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Table 5 Correlation coefficients for total scores and subscale scores for the OPES, PRCA, and SPCC

From: Development and validation of the oral presentation evaluation scale (OPES) for nursing students

Instruments & subscales 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1. OPES                 
2. Accuracy of content .82                
3. Effective Communication .89 .62               
4. Clarity of speech .87 .58 .64              
5. PRCA −.51 −.38 −.53 −.39             
6. Group discussion −.35 −.30 −.36 −.25 .73            
7. Meetings −.46 −.33 −.48 −.35 .90 .57           
8. Interpersonal −.41 −.30 −.42 −.32 .86 .54 .69          
9. Public Speaking −.48 −.32 −.51 −.39 .84 .40 .71 .64         
10. SPCC .45 .35 .46 .34 −.55 −.35 −.46 −.53 −.50        
11. Public .48 .37 .49 .36 −.57 −.35 −.50 −.49 −.55 .92       
12. Meeting .41 .30 .44 .30 −.53 −.33 −.45 −.52 −.48 .95 .84      
13. Group .41 .33 .40 .32 −.49 −.33 −.40 −.48 −.43 .94 .83 .86     
14. Dyad .40 .33 .40 .29 −.48 −.29 −.38 −.50 −.42 .94 .79 .87 .88    
15. Stranger .40 .30 .44 .27 −.52 −.26 −.44 −.53 −.49 .93 .83 .89 .87 .90   
16. Acquaintance .42 .30 .43 .32 −.51 −.32 −.41 −.49 −.46 .94 .88 .90 .89 .87 .82  
17. Friend .41 .37 .37 .34 −.47 −.39 −.39 −.40 −.39 .82 .79 .77 .79 .75 .61 .73
  1. OPES Oral Presentation Evaluation Scale, PRCA Personal Report of Communication Apprehension, SPCC Self-Perceived Communication Competence
  2. Bold figures all p < .001.