G'day, 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 Portobello Village Tourist Park.
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.
Portobello Village Tourist Park
Valid Reviews
105 Valid Reviews
The Portobello Village Tourist Park experience has a total of 105 valid reviews. There are no 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.
Below is the distribution of ratings for the 105 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 13 |
|
12% |
| 9/10 | 24 |
|
23% |
| 8/10 | 33 |
|
31% |
| 7/10 | 17 |
|
16% |
| 6/10 | 12 |
|
11% |
| 5/10 | 3 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 2 |
|
2% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
1% |
78.38% Average
The raw data average (mean) for all the Portobello Village Tourist Park valid reviews is 78.38% and is based on 105 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
30 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 105 valid reviews, the experience has 30 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 30 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 6 |
|
20% |
| 9/10 | 7 |
|
23% |
| 8/10 | 9 |
|
30% |
| 7/10 | 3 |
|
10% |
| 6/10 | 3 |
|
10% |
| 5/10 | 1 |
|
3% |
| 4/10 | 0 |
|
0% |
| 3/10 | 1 |
|
3% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
80.67% Average
The raw data average (mean) for all the Portobello Village Tourist Park face-to-face reviews is 80.67% and is based on 30 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
82.71%
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 |
|---|---|---|---|
| Anne | 8/10 | 18 days | 100% |
| Nicolas | 7/10 | 110 days | 94% |
| Hayley | 9/10 | 171 days | 99% |
| Lindsay Byrnes | 8/10 | 293 days | 95% |
| Fabienne | 8/10 | 324 days | 94% |
| Ian Garcia | 8/10 | 353 days | 93% |
| Tine Warner | 9/10 | 384 days | 93% |
| Joel Fryett | 6/10 | 384 days | 80% |
| Loam | 6/10 | 384 days | 80% |
| M.K. | 9/10 | 476 days | 88% |
| Ryli West | 8/10 | 659 days | 75% |
| Steve | 9/10 | 690 days | 74% |
| Jake | 10/10 | 718 days | 72% |
| Arie | 7/10 | 749 days | 65% |
| Julia | 9/10 | 780 days | 66% |
| Debby | 9/10 | 810 days | 63% |
| Lothar Valentijn | 10/10 | 810 days | 64% |
| Sarah | 9/10 | 810 days | 63% |
| Colin | 8/10 | 841 days | 60% |
| Lisa | 10/10 | 963 days | 48% |
| Anne S | 9/10 | 1055 days | 39% |
| Ana and Rob | 8/10 | 1632 days | 7% |
| Sandy | 9/10 | 1663 days | 7% |
| Maria | 6/10 | 1785 days | 4% |
| M&P | 8/10 | 1814 days | 5% |
| Tom Z. | 9/10 | 1845 days | 5% |
| Tea | 8/10 | 1876 days | 5% |
| Sue W | 8/10 | 1906 days | 5% |
| Maryline | 9/10 | 2120 days | 4% |
| Esa | 7/10 | 2151 days | 4% |
| Vincent | 9/10 | 2151 days | 4% |
| TP&MM | 8/10 | 2151 days | 4% |
| Chantal | 10/10 | 2241 days | 4% |
| James & Kerry | 9/10 | 2271 days | 4% |
| Melinda Pyke | 8/10 | 2332 days | 4% |
| Grizzly Girl | 8/10 | 2332 days | 4% |
| Esteban | 8/10 | 2485 days | 4% |
| Bridget Cumming | 7/10 | 2523 days | 3% |
| M A Pelton | 10/10 | 2526 days | 4% |
| UK 50-something couple | 8/10 | 2544 days | 4% |
| Suzanne Wijsman | 9/10 | 2552 days | 4% |
| Sandra Jeffers | 6/10 | 2652 days | 3% |
| Howard Morris | 8/10 | 2668 days | 3% |
| Geoff Steele | 7/10 | 2697 days | 3% |
| Matthias Wohlgemuth | 7/10 | 2923 days | 3% |
| sara hoeflaken | 8/10 | 2937 days | 3% |
| Roeland Driessen | 8/10 | 2940 days | 3% |
| Cyrielle Vallat | 6/10 | 2995 days | 2% |
| Susan H | 10/10 | 3034 days | 3% |
| Ruth Hernandez | 8/10 | 3036 days | 3% |
| Kate | 8/10 | 3169 days | 2% |
| Joanna du Toit | 7/10 | 3326 days | 2% |
| Yvonne Wu | 8/10 | 3551 days | 2% |
| Soizic Vandermeersch | 7/10 | 3573 days | 1% |
| Rossco | 6/10 | 3581 days | 1% |
| Erica b | 7/10 | 3581 days | 1% |
| Larry Dashiell | 9/10 | 3612 days | 2% |
| June Harris | 6/10 | 3671 days | 1% |
| Matthias Thorn | 7/10 | 3671 days | 1% |
| Richard | 8/10 | 3855 days | 1% |
| travelscot | 9/10 | 3916 days | 1% |
| Patricia Revel | 9/10 | 3947 days | 1% |
| Katarina | 10/10 | 3948 days | 1% |
| Gillian Scott | 7/10 | 3975 days | 1% |
| Julie Robinson | 7/10 | 3992 days | 1% |
| Julien de la lande | 6/10 | 4018 days | 0% |
| Wouter Bosch | 7/10 | 4018 days | 1% |
| Aude Moulin | 5/10 | 4018 days | 0% |
| Maya Bakker-deDreu | 8/10 | 4026 days | 1% |
| JoMary Smith | 8/10 | 4036 days | 1% |
| 2 tent travelers from Montreal | 5/10 | 4067 days | 0% |
| Grantygrant | 7/10 | 4311 days | 0% |
| Bertiethebus | 8/10 | 4342 days | 0% |
| Kadyan | 6/10 | 4342 days | 0% |
| Malgorzata | 6/10 | 4346 days | 0% |
| Moni Sangoi | 7/10 | 4370 days | 0% |
| Puma17 | 7/10 | 4401 days | 1% |
| David | 5/10 | 4401 days | 1% |
| Auger | 10/10 | 4439 days | 1% |
| Auger | 10/10 | 4439 days | 1% |
| Mike & Jennie | 8/10 | 4718 days | 1% |
| Balonno | 3/10 | 4767 days | 1% |
| lydzb | 6/10 | 4798 days | 1% |
| ncopas | 1/10 | 4798 days | 0% |
| Annie Breton | 6/10 | 5056 days | 1% |
| Robin Smith | 10/10 | 5059 days | 1% |
| Jim & Rebecca | 9/10 | 5065 days | 1% |
| Tony & Marina Greenaway | 8/10 | 5066 days | 1% |
| Chris | 8/10 | 5067 days | 1% |
| LandJ | 9/10 | 5073 days | 1% |
| Manfred & Gabi | 9/10 | 5084 days | 1% |
| Frank Lehe | 8/10 | 5086 days | 1% |
| Marieke and Bert-Jan | 8/10 | 5089 days | 1% |
| Roy Seymour | 8/10 | 5092 days | 1% |
| Sabine | 9/10 | 5351 days | 1% |
| Anna | 9/10 | 5356 days | 1% |
| Siebels Wilke | 8/10 | 5370 days | 1% |
| Peter Aerborg | 9/10 | 5374 days | 1% |
| Peter Brown | 10/10 | 5434 days | 1% |
| John Cox | 8/10 | 5444 days | 1% |
| Helmet Paula | 3/10 | 5451 days | 0% |
| Lorena | 10/10 | 5466 days | 1% |
| Alexis De Wilde | 9/10 | 5538 days | 1% |
| Decuq | 7/10 | 5539 days | 1% |
| Vivien Williams | 10/10 | 5790 days | 1% |
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 Portobello Village Tourist Park experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-0.08% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 46 days. However the Portobello Village Tourist Park 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 Portobello Village Tourist Park experience has been adjusted for 4 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 1 | -0.02% |
| 2 | -0.04% |
| 3 | -0.06% |
| 4 | -0.08% |
| 5 | -0.10% |
| 6 | -0.12% |
| 7 | -0.14% |
| … | … |
Balancing Adjustment
2.33% 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
85%
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.