Exam 4: Fundamental Research Issues

Identify a limitation of laboratory experiments.

An HR executive of a company studies the effect of size of project teams on the teams' performance.He found that team size was not associated with any particular change in performance.In the context of relationship between variables,what type of relationship exists between the size of project teams and their performance?

Experimental control is accomplished by:

A researcher interested in establishing that there is a causal relationship between variables is most interested in _____ validity.

The _____ definition of a variable is the set of procedures used to measure or manipulate it.

What is the difference between a dependent and an independent variable?

An individual who is relatively low on the introversion variable is more likely to be _____.

In a _____ method,relationships between variables are studied by making observations or measures of the variables of interest.

In the context of relationship between variables,increases in the values of one variable are accompanied by increases in the values of the second variable in a _____ relationship.

In the context of relationship between variables,when increases in the values of one variable are associated with both increases and decreases in the values of a second variable,what type of relationship is present between the variables?

In the context of validity,when examining a single study,we find internal validity to be generally in conflict with _____ validity.

Jim,a psychiatrist,is developing a method to study mood swings in individuals.He asks individuals to describe the frequency and intensity of mood swings and rates them on a scale of 1 to 10.He desires to develop treatment plan according to average outcomes of frequency and intensity of mood swings.In this context,Jim is trying to _____ the variable "mood swing."

A numerical index of the strength of relationship between variables is called a _____ coefficient.

In the context of study of relationships between variables,_____ method involves direct manipulation and control of variables.

In the context of relationship between variables,when the graph is simply a flat line,it shows that there is _____ between the two variables.

A psychologist had one group of participants eat ice cream that was packaged in a red carton,whereas another group of participants ate the same flavored ice cream packaged in a green carton.Participants then indicated how much they liked the ice cream on a 1-5 rating scale.The independent variable in this experiment is the _____.

A researcher finds that the more a song is played on the radio,the greater the liking for the song.However,she also finds that if the song is played too much,people start to dislike the song.In the context of relationship between variables,what type of relationship exists between the song and its likeness factor?

Participant variables are also called _____ variables.

Random variability exists because relationships between variables:

An advertising agency conducted a research to analyze the effects of advertising on consumer buying behavior.It was found that higher frequency of advertising resulted in more sales of the product being advertised.In this case,there is _____ relationship between the frequency of advertising and the sales of the product.