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 Bargain Rental Cars.

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

Bargain Rental Cars

Valid Reviews

40 Valid Reviews

The Bargain Rental Cars experience has a total of 46 reviews. There are 40 valid reviews that are included when calculating the ranking score and 6 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 40 valid reviews, the experience has 3 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 40 valid reviews:

Rating Count Percentage
10/10 19
48%
9/10 8
20%
8/10 2
5%
7/10 0
0%
6/10 1
3%
5/10 1
3%
4/10 0
0%
3/10 0
0%
2/10 1
3%
1/10 8
20%

74.75% Average

The raw data average (mean) for all the Bargain Rental Cars valid reviews is 74.75% and is based on 40 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

67.28%

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
Ali Millar 2/10 89 days 74.06 94%
Pete UK 9/10 364 days 79.0 100%
Ms Harris 1/10 364 days 57.67 73%
Tyler 1/10 392 days 55.22 70%
Kate 1/10 454 days 49.16 62%
Terry Smith 1/10 545 days 38.64 49%
Qassim Kaisi 10/10 668 days 33.89 43%
VAINE TUKURANGI TOKI 10/10 668 days 33.89 43%
S.Singh 10/10 698 days 29.98 38%
Simba 9/10 698 days 29.98 38%
Jim 9/10 698 days 29.98 38%
Kathy 10/10 698 days 29.98 38%
StevieB 10/10 729 days 26.23 33%
Kirstie & Aaron 10/10 729 days 26.23 33%
Pieri 10/10 729 days 26.23 33%
Nick 10/10 729 days 26.23 33%
Rhiannon 9/10 729 days 26.23 33%
kinjalkumar 10/10 757 days 23.1 29%
Dave Watson 10/10 757 days 23.1 29%
Kishore Lal 10/10 848 days 14.67 19%
Kevin West 10/10 879 days 12.39 16%
Jacky McLaren 9/10 909 days 10.48 13%
Jason Smith 10/10 909 days 10.48 13%
Tine 10/10 1001 days 6.4 8%
Chris Skeen 10/10 1032 days 5.63 7%
Kathryn Algar 9/10 1093 days 5.0 6%
Dean Godfrey 10/10 1093 days 5.0 6%
Ehds Reyes 9/10 1121 days 4.95 6%
Martin White 9/10 1152 days 4.89 6%
Niyaz Noor 1/10 1152 days 3.57 5%
Alison Stewart 6/10 1152 days 4.06 5%
Graeme Worsley 10/10 1152 days 4.89 6%
Jun c 10/10 1183 days 4.83 6%
Franceska Banga 1/10 1427 days 3.18 4%
mathew sullivan 1/10 1914 days 2.48 3%
Sue Cockrell 10/10 2249 days 2.74 3%
Sachin 1/10 2555 days 1.56 2%
Danlin Yang 8/10 4008 days true 0.0 0%
Doll 5/10 4056 days true 0.0 0%
Anne Mainwaring 8/10 4404 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 Bargain Rental Cars experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-4.36% Adjustment

Recent reviews reflect the experience as it currently operates. This means it's important to get fresh reviews. Some experiences discovered they could get a few good reviews and then, resting on their laurels, discourage any further reviews. This adjustment stimulates experiences to be positively involved in the review generating process and discourages them from manipulating the ranking system in this manner. There may be an adjustment if an experience hasn't received any reviews within the last 60 days.

The Bargain Rental Cars experience has 0 recent rankings. Adjustments are according to the following table:

Recent Reviews Adjustment
0 -3.00%
1 -2.83%
2 -2.33%
3 -1.50%
4 -0.67%
5 -0.17%
6 -0.00%

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 199 days.

The Bargain Rental Cars experience has been adjusted for 68 days. Adjustments are according to the following table.

Days Adjustment
65 -1.30%
66 -1.32%
67 -1.34%
68 -1.36%
69 -1.38%
70 -1.40%
71 -1.42%

Final Ranking Score

63%

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.