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MATLAB: An Introduction with Applications

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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**Question:**
Working memory scores of those with anxiety are compared to working memory scores of those without anxiety. What is the appropriate experiment design for this scenario?

**Options:**
- Factorial design
- Between-participants design
- Correlational design
- Within-participants design

This question is aimed at understanding different experimental designs. The scenario involves comparing two independent groups — those with anxiety and those without — making the most suitable design a between-participants design. This design is appropriate when comparing different groups to assess the impact of an independent variable (in this case, the presence or absence of anxiety) on a dependent variable (working memory scores).

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Would a descriptive, correlational, independet and dependent variable, quasi-experimental or experiemental, quantitative research design be best for a research question regarding social skills training versus pharmacological treatment?
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Interaction a. What is an interaction between two factors? b. In general, when using two-way analysis of variance, if we find that there is an interaction effect, how does that affect the procedure? c. Shown below is an interaction graph constructed from the data in Exercise 1. What does the graph suggest?
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Fill in blank questions and proof the answer and explain with
What is the power of a study using a correlation, with a one-tailed test at the .05 significance level, in which the researchers predict a large effect size and there are 50 participants? How many participants do you need for 80% power in a planned study in which you predict a small effect size and will be using a correlation, one-tailed, at the .05 significance level?

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