Question

To test the effects of cartoons on cognitive functioning, a researcher assigns 15 children to watch 30 minutes of Spongebob Squarepants, 15 children to watch 30 minutes Looney Tunes, and 15 more children to color for 30 minutes. The research then tests both children on the same cognitive functioning task."

		A) One sample chi-square
		B) Independent samples t test
		C) Paired samples t test
		D) One way ANOVA
		E) Repeated Measures ANOVA

Answer 1

Answer :

D. One way ANOVA

because, here three samples we drawn ( 15 children to watch 30 minutes of Spongebob Squarepants, 15 children to watch 30 minutes Looney Tunes, and 15 more children to color for 30 minutes. The research then tests both children on the same cognitive functioning task. ) so no One sample chi-square, no  Independent samples t test, no Paired samples t test,

no Repeated Measures ANOVA because All ANOVAs compare one or more mean scores with each other; they are tests for the difference in mean scores. The repeated measures ANOVA compares means across one or more variables that are based on repeated observations. A repeated measures ANOVA model can also include zero or more independent variables. here, no repeatations so we can not use repeted Measure ANOVA.

Here we can use, one way ANOVA, because,  one-way analysis of variance is a technique that can be used to compare means of two or more samples. also The one-way analysis of variance (ANOVA) is used to determine whether there are any statistically significant differences between the means of two or more independent (unrelated) groups (although you tend to only see it used when there are a minimum of three, rather than two groups).