aaq need to know

A. Types of Research Methods

Experiment, Correlations, Case Studies, Naturalistic Observations, Meta analysis

Experiment

purposefully manipulate variables to determine a cause/effect

Vocab unique to experiments

Placebo effect. double-blind, single-blind, confound, independent variable, experimental group, control group, dependent variable

Naturalistic Observation

observe people in their natural settings; real world validity, NO cause and effect

Case Study

studies ONE person in great detail; lots of info, NO cause and effect

Meta-Analysis

combines multiple studies to increase sample size and examine effect sizes

B. Operational

How did they measure the abstract variables of the experiment? How was it translated into research?

C. Statistical Concepts

Mean, Median, and Mode; Statistical Significance, Skewness, Effect Size, Range, Standard Deviation, Percentile Rank, Correlational Coefficients

Statistical Significance

whether the results are due to chance or not, experimental manipulation cause the difference in means

Skewness

created by outliers; negative skew or positive skew

Effect Size

data has practical significance (bigger=better)

Percentile Rank

refers to the percentage of scores in a distribution that are lower than a given score.

Correlational Coeffiecients

measure that indicates the strength and direction of a relationship between two variables and summarizes how closely the pairs of numbers for these variables lie on a straight line.

D. Ethical Guidelines

Confidentiality

Informed Consent

Informed Assent

Debriefing

Deception

No harm

Confidentiality

names must be kept secret

Informed Consent

must agree to be part of study

Informed Assent

minors AND parents must agree

Debriefing

must be told the true purpose of the study (done after deception)

Deception

must be warranted (have a reason for it)

No harm

no physical/mental harm to participants

E. Generalizable?

Can it be applied to everyone? Look at the participants and method, etc.

F. Support

How does the evidence support/negate the hypothesis of the research?