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Table 4 Results of Inferential Statistical Tests

From: Dermatologists’ perceptions of suicidality in dermatological practice: a survey of prevalence estimates and attitudes in Austria

Hyp.

Test statistic

Effect size

Conclusion

  

Value

Magnitudea

 

H1a

J-T(3) = 72††

d = 2.09

very large

Private specialists have fewer clients than contract physicians.

H1b

J-T(3) = 538.5††

d = 3.02

very large

Private specialists on average spend more time with their patients than contract physicians do.

H1c

J-T(3) = 332

χ2(2) = 5.04

  

No difference between contract and private doctors in telling their patients that additional psychological treatments could be helpful.

H1d

J-T(3) = 363.5*

χ2(2) = 3.70

d = 0.55

medium

Private specialists ask their patients more often about their emotional state.

H2a

U = 210

  

No difference between male and female doctors in telling their patients that additional psychological treatments could be helpful.

H2b

U = 129.5††

d = 0.85

large

Female doctors ask patients more often about their emotional state.

H3a

χ2(3) = 6.34

J-T(4) = 323.5

  

Length of work experience does not have an influence on how often doctors tell their patients that additional psychological treatments could be helpful.

H3b

χ2(3) = 4.67

J-T(4) = 312

  

Length of work experience does not have an influence on how often doctors ask patients about their emotional state.

H4a

U = 94.5

d = 0.78

large

Doctors with psychological background tell patients more often that additional psychological treatments could be helpful.

H4b

U = 122*

d = 0.53

medium

Doctors with psychological background ask patients more often about their emotional state.

  1. Note. Hyp. Hypotheses; J-T Jonckheere-Terpstra test statistic; χ2 = Kruskal-Wallis H test statistic; U = Mann-Whitney U test statistic; d = Cohen’s d effect size (computed with an effect-size calculator for nonparametric statistical tests, (available online [44])
  2. *p < 0.05 one-tailed; **p < 0.01 one-tailed; p < 0.05 two-tailed; ††p < 0.01 two-tailed
  3. aMagnitude interpretation [45]: “small” d ≈ 0.20; “medium” d ≈ 0.50; “large” d ≈ 0.80