffe | 9/10 | 834 days | 15.79 | 12% | |
| Erich Brueggermann | 8/10 | 842 days | 15.14 | 12% | |
| Walter Neff | 9/10 | 844 days | 14.98 | 12% | |
| Rebecca Lindsey | 9/10 | 844 days | 14.98 | 12% | |
| Sylvie Martel | 10/10 | 863 days | 13.53 | 10% | |
| P Rhodes | 8/10 | 873 days | 12.81 | 9% | |
| Rima | 10/10 | 883 days | 12.12 | 9% | |
| Marie Bittmann | 9/10 | 905 days | 10.72 | 7% | |
| Mike Guest | 8/10 | 923 days | 9.69 | 6% | |
| Lyle Walker | 10/10 | 944 days | 8.61 | 5% | |
| Jim MacDiarmid | 8/10 | 1028 days | 5.71 | 2% | |
| Rawiri johnston | 8/10 | 1028 days | 5.71 | 2% | |
| Eileen Teo | 10/10 | 1028 days | 5.71 | 2% | |
| Jenny Sharp | 7/10 | 1028 days | 5.71 | 2% | |
| Kathy Hart | 10/10 | 1089 days | 5.01 | 1% | |
| Markus Grau | 6/10 | 1089 days | 5.01 | 1% | |
| Julian Minnis | 10/10 | 1101 days | 4.99 | 1% | |
| Marian K | 9/10 | 1106 days | 4.98 | 1% | |
| Chadd Holland | 7/10 | 1121 days | 4.96 | 1% | |
| Matthew Francisco | 10/10 | 1139 days | 4.94 | 1% | |
| Diana Worwood | 7/10 | 1146 days | 4.93 | 1% | |
| Mallory Lopez | 10/10 | 1153 days | 4.92 | 1% | |
| Lay Tyng Chan | 6/10 | 1174 days | 4.89 | 1% | |
| Clint waters | 9/10 | 1210 days | 4.84 | 1% | |
| veda wills | 7/10 | 1210 days | 4.84 | 1% | |
| Zhao Lu | 10/10 | 1210 days | 4.84 | 1% | |
| Andy Bell | 9/10 | 1241 days | 4.8 | 1% | |
| Rebecca Hope | 9/10 | 1282 days | 4.74 | 1% | |
| Juan Gomez | 6/10 | 1289 days | 4.73 | 1% | |
| Amy Taylor | 8/10 | 1409 days | 4.57 | 1% | |
| Jessie Karsif | 10/10 | 1414 days | 4.56 | 1% | |
| Nicole | 8/10 | 1431 days | 4.54 | 1% | |
| Moira Moroney | 10/10 | 1446 days | 4.52 | 1% | |
| AusCampa | 6/10 | 1455 days | 4.51 | 1% | |
| Erica b | 7/10 | 1485 days | 4.47 | 1% | |
| Mike Gornall | 7/10 | 1516 days | 4.42 | 0% | |
| John Drake | 5/10 | 1531 days | 4.4 | 0% | |
| Gethin Pearson | 8/10 | 1537 days | 4.39 | 0% | |
| Kimberley Garrod | 8/10 | 1583 days | 4.33 | 0% | |
| Bjorn Privat | 7/10 | 1597 days | 4.31 | 0% | |
| Todd MacFarlane | 10/10 | 1606 days | 4.3 | 0% | |
| Bert Snel | 9/10 | 1606 days | 4.3 | 0% | |
| Matt Newby | 9/10 | 1850 days | 3.97 | 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
-0.42% 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 21 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 18 | -0.36% |
| 19 | -0.38% |
| 20 | -0.40% |
| 21 | -0.42% |
| 22 | -0.44% |
| 23 | -0.46% |
| 24 | -0.48% |
| … | … |
Final Ranking Score
87%
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.