Hey, 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.
Harbour Tourist Park Oamaru
Valid Reviews
99 Valid Reviews
The Harbour Tourist Park Oamaru experience has a total of 104 reviews. There are 99 valid reviews that are included when calculating the ranking score and 5 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 99 valid reviews, the experience has 1 face-to-face review collected during interviews by our team.
Below is the distribution of ratings for the 99 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 33 |
|
33% |
| 9/10 | 25 |
|
25% |
| 8/10 | 19 |
|
19% |
| 7/10 | 9 |
|
9% |
| 6/10 | 7 |
|
7% |
| 5/10 | 5 |
|
5% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
1% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
84.85% Average
The raw data average (mean) for all the Harbour Tourist Park Oamaru valid reviews is 84.85% and is based on 99 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
81.49%
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 |
|---|---|---|---|
| Rory | 5/10 | 51 days | 76% |
| Sue Peggs | 10/10 | 51 days | 100% |
| Symen | 7/10 | 296 days | 88% |
| Ian Garcia | 5/10 | 325 days | 71% |
| Ulli | 5/10 | 356 days | 71% |
| Pippin | 8/10 | 387 days | 90% |
| Anna | 10/10 | 387 days | 92% |
| Dan | 8/10 | 478 days | 85% |
| Marie Perret | 6/10 | 478 days | 75% |
| Varneia | 9/10 | 601 days | 79% |
| Liz | 9/10 | 631 days | 76% |
| Julia | 10/10 | 721 days | 70% |
| Kirsty Speers | 10/10 | 782 days | 65% |
| Sarah | 8/10 | 782 days | 64% |
| Colin | 10/10 | 843 days | 59% |
| Sara | 5/10 | 1573 days | 6% |
| Katie | 8/10 | 1817 days | 4% |
| Anton | 9/10 | 1817 days | 4% |
| Leona | 8/10 | 1817 days | 4% |
| Jennifer Hebert | 10/10 | 1848 days | 4% |
| Jennifer Hebert | 10/10 | 1848 days | 4% |
| Tea | 9/10 | 1848 days | 4% |
| Beth Carlton | 10/10 | 1878 days | 4% |
| ShaneandJosiegoat | 9/10 | 1909 days | 4% |
| ShaneandJosiegoat | 9/10 | 1909 days | 4% |
| EmStems | 8/10 | 1939 days | 4% |
| Joanne | 6/10 | 2123 days | 3% |
| Stefan Miedzinski | 10/10 | 2123 days | 4% |
| Flo | 9/10 | 2151 days | 3% |
| Siggi &Brian | 9/10 | 2182 days | 3% |
| Marilli | 8/10 | 2213 days | 3% |
| Mel | 9/10 | 2243 days | 3% |
| helen reeve | 8/10 | 2274 days | 3% |
| Melinda Pyke | 9/10 | 2304 days | 3% |
| S Weslake | 7/10 | 2457 days | 3% |
| Peacock | 8/10 | 2457 days | 3% |
| sand.sarit | 10/10 | 2457 days | 3% |
| Kat | 9/10 | 2488 days | 3% |
| Ben H | 10/10 | 2488 days | 3% |
| Mark Lindeman | 10/10 | 2516 days | 3% |
| Eversons | 10/10 | 2516 days | 3% |
| Nick Cartmell | 6/10 | 2521 days | 1% |
| Suzanne Wijsman | 10/10 | 2524 days | 3% |
| Joe Trigg | 10/10 | 2626 days | 3% |
| Phil and Mel Rowson | 10/10 | 2627 days | 3% |
| Howard Morris | 9/10 | 2640 days | 3% |
| Michael Taing | 9/10 | 2641 days | 3% |
| Yasmin Tisdall | 10/10 | 2662 days | 2% |
| Nathan Lal | 10/10 | 2720 days | 2% |
| Jane | 9/10 | 2763 days | 2% |
| Eric Lau | 3/10 | 2810 days | 1% |
| Janet Pentelow | 9/10 | 2814 days | 2% |
| Jessica Holmes | 8/10 | 2819 days | 2% |
| Harriet Smith | 10/10 | 2846 days | 2% |
| Valeska Lauer | 10/10 | 2853 days | 2% |
| Kati Behrendt | 10/10 | 2859 days | 2% |
| Trent O'Keeffe | 9/10 | 2902 days | 2% |
| Erich Brueggermann | 8/10 | 2910 days | 2% |
| Walter Neff | 9/10 | 2911 days | 2% |
| Rebecca Lindsey | 9/10 | 2911 days | 2% |
| Sylvie Martel | 10/10 | 2931 days | 2% |
| P Rhodes | 8/10 | 2941 days | 2% |
| Rima | 10/10 | 2951 days | 2% |
| Marie Bittmann | 9/10 | 2972 days | 2% |
| Mike Guest | 8/10 | 2991 days | 2% |
| Lyle Walker | 10/10 | 3012 days | 2% |
| Jim MacDiarmid | 8/10 | 3095 days | 2% |
| Rawiri johnston | 8/10 | 3095 days | 2% |
| Eileen Teo | 10/10 | 3095 days | 2% |
| Jenny Sharp | 7/10 | 3096 days | 1% |
| Kathy Hart | 10/10 | 3156 days | 2% |
| Markus Grau | 6/10 | 3157 days | 1% |
| Julian Minnis | 10/10 | 3169 days | 1% |
| Marian K | 9/10 | 3174 days | 1% |
| Chadd Holland | 7/10 | 3189 days | 1% |
| Matthew Francisco | 10/10 | 3207 days | 1% |
| Diana Worwood | 7/10 | 3214 days | 1% |
| Mallory Lopez | 10/10 | 3221 days | 1% |
| Lay Tyng Chan | 6/10 | 3242 days | 1% |
| Clint waters | 9/10 | 3277 days | 1% |
| veda wills | 7/10 | 3277 days | 1% |
| Zhao Lu | 10/10 | 3277 days | 1% |
| Andy Bell | 9/10 | 3308 days | 1% |
| Rebecca Hope | 9/10 | 3350 days | 1% |
| Juan Gomez | 6/10 | 3357 days | 1% |
| Amy Taylor | 8/10 | 3477 days | 1% |
| Jessie Karsif | 10/10 | 3482 days | 1% |
| Nicole | 8/10 | 3499 days | 1% |
| Moira Moroney | 10/10 | 3514 days | 1% |
| AusCampa | 6/10 | 3522 days | 1% |
| Erica b | 7/10 | 3552 days | 1% |
| Mike Gornall | 7/10 | 3583 days | 1% |
| John Drake | 5/10 | 3599 days | 0% |
| Gethin Pearson | 8/10 | 3605 days | 1% |
| Kimberley Garrod | 8/10 | 3651 days | 1% |
| Bjorn Privat | 7/10 | 3665 days | 0% |
| Todd MacFarlane | 10/10 | 3673 days | 0% |
| Bert Snel | 9/10 | 3673 days | 0% |
| Matt Newby | 9/10 | 3918 days | 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
-0.81% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 41 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Harbour Tourist Park Oamaru experience has been adjusted for 40 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 37 | -0.75% |
| 38 | -0.77% |
| 39 | -0.79% |
| 40 | -0.81% |
| 41 | -0.83% |
| 42 | -0.85% |
| 43 | -0.87% |
| … | … |
Balancing Adjustment
2.81% 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
84%
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.