# Chapter 2: Research Methods

Flashcards by jtmckiver, updated more than 1 year ago
 Created by jtmckiver over 5 years ago
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vocabulary

## Resource summary

 Question Answer Ethical Principles for Animal Research Provide humane living conditions for animals. Standard Deviation shows how far scores vary from the average score.. 68-95-99.7 Rule 68% of all scores fall within one standard deviation of the average. Normal Distribution forms a bell-shaped or symmetrical curve. Mode the number occurring the "most" Median the "middle" score. Mean the average; sum. Operational Definitions; statement of your procedures. Dependent Variable depends on the independent variable. Random Assignment Assigning participants to experimental groups. Cross-Sectional study compares individuals at various ages. Longitudinal Study studies a single individual or a group over an extended time. Zero Correlation NO relationship between 2 variables. Negative Correlation 2 variables move in opposite directions. Positive COrrelation 2 variables move in the same direction. Correlation Coefficient indicates the strength and direction of the relationship between 2 variables. Correlation Studies measure a relationship between variables. Participant Bias tendency to respond in a certain way. Researcher Bias tendency for researchers to look for evidence that supports hypothesis. Surveys uses questionnaires or interviews. Reliability Consistency or Repeatability of results. Random Selection choosing of members of a population so that every individual has an equal chance of being chosen for a sample. Random Assignment an experiment into groups so that every individual has an equal chance of being put in any group. Population. all of the individuals in the group. Placebo Physical treatment given to the control group that resembles the treatment given to the experimental group. Normal DIstribution Represented by a normal curve Naturalistic Observations Observing and recording behavior naturally Inferential Statistics Statistics used to determine data and draw conclusions. Hypothesis prediction of how 2 or more factors were likely to be related. Experimental Group Group that you experiment on; Experiment ,method that can establish cause and effect between IV & DV Ethical Guidelines for Human Research Informed Consent Voluntary Participation Debriefing COnfidentiality. Descriptive Statistics Numbers that summarize a set of research data. Confounding Variables Factors that causes differences between the experimental group. Central Tendancy Describes average of a distribution. Case Studies one person is studied in depth , revealing universal principles.

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