Presentation is loading. Please wait.

Presentation is loading. Please wait.

psychological methods

Similar presentations

Presentation on theme: "psychological methods"— Presentation transcript:

1 psychological methods
- Chapter 2 Section 1 Conducting Research-

2 Steps of Scientific Research
Form a Question Form a Hypothesis Test the Hypothesis Analyze Results of Test Draw a Conclusion Hypothesis: an educated guess

3 Replicated The study must be repeated Repeated …..etc

4 Surveys, Samples, & Populations

5 The Survey Method section 2

6 Surveys Asked to respond to a series of questions about a particular subject The finding are not always accurate.

7 I will tell you what you want to hear
Not because of the surveys because of the information people give. Some fear that their info wont be kept confidential.

8 Fun with Surveys

9 Target population

10 Target population The whole group you want to study or describe.
Too many in the target population Study a sample- only a part of the target population


12 Individuals are selected by chance from the target population
Random sample Individuals are selected by chance from the target population

13 Subgroups in the population are represented proportionally
Stratified Sample Subgroups in the population are represented proportionally

14 Volunteer bias People who volunteer to participate in research often because they have more free time or an personal interest in the study.

15 about a biased survey

16 Methods of Observation section 3

17 The test methods IQ tests Personality tests Aptitude tests

18 An in depth investigation of an individual or a small group


20 Cross method Instead of following a set of individual over a number of years, researcher select a sample that includes people of different ages

21 Naturalistic observation
Whether on groomed trails or following a troop through the underbrush, careful record keeping is essential to naturalistic observation.

22 Observe behavior in laboratory- controlled environment

23 Analyzing Observations
Correlation A measure of how closely one thing is related to another Two types of correlation Positive negative

24 Education / Salaries Positive correlation
One goes up so does the other

25 Stress / Health Negative correlation
When one goes up the other goes down

26 Experimental Method section 4

27 Experimental Method Answers questions about cause and effect

28 Variables- factors that can vary or change
Independent- factors that researchers manipulate Dependent- depends on the independent variable.

29 Experimental groups receive the treatment Control group does not
Experimental groups receive the treatment Control group does not . Every effort is made so all other conditions are held constant

30 Placebo- a substance or treatment that has no effect apart from a person’s belief in it.

31 Single blind studies Participants are unaware of the treatment they are taking

32 Double blind study- both participant and experimenters are unaware who has obtained the treatment

33 Ethical Issues section 5

34 Ethics Are standards for proper and responsible behavior.

35 Confidentiality- the records about research participants are kept private.

36 Informed Consent Deception
People agree or consent to participate in a research study only after they are given a general overview of the research. At times participates are deceived. In testing a new drug the control group would be deceived by receiving the placebo.

37 Animal research

38 Is this Ethical? Stem cell research Selling of organs
Using animal for research Genetic engineering

Download ppt "psychological methods"

Similar presentations

Ads by Google