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A Psychologist Was Interested in Gauging the Success of a Mood

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A psychologist was interested in gauging the success of a mood manipulation during one of her experiments.She had three groups of participants who underwent different types of mood induction: disgust mood induction,negative mood induction and positive mood induction.After the mood induction,participants were asked to endorse nine statements relating to their mood (on a 5-point Likert scale from 1 = disagree to 5 = agree) : (1) When you're smiling the whole world smiles with you,(2) I love the pretty flowers,(3) I could never touch a dead body,(4) I would never eat catfood,(5) If someone served me monkey brain soup I would vomit,(6) I feel fed up,(7) Bodily fluids are nasty,(8) I could not drink from a glass that I'd used to catch a spider,(9) I am a worthless piece of scum.Part of the SPSS output is below.Which of the following statements best summarizes the output? A psychologist was interested in gauging the success of a mood manipulation during one of her experiments.She had three groups of participants who underwent different types of mood induction: disgust mood induction,negative mood induction and positive mood induction.After the mood induction,participants were asked to endorse nine statements relating to their mood (on a 5-point Likert scale from 1 = disagree to 5 = agree) : (1) When you're smiling the whole world smiles with you,(2) I love the pretty flowers,(3) I could never touch a dead body,(4) I would never eat catfood,(5) If someone served me monkey brain soup I would vomit,(6) I feel fed up,(7) Bodily fluids are nasty,(8) I could not drink from a glass that I'd used to catch a spider,(9) I am a worthless piece of scum.Part of the SPSS output is below.Which of the following statements best summarizes the output?   A) The type of mood induction had a significant effect on responses to all of the nine items. B) The type of mood induction had a significant effect on responses to at least one of the nine items. C) The type of mood induction had a significant effect on responses to more than half at least of the nine items. D) The type of mood induction that a person had could be significantly determined from a linear combination of responses to the nine items.


Definitions:

Y′

A symbol often representing a predicted value or derivative in mathematical equations or models.

Linear Regression

A statistical method for modeling the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.

Multiple Regression

A statistical technique that uses more than one independent variable to predict the outcome of a dependent variable, allowing for the analysis of complex relationships.

Perfect Correlation

Describes a relationship between two variables where all data points lie exactly on a line with either a positive or negative slope; correlation coefficient is either 1 or -1.

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