Exam 4: Research Design Fundamentals

An experimenter had one group of participants eat ice cream that was packaged in a red carton,whereas another group of participants ate the same flavoured ice cream from a green carton.Participants then indicated how much they liked the ice cream by rating the taste on a 1-5 scale.The independent variable in this experiment was the

Ice cream sales increase when daily temperatures rise.This is an example of a ____ relationship.

Dr.George examines the relationship between students' distance to school and the amount of time they spend studying.If no relationship between the variables exists,then

Rats learning a maze are tested after varying degrees of food deprivation,to see if it affects the time it takes for them to complete the maze.Some rats are deprived of food for 4 hours before they run the maze,others for 8 hours,and others for 12 hours.In this study

Which one of the following is a situational variable?

Random assignment is a critical element of the experimental method because it

A laboratory experiment uses ________ while a field experiment does not.

A study examined the relationship between years spent smoking and attitudes toward quitting by asking participants to rate their optimism for the success of a treatment program.If there were a negative relationship between these variables,what should the results of the study be like?

A researcher measured how much violent television children watched at home.These children were also observed for their aggressiveness on the playground.The researcher found that as the amount of violence watched on TV increased,the amount of playground aggressiveness increased.The type of relationship found was

A researcher investigated the relationship between test length and grades in a Western Civilization course.After randomly assigning students to groups,she found that students who took longer exams received better grades than students who took shorter exams.The independent variable was

By employing randomization,the researcher ensures that

The non-experimental (correlational)method involves

An exercise physiologist examines the relationship between the number of sessions of weight training and the amount of weight a person loses in a month.If a curvilinear relationship exists,what should the results be like?

The process of clearly identifying how a variable is measured or manipulated is referred to as the _______ of the variable.

When a researcher manipulates temperature of a room in order to examine the effect it has on task performance,the different temperature conditions are referred to as the _____ of the variable.

A researcher found that as the amount of violence watched on TV increased,the amount of playground aggressiveness increased.Based on these findings,it can be said with certainty that

A psychological process that is responsible for the effect of an independent variable on a dependent variable is referred to as a(n)_____ variable.

Dr.King asks student teachers to assign a punishment for misbehavior displayed by an attractive versus unattractive child.The response variable would be

In graphing the results of an experiment,the independent variable is placed on the ________ axis and the dependent variable is placed on the ________ axis.

Which of the following is true of having to operationally define a variable.Operational definitions