Which of the Following Is True of the Effectiveness of Picture

question 9

Multiple Choice

Which of the following is true of the effectiveness of Picture Exchange Communication System (PECS) ?

• A) It may be helpful for reducing challenging behaviors.
• B) It may be helpful for reducing stereotyped behaviors.
• C) It is most effective for older children and adolescents with ASD.
• D) It has not been shown to be more helpful than no communication training at all at reducing challenging or stereotyped behaviors.

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Definitions:

Large Sample

A statistical concept where the sample size is sufficiently large to approximate certain properties of the entire population under study.

ANOVA F Statistic

A statistic used in Analysis of Variance (ANOVA) tests to determine if there are significant differences between the means of three or more groups.

Significance Level

A threshold chosen by the researcher which the p-value must be below in order to reject the null hypothesis.

Explanatory Variables

Variables in a statistical model that are used to predict or explain changes in the dependent variable.