Homework #13: Factorial BS ANOVA Part A. An experiment is conducted to investigate the hallucinatory effect of opium and marijuana smoking. The researcher examined two types of drugs; opium and marijuana. Participants either smoked a drug or did not smoke a drug. This resulted in a 2 (Opium: smoked, did not smoke) x 2 (Marijuana: smoked, did not smoke) between-subjects design, with 7 subjects in each condition. Amount of hallucinatory activity was measured such that a high number indicated considerable hallucination. Draw a contingency table for this design, using the conventions discussed in class. Use the A and B notation and specify which factor is A and which factor is B. Also include the Means and SDs of each of the four cells within the contingency table. A: Opium B: Marijuana Smoked opium & Smoked MJ M = SD = Did not smoke Opium & Smoked MJ M = SD = Smoked opium & did not smoke MJ M = SD = Did not smoke Opium & Did not smoke MJ M = SD = Answer the following questions: This study contained how many conditions? ___________ How many total participants were in this study? _________ Part B. Analyze the following data using a BS factorial ANOVA in SPSS. Turn in a hard copy of SPSS input and output along this hw, write-up, and graph. Smoked Opium Did not smoke Opium Smoked Marijuana Didn't smoke Marijuana Smoked Marijuana Didn't smoke Marijuana 7 5 6 3 7 5 5 2 7 4 5 2 6 4 4 1 6 3 4 1 5 3 4 0 4 3 3 0 Homework #13, cont’d Fill in the Main Effect Means and SD: Factor A: Opium Factor B: Marijuana All who smoked All who did not smoke All who smoked All who did not smoke M SD Fill in the Source Table: Source SS df MS F sig. A (Main effect of Opium) B (Main effect of Marijuana) AB (Interaction) Error

Homework #13: Factorial BS ANOVA Part A. An experiment is conducted to investigate the hallucinatory effect of opium and marijuana smoking. The researcher examined two types of drugs; opium and marijuana. Participants either smoked a drug or did not smoke a drug. This resulted in a 2 (Opium: smoked, did not smoke) x 2 (Marijuana: smoked, did not smoke) between-subjects design, with 7 subjects in each condition. Amount of hallucinatory activity was measured such that a high number indicated considerable hallucination. Draw a contingency table for this design, using the conventions discussed in class. Use the A and B notation and specify which factor is A and which factor is B. Also include the Means and SDs of each of the four cells within the contingency table. A: Opium B: Marijuana Smoked opium & Smoked MJ M = SD = Did not smoke Opium & Smoked MJ M = SD = Smoked opium & did not smoke MJ M = SD = Did not smoke Opium & Did not smoke MJ M = SD = Answer the following questions: This study contained how many conditions? ___ How many total participants were in this study? _ Part B. Analyze the following data using a BS factorial ANOVA in SPSS. Turn in a hard copy of SPSS input and output along this hw, write-up, and graph. Smoked Opium Did not smoke Opium Smoked Marijuana Didn't smoke Marijuana Smoked Marijuana Didn't smoke Marijuana 7 5 6 3 7 5 5 2 7 4 5 2 6 4 4 1 6 3 4 1 5 3 4 0 4 3 3 0 Homework #13, cont’d Fill in the Main Effect Means and SD: Factor A: Opium Factor B: Marijuana All who smoked All who did not smoke All who smoked All who did not smoke M SD Fill in the Source Table: Source SS df MS F sig. A (Main effect of Opium) B (Main effect of Marijuana) AB (Interaction) Error

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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Homework #13: Factorial BS ANOVA

Part A.

An experiment is conducted to investigate the hallucinatory effect of opium and marijuana smoking. The researcher examined two types of drugs; opium and marijuana. Participants either smoked a drug or did not smoke a drug. This resulted in a 2 (Opium: smoked, did not smoke) x 2 (Marijuana: smoked, did not smoke) between-subjects design, with 7 subjects in each condition. Amount of hallucinatory activity was measured such that a high number indicated considerable hallucination.

Draw a contingency table for this design, using the conventions discussed in class. Use the A and B notation and specify which factor is A and which factor is B. Also include the Means and SDs of each of the four cells within the contingency table.

A: Opium

B: Marijuana

Smoked opium & Smoked MJ

M =

SD =

Did not smoke Opium & Smoked MJ

M =

SD =

Smoked opium &

did not smoke MJ

M =

SD =

Did not smoke Opium & Did not smoke MJ

M =

SD =

Answer the following questions:
This study contained how many conditions? ___________
How many total participants were in this study? _________

Part B.

Analyze the following data using a BS factorial ANOVA in SPSS. Turn in a hard copy of SPSS input and output along this hw, write-up, and graph.

	Smoked Opium	Did not smoke Opium
	Smoked Marijuana	Didn't smoke Marijuana	Smoked Marijuana	Didn't smoke Marijuana
	7	5	6	3
	7	5	5	2
	7	4	5	2
	6	4	4	1
	6	3	4	1
	5	3	4	0
	4	3	3	0



Homework #13, cont’d Fill in the Main Effect Means and SD:
	Factor A: Opium	Factor B: Marijuana
	All who smoked	All who did not smoke	All who smoked	All who did not smoke
M
SD
Fill in the Source Table:
Source	SS	df	MS	F	sig.
A (Main effect of Opium)
B (Main effect of Marijuana)
AB (Interaction)
Error
Total

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