Another dot in the blogosphere?

Muddy pay and work hour numbers

Posted on: November 14, 2018

In “olds” made news, this report tells us what we already know: Singapore teachers are paid very well and they are overworked.

So instead of focusing on established fact, I concentrate on how the latest facts were established. In the process, I illustrate principles of Skepticism 101.

First, were the 200 teachers from each country representative of the teacher population?

A sample of 200 might be statistically sound, but there was no information about how the sampling was conducted. For example, were the numbers garnered from a convenience sampling of respondents, e.g., from a limited set of schools or a captive audience?

We’re all 200 beginning teachers or was there a proportionate mix? If there was a mix of teacher experience, how many beginning teachers were used to determine their average starting salaries?

Second, the starting salaries of beginning teachers in Singapore was very high. The amount was equivalent to what a local assistant professor might make a decade ago.

Even taking into account salaries that keep pace with the rising cost of living, there was no information on whether the sampled teachers here were mid-career switchers, hired by independent/private schools, and/or Masters or Ph.D. holders. All these teachers typically command higher starting salaries.

It was entirely clear if the salaries were relative or absolute. If they were relative, they would be scaled to the cost of living in each country. If the numbers were absolute, then you would have to make comparisons of salaries from different Jon’s within each country and not between teachers of different countries.

Third, the definition of work hours was not clear. Were these official or unofficial work hours? Was the average over term time or over the entire calendar year? What if some teachers reported office hours but not weekend marking?

Were the salaries and work hours compared against data that the Ministry of Education here might have? This was not the job of the producers of the report; this was something the newspaper could have done to add meaning and value.

I do not doubt that teachers here are well-paid and work-stressed. But as long as the processes (i.e., data sampling and analyses) were murky, I do not trust the product (the report). When a news article further simplified the report, this muddied the water even more.

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