Module Nine Quiz Aresearcher conducted an experiment on the effects of a new multivitamin onenergy level, with a control group (received nothing), a placebo group, and anexperimental group...

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Module Nine Quiz


A researcher conducted an experiment on the effects of a new multivitamin on energy level, with a control group (received nothing), a placebo group, and an experimental group (received the multivitamin). An energy inventory that provided a measure of energy level on a 50-point scale was used, where 50 indicated an individual who feels high levels of a lack of energy. The ANOVA summary table follows, together with the mean energy level score for each condition.


































Source



df



SS



MS



F



Between groups




1,202.313





Within groups




2118.00




------



Total




3,320.313



------



------



























Drug Condition



Mean



N



Control



36.26



15



Placebo



33.33



15



Multivitamin



24.13



15



a) Complete the ANOVA summary table.


b) Is fobt
significant at a = .05?


c) Perform post hoc comparisons if necessary.


d) What conclusions can be drawn from the F- ratio and the post hoc comparisons?


e) What is the effect size, and what does it mean?



Answered Same DayDec 23, 2021

Answer To: Module Nine Quiz Aresearcher conducted an experiment on the effects of a new multivitamin onenergy...

Robert answered on Dec 23 2021
116 Votes
A researcher conducted an experiment on the effects of a new multivitamin on energy level, with a control group (received nothing), a placebo group, and an experimental group (received the multivitamin). An energy inventory that provided a measure of energy level on a 50-point scale was used, where 50 indicated an individual who feels high levels of a lack of energy. The ANOVA summary table follows, together with the mean energy level score for each condition.
    Source
    df
    SS
    MS
    F
    Between groups
    
    1,202.313
    
    
    Within groups
    
    2118.00
    
    ------
    Total
    
    3,320.313
    ------
    ------
    Drug...
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