Table 2.
Spearman correlation matrix regarding EMF-knowledge of GPs in Germany in 2008.
| Number of Correct Answers | Number of Incorrect Answers | Number of “Don’t Know” Answers | Self-Estimated Knowledge | Trust in Information from the WHO | Concern about EMF † | |
|---|---|---|---|---|---|---|
| Summary statistics: | ||||||
| Mean | 2.88 | 1.22 | 2.82 | 3.20 | 4.17 | 12.75 |
| Min; max | 0; 7 | 0; 5 | 0; 7 | 0; 6 | 0; 6 | 6; 24 |
| Correlation: | ||||||
| Number of correct answers | 1 | 0.03 | −0.86 * | 0.41 * | 0.02 | −0.08 |
| Number of incorrect answers | 1 | −0.48 * | 0.17 * | 0.02 | 0.15 * | |
| Number of “don’t know” answers | 1 | −0.46 * | 0.00 | −0.01 | ||
| Self-estimated knowledge | 1 | 0.05 | −0.01 | |||
| Trust in information from the WHO | 1 | −0.16 | ||||
| Concern about EMF | 1 |
† Cronbach’s alpha for the EMF concern score was 0.89; * p-value of the Spearman correlation coefficient was below 0.01.