Exam 2: Psychologys Scientific Method

_____ characteristics are any aspects of an experimental research study that communicate to participants how the experimenter wants them to behave.

In terms of statistical significance,what is considered to be the minimum level of probability that scientists will accept for concluding that observed differences are real and not due to chance?

Explain the concepts of experimental groups and control groups with examples.

List four drawbacks of doing research in a laboratory.

A(n)_____ allows researchers to distinguish the specific effects of the independent variable from the possible effects of the experimenter's and participants' expectations about it.

Bradley conducts research to validate his hypothesis that increased job satisfaction leads to greater organizational commitment among employees.He collates the existing data from all of the studies that he can locate on the topic.By looking at the data,he establishes that his hypothesis has been consistently proven correct across the studies.In this scenario,the method of study used by Bradley is

Double-blind experiments are conducted in an effort to rule out experimenter bias as well as research participant bias.

Dr.Kate proposes that students find it difficult to return to their academic schedules after spring break.Specifically,she predicts that every year there will be more student absences on the Monday following spring break than on the Friday before spring break.The first statement describes the _____,while the second is the _____.

Leslie hypothesizes that teenagers who read magazines develop low self-esteem because of the unrealistic expectations set by the actors and models in the magazines.To study this,she designs a questionnaire to assess confidence levels.Two groups take this questionnaire-one that reads a magazine before taking the questionnaire and one that does not.The group that reads the magazine is the

Which of the following statements is true of statistical significance?

Haley reads in a magazine that people who drink five cups of coffee a day are smarter and more productive than people who do not drink coffee.She does not drink coffee but is now considering drinking coffee every day.Which of the following information does she need to consider before making this decision?

In an experimental study,a(n)_____ is a manipulated experimental factor that the experimenter changes to see what its effects are.

In a psychological experiment,the experimental group is exposed to the change that the independent variable represents.

Noelle,a psychologist,conducts a study to establish whether caffeine increases the ability to run.She has two groups of participants run on a treadmill for 15 minutes.One group drinks regular coffee before running,while the other group drinks decaffeinated coffee before running.The group that drinks decaffeinated coffee is the

When using inferential statistics in psychological research studies,the researcher learns

Mila,a school principal,wants to know her students' opinions about the food served in the school's cafeteria.To obtain her students' opinions,she devises a set of questions that she asks all her students to answer.In this case,Mila is using a _____ to obtain the opinions of her students.

_____ is a type of psychological research that uses surveys,case studies,and interviews to find out the basic dimensions of some variable.

Aaron wants to study people's reaction to violent images.He lets all the participants of his experiment know that they will be subjected to violent images and asks if they are willing to participate.In this scenario,Aaron is

Which of the following statements is true of quasi-experimental designs?

In the context of experimental research,internal validity refers to the