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 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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

Portobello Village Tourist Park

Valid Reviews

83 Valid Reviews

The Portobello Village Tourist Park experience has a total of 83 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 83 valid reviews:

Rating Count Percentage
10/10 10
12%
9/10 16
19%
8/10 26
31%
7/10 15
18%
6/10 10
12%
5/10 3
4%
4/10 0
0%
3/10 2
2%
2/10 0
0%
1/10 1
1%

76.99% Average

The raw data average (mean) for all the Portobello Village Tourist Park valid reviews is 76.99% and is based on 83 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 83 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

81.66%

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
Sandy 9/10 34 days 99.82 100%
Maria 6/10 156 days 79.8 80%
M&P 8/10 185 days 89.85 90%
Tom Z. 9/10 216 days 92.61 93%
Tea 8/10 247 days 85.82 86%
Sue W 8/10 277 days 83.45 84%
Maryline 9/10 491 days 61.8 62%
Esa 7/10 522 days 51.71 52%
Vincent 9/10 522 days 56.82 57%
TP&MM 8/10 522 days 53.98 54%
Chantal 10/10 612 days 41.97 42%
James & Kerry 9/10 642 days 37.52 38%
Melinda Pyke 8/10 703 days 27.88 28%
Grizzly Girl 8/10 703 days 27.88 28%
Esteban 8/10 856 days 13.35 13%
Bridget Cumming 7/10 894 days 10.38 10%
M A Pelton 10/10 897 days 11.21 11%
UK 50-something couple 8/10 915 days 9.63 10%
Suzanne Wijsman 9/10 923 days 9.69 10%
Sandra Jeffers 6/10 1023 days 4.83 5%
Howard Morris 8/10 1039 days 5.22 5%
Geoff Steele 7/10 1067 days 4.66 5%
Matthias Wohlgemuth 7/10 1294 days 4.2 4%
sara hoeflaken 8/10 1308 days 4.35 4%
Roeland Driessen 8/10 1310 days 4.35 4%
Cyrielle Vallat 6/10 1366 days 3.71 4%
Susan H 10/10 1405 days 4.39 4%
Ruth Hernandez 8/10 1407 days 4.17 4%
Kate 8/10 1540 days 3.92 4%
Joanna du Toit 7/10 1697 days 3.48 3%
Yvonne Wu 8/10 1921 days 3.21 3%
Soizic Vandermeersch 7/10 1944 days 3.04 3%
Rossco 6/10 1951 days 2.76 3%
Erica b 7/10 1951 days 3.03 3%
Larry Dashiell 9/10 1982 days 3.26 3%
June Harris 6/10 2041 days 2.61 3%
Matthias Thorn 7/10 2041 days 2.87 3%
Richard 8/10 2226 days 2.65 3%
travelscot 9/10 2287 days 2.67 3%
Patricia Revel 9/10 2318 days true 2.61 3%
Katarina 10/10 2319 days true 2.6 3%
Gillian Scott 7/10 2346 days 2.32 2%
Julie Robinson 7/10 2363 days true 2.29 2%
Julien de la lande 6/10 2389 days true 2.05 2%
Wouter Bosch 7/10 2389 days true 2.25 2%
Aude Moulin 5/10 2389 days true 2.0 2%
Maya Bakker-deDreu 8/10 2397 days true 2.33 2%
JoMary Smith 8/10 2407 days 2.31 2%
2 tent travelers from Montreal 5/10 2438 days 1.92 2%
Grantygrant 7/10 2682 days 1.72 2%
Bertiethebus 8/10 2713 days 1.74 2%
Kadyan 6/10 2713 days 1.52 2%
Malgorzata 6/10 2717 days true 1.52 2%
Moni Sangoi 7/10 2741 days 1.62 2%
Puma17 7/10 2772 days 1.56 2%
David 5/10 2772 days 1.39 1%
Auger 10/10 2810 days true 1.64 2%
Auger 10/10 2810 days true 1.64 2%
Mike & Jennie 8/10 3089 days true 1.04 1%
Balonno 3/10 3138 days 0.77 1%
lydzb 6/10 3169 days 0.78 1%
ncopas 1/10 3169 days 0.69 1%
Annie Breton 6/10 3427 days true 0.36 0%
Robin Smith 10/10 3430 days true 0.43 0%
Jim & Rebecca 9/10 3436 days true 0.42 0%
Tony & Marina Greenaway 8/10 3437 days true 0.4 0%
Chris 8/10 3438 days true 0.39 0%
LandJ 9/10 3444 days 0.4 0%
Manfred & Gabi 9/10 3455 days true 0.38 0%
Frank Lehe 8/10 3457 days true 0.36 0%
Marieke and Bert-Jan 8/10 3460 days true 0.35 0%
Roy Seymour 8/10 3463 days true 0.35 0%
Sabine 9/10 3722 days true 0.0 0%
Anna 9/10 3727 days true 0.0 0%
Siebels Wilke 8/10 3741 days true 0.0 0%
Peter Aerborg 9/10 3745 days true 0.0 0%
Peter Brown 10/10 3805 days true 0.0 0%
John Cox 8/10 3815 days true 0.0 0%
Helmet Paula 3/10 3822 days true 0.0 0%
Lorena 10/10 3837 days 0.0 0%
Alexis De Wilde 9/10 3909 days true 0.0 0%
Decuq 7/10 3910 days true 0.0 0%
Vivien Williams 10/10 4161 days true 0.0 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 Portobello Village Tourist Park experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-0.27% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 121 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 25 days. Adjustments are according to the following table.

Days Adjustment
22 -0.24%
23 -0.25%
24 -0.26%
25 -0.27%
26 -0.28%
27 -0.29%
28 -0.30%

Final Ranking Score

81%

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.