Research Methods for the Behavioral Sciences
5th Edition
ISBN: 9780357231913
Author: Frederick J Gravetter; Lori-Ann B. Forzano
Publisher: Cengage Limited
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Textbook Question
Chapter 10.5, Problem 12LO
Explain how the terms quasi-independent variable and dependent variable are used in nonexperimental, quasi-experimental, and developmental research.
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What is the difference between a dependent variable and an independent variable in a research study? Provide an example of each variable in a psychological research study.
1. A change of a dependent variable is all due to a manipulation of intended independent variables . Explain, with an example, why this statement can be inaccurate . Explain why cause of a regression model can also fail to discover a causal relationship
To properly examine the effect of a categorical independent variable in a multiple linear regression model we use an
interaction term.
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Chapter 10 Solutions
Research Methods for the Behavioral Sciences
Ch. 10.1 - Define, compare, and contrast the experimental,...Ch. 10.2 - Define a nonequivalent group design and identify...Ch. 10.2 - Explain how individual differences threaten the...Ch. 10.2 - Describe the two nonexperimental nonequivalent...Ch. 10.2 - Explain how a simple modification of the...Ch. 10.3 - Define a pre-post design and identify examples of...Ch. 10.3 - Identify the threats to internal validity for...Ch. 10.3 - Describe the nonexpenmental pretest-posttest...Ch. 10.3 - Explain how replacing the single observation...Ch. 10.4 - Define cross-sectional and longitudinal designs,...
Ch. 10.5 - Identify the statistical techniques that are...Ch. 10.5 - Explain how the terms quasi-independent variable...Ch. 10 - In addition to the key words, you should also be...Ch. 10 - Why are studies that examine the effects of aging...Ch. 10 - Explain why we can be more confident about causal...Ch. 10 - Give an example of a situation (aside from gender)...Ch. 10 - In this chapter, we described a study in which...Ch. 10 - Mueller and Oppenheimer (2014) conducted a series...Ch. 10 - A researcher measures personality characteristics...Ch. 10 - A researcher wants to describe the effectiveness...Ch. 10 - Explain how the pretest helps minimize the threat...Ch. 10 - Describe the basic characteristics of a pre-post...Ch. 10 - To evaluate the effectiveness of a new television...Ch. 10 - Prob. 12ECh. 10 - A researcher wants to describe how fine motor...Ch. 10 - Identify the appropriate statistical test for each...Ch. 10 - The college offers all students an optional...Ch. 10 - All of us have a tendency to categorize people...Ch. 10 - Prob. 2EACh. 10 - Prob. 3EA
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- Explain five consequences of omitting a relevant variable(s) from a model.arrow_forwardExplain what a dummy variable is and how it is used in regression analysisarrow_forwardwhen a regression is used as a method of predicting dependent variables from one or more independent variables. How are the independent variables different from each other yet related to the dependent variable?arrow_forward
- Assume we have data demonstrating a strong linear link between the amount of fertilizer applied to certain plants and their yield. Which is the independent variable in this research question?arrow_forwardIs the dependent variable is always dependent to the independent variable(s) of the study? Why?arrow_forwardObservational data are generated by designed experiments and therefore the independent x variables can be set in advance before the value of y is observed. True or Falsearrow_forward
- Please answer EVERY question VERY Clearly!arrow_forwardidentify the independent variable, the dependant variable and the unit of analysis of the following statement Kentor, J. (2001). The long-term effects of globalization on income inequality, population growth, and economic development. Social Problems, 48, 4, 453-455.arrow_forwardIf my hypothesis assumes that religious women are more satisfied with life than men, would gender be my dependent variable? Religion and satisfaction with life are both independent? Is that correct?arrow_forward
- My previous classmate researched on the relationship between children’s nutrition and their cognitive development and found out that children have less energy and less interest for learning when under-nutrition. What is the independent, dependent and extraaneous variable?arrow_forward"Does the relationship between the independent variable and the dependent variable changeas a function of the sector in which an organization operates?" is a core question that we willask in this class. Which of the following variables is best suited to answer this question?a.Correlator variableb.Independent variablec.Moderator variabled.Dependent variablearrow_forwardTrue or false Interaction occurs when the relationship between an independent variable and a dependent variable is affected by another independent variablearrow_forward
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