A teacher wanted to see if social anxiety affects performance on an oral assignment. To examine this, students completed social anxiety scales and were classified into "Low," "Average," and "High" levels of social anxiety. The data presented in the table below are the oral presentation grades (in percentages) earned by the 45 students separated by their social anxiety classification. Conduct the most appropriate statistical analysis to determine whether grades on the oral assignment differed based on level of social anxiety. (Hint: see module 1 presentations)

Oral presentation grade (%)
Low social anxiety	Average social anxiety	High social anxiety
72	80	77
68	85	71
73	73	73
75	81	69
97	73	90
73	91	74
95	73	76
88	73	67
89	71	81
97	75	75
88	78	68
89	90	79
93	89	58
89	88	83
79	75	81

1. Paste appropriate SPSS output. (3 pts)

ANSWER

1. Paste appropriate SPSS graph, formatted in APA (2 pts). Write an appropriate figure number and title using APA conventions (e.g., alignment, spacing, font size, use of bold / italics). 2 pts for graph; 2 pts for caption = 4 pts total.

ANSWER

1. Write an APA-style Results section based on your analysis. All homework "Results sections" should follow the examples provided in the presentations and textbooks for that particular statistical test. Don't forget to include a decision about the null hypothesis. Include a callout to Figure 1. (4 pts).

ANSWER

1. Identify a potential confounding variable with the study as it was presented (you can use your imagination!). Justify why you think it may be a confounding rather than an extraneous variable. (2 pts)

ANSWER