Health Research. What is the placebo effect? An expectation of an effect gives that effect.

Slides:

Advertisements

Similar presentations

Experimental design ITS class December 2, 2004 ITS class December 2, 2004.

Advertisements

Psychological Methods

 Try to determine causes and risk factors for disease by drawing connections between behaviors or exposures and diseases through observation alone.

Basic Research Methods CSE EST ISE 323 Spring 2012 Tony Scarlatos.

The Ways and Means of Psychology STUFF YOU SHOULD ALREADY KNOW BY NOW IF YOU PLAN TO GRADUATE.

OBJECTIVE 6: STUDENTS WILL DEMONSTRATE UNDERSTANDING BY EXPLAINING EXPERIMENTATION METHODS EXPERIMENTS.

1 Research Methods in Clinical Psychology Carolyn R. Fallahi, Ph. D.

Module 2 Psychology & Science.

Chapter 51 Experiments, Good and Bad. Chapter 52 Experimentation u An experiment is the process of subjecting experimental units to treatments and observing.

N The Experimental procedure involves manipulating something called the Explanatory Variable and seeing the effect on something called the Outcome Variable.

That’s Not True!!!! Research Methods in Psychology.

Research Design Interactive Presentation Interactive Presentation

 Be familiar with the types of research study designs  Be aware of the advantages, disadvantages, and uses of the various research design types  Recognize.

Please review this power point presentation after reading Chapter 1 in the text – you will have quiz questions that pertain to this material.

Research Methodology For IB Psychology Students. Empirical Investigation The collecting of objective information firsthand, by making careful measurements.

RESEARCH & STATISTICS. o What are the 3 types of psychological research? o Experimental o Descriptive o Correlational.

Final Study Guide Research Design. Experimental Research.

Research Study Design. Objective- To devise a study method that will clearly answer the study question with the least amount of time, energy, cost, and.

Copyright © 2007 by The McGraw-Hill Companies, Inc. All rights reserved. Chapter 3 The Research Endeavor.

Module 4 Notes Research Methods. Let’s Discuss! Why is Research Important?

The Scientific Method in Psychology.  Descriptive Studies: naturalistic observations; case studies. Individuals observed in their environment.  Correlational.

Research Strategies – Mod 2 Notes.  Research in psychology is necessary in order to create logical, scientific, informed conclusions about psychological.

LEARNING GOAL 1.2: DESIGN AN EFFECTIVE PSYCHOLOGICAL EXPERIMENT THAT ACCOUNTS FOR BIAS, RELIABILITY, AND VALIDITY Experimental Design.

Module 2 Research Strategies.

Research Methods In Psychology Mrs. Andrews. Psychology… The scientific study of behavior and mental processes.

Why is Research Important?. Basic Research Pure science or research Research for the sake of finding new information and expanding the knowledge base.

Study Design 6.2.

Research Methods Chapter 4 Abnormal Psychology. Researching Abnormal Behavior Scientific method Developing a hypothesis Research design.

Research Methods in Health Psychology Chapter 2. Science Science is not a thing in and of itself. It is a set of methods used to understand natural phenomena.

Research Methods. Naturalistic Observations Advantages Advantages Disadvantages Disadvantages.

1 Thinking Critically with Psychology. 2 Research methods 4 Survey 4 Case study –E.g. Stroke victim 4 Experimentation 4 Naturalistic Observation –Observing.

Chapter 1 Psychological Science Experimentation.  Experiment  an investigator manipulates one or more factors (independent variables) to observe their.

 Experimentation. Bell ringer  Do you think listening to music while you read interferes with reading comprehension? Explain.

EXPERIMENT VS. CORRELATIONAL STUDY. EXPERIMENT Researcher controls all conditions Experimental group – 1 or more groups of subjects Control group – controlled.

It gives reliable and systematic ways to answer psychological questions like: How do I analyze dreams? Why are boys so weird? Other sources of info like.

Research Strategies. Why is Research Important? Answer in complete sentences in your bell work spiral. Discuss the consequences of good or poor research.

I. Research Strategies Module 02. A. Research Methodology Method of asking questions then drawing logical supported conclusions Researchers need to be.

ﴀﴀ © 2008 The McGraw-Hill Companies, Inc. Chapter 2: Psychological Research.

Types of Research Studies. Observation Observation is the simplest scientific technique Participant and researcher bias can occur Naturalistic observation.

Module 2 Research Strategies. Scientific Method A method of learning about the world through the application of critical thinking and tools such as observation,

Psy 311: Methods1 GOALS OF DEVELOPMENTAL PSYCHOLOGY l Describe, explain, and optimize human development.

Goals – Psychological Methods – Students will: 1. Learn how the scientific method applies to psychology. 2. Spend time discussing experiment proposals.

Conducting Psychological Research The Dos and the Don’ts!

Clinical Psychology Spring 2015 Kyle Stephenson. Overview – Day 3 Why is research important? Types of Research ▫Observational ▫Epidemiology ▫Correlational.

Why is psychology a science? Scientific Method:  System of gathering data so that bias and error in measurement are reduced.

Measurement Experiment - effect of IV on DV. Independent Variable (2 or more levels) MANIPULATED a) situational - features in the environment b) task.

Module 2 Research Strategies. Scientific Method A method of learning about the world through the application of critical thinking and tools such as observation,

An EXPERIMENT allows researchers to control or manipulate the situation being studied THE EXPERIMENT.

From observation we can make generalizations about human nature

1 Research Methods in Child Psychopathology Carolyn R. Fallahi, Ph. D.

DESCRIPTIVE METHODS Methods that yield descriptions of behavior but not necessarily causal explanations.

How Psychologists Do Research Chapter 2. How Psychologists Do Research What makes psychological research scientific? Research Methods Descriptive studies.

Chapter 2: The Research Enterprise in Psychology.

Correlation and Experimentation

Journal Club Curriculum-Study designs. Objectives  Distinguish between the main types of research designs  Randomized control trials  Cohort studies.

Module 2 Psychology & Science. ANSWERING QUESTIONS Research methods –Survey –Case study –Experiment each method provides a different kind of information.

Health research Assist. Prof. Merve Topcu PSY 411 Health Psychology Department of Psychology Çankaya University , Fall 1.

Ch. 13 – Experiments and Observational Studies Part III – Gathering Data.

RESEARCH & STATISTICS.

Experimental and Control Groups

List three (3) differences between 9th and 12th graders.

Types of Research Designs

Observational Studies and Experiments

It is actually way more exciting than it sounds!!!!

Correlational Studies

Psychological Research Why do we have to learn this stuff?

Introduction to Psychology

Experimental Design.

EXPERIMENT VS. CORRELATIONAL STUDY

Experimental Design.

Presentation transcript:

Health Research

What is the placebo effect? An expectation of an effect gives that effect.

What can increase the placebo effect? Big pills - not little ones Colored pills - not white tablets Capsules - not tablets Two doses - not one Injection - not pill Surgery - not injection

Psychological treatments subject to the placebo effect. Counseling Hypnosis Biofeedback Relaxation training Massage Stress & pain management techniques

What can increase the placebo effect? Both patient and physician expectations

How effective is the placebo effect? It can potentially: Reduce insomnia Decrease low back pain Lower high blood pressure Decrease burn pain Relieve knee pain with sham (false) surgery

How can we separate the placebo effect from the real treatment effect? Double-blind design.

Research Methods: Correlation studies Cross-Sectional studies Longitudinal studies Experimental designs Observational designs

Correlation studies Show the degree of relationship between two factors Cannot indicate cause and effect

Cross-Sectional VS Longitudinal studies Cross-sectional studies Compare two or more separate groups Faster One point in time Longitudinal studies Compares one group over time Longer Follow participants over years

Experimental study Can determine “cause” At least two groups Experimental group Control group Variables Independent variable Dependent variable

Observational studies Does not manipulate variables Prospective Follow disease-free population for years to see what happens Retrospective Opposite approach Find population with disease and look backward “After the fact” Comparison group is not a control group No random assignment May differ on other factors

Observational studies Retrospective (Cont.) Two groups One with subject variable (e.g Overweight) One without subject variable (e.g Not overweight) Measure dependent variable (eg. Smoking) Looks for risk factors in a disease Factors increasing chance of the disease Demographic Behavioral

The “gold standard” of scientific research Randomized Placebo-controlled Double-blind Used for: Drug studies Effectiveness of psychological and educational interventions

Psychometrics (psychological tests) in research Reliability Consistent results Test-retest Inter-rater (Two or more raters = same results) Validity Measures what it is designed to measure Criterion validity Predictive validity