Skill Terms Flashcards

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1
Q

Experimental methodologies

A

involves the use of independent variable(s) and random assignment to groups

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2
Q

Non-experimental methodologies

A

includes case study, correlation, meta-analysis, and naturalistic observations

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3
Q

case study

A

a non-experimental technique in which one individual or group is studied in depth in the hope of revealing universal principles

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4
Q

correlation

A

a measure of the extent to which two factors vary together, and thus of how well either factor predicts the other

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5
Q

meta-analysis

A

a statistical procedure for analyzing the results of multiple studies to reach an overall conclusion

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6
Q

naturalistic observation

A

a non-experimental technique of observing and recording behavior in naturally occurring situations without trying to manipulate and control the situation

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7
Q

hypothesis

A

a testable prediction, often implied by a theory

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8
Q

operational definitions

A

a carefully worded statement of the exact procedures used in a research study

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9
Q

replication

A

repeating the essence of a research study, usually with different participants in different situations, to see whether the basic finding can be reproduced

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10
Q

independent variable(s)

A

in an experiment, the factor that is manipulated; the variable that is being studied

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11
Q

dependent variable(s)

A

in an experiment, the outcome that is measured; the variable that may change when the independent variable is manipulated

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12
Q

confounding variable(s)

A

in an experiment, a factor other than the factor being studied that might influence a study’s results

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13
Q

sample

A

a subset of a population of interest that is selected for study with the aim of making inferences to the population. It is important to ensure that a sample is representative of the larger population

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14
Q

population

A

all those in a group being studied, from which samples may be drawn

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15
Q

representative sample

A

the selection of study units (e.g., participants, homes, schools) from a larger group (population) in an unbiased way, such that the sample obtained accurately reflects the total population

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16
Q

random sampling

A

a sample that fairly represents a population because each member has an equal chance of inclusion

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17
Q

convenience sampling

A

any process for selecting a sample of individuals or cases that is neither random nor systematic but rather is governed by chance or ready availability

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18
Q

sampling bias

A

a flawed sampling process that produces an unrepresentative sample

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19
Q

generalization

A

the process of deriving a concept, judgment, principle, or theory from a limited number of specific cases and applying it more widely, often to an entire class of objects, events, or people

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20
Q

experimental group

A

in an experiment, the group exposed to the treatment, that is, to one version of the independent variable

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21
Q

control group

A

in an experiment, the group not exposed to the treatment, contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment

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22
Q

placebo

A

results caused by expectations alone

23
Q

single blind procedure

A

an experimental procedure in which the research participants are ignorant about whether they have received the treatment or a placebo

24
Q

double blind procedures

A

an experimental procedure in which both the research participants and the research staff are ignorant about whether the research participants have received the treatment or a placebo

25
Q

confounding variables

A

in an experiment, a factor other than the factor being studied that might influence a study’s results

26
Q

qualitative measures

A

a research method that relies on in-depth, narrative data that are not translated into numbers

27
Q

quantitative measures

A

a research method that relies on quantifiable, numerical data

28
Q

peer review

A

the evaluation of scientific or academic work, such as research or articles submitted to journals for publication, by other qualified professionals practicing in the same field

29
Q

variables

A

anything that can vary and is feasible and ethical to measure

30
Q

correlational study

A

a measure of the extent to which two factors vary together, and thus of how well either factor predicts the other

31
Q

survey

A

a non experimental technique for obtaining the self reported attitudes or behaviors of a particular group usually by questioning a representative, random sample of the group

32
Q

self report bias

A

bias when people report their behavior inaccurately

33
Q

social desirability bias

A

bias from people’s responding in ways they presume a researcher expects or wishes

34
Q

ethical procedures

A

Informed consent, confidentiality, right to withdraw, no deception or if used must be debriefed, protection from harm or discomfort

35
Q

institutional review boards

A

a committee named by an agency or institution to review research proposals originating within that agency for ethical acceptability and compliance with the organization’s codes of conduct. IRBs help protect research participants and are mandatory at any U.S. institution receiving federal funds for research.

36
Q

informed consent

A

giving potential participants enough information about a study to enable them to choose whether they wish to participate

37
Q

protect participants from harm

A

ensures the safety and well-being of people involved in psychological research or interventions

38
Q

confidentiality

A

protection is given to research participants and survey respondents against unauthorized access to information they reveal in confidence

39
Q

deception

A

any distortion of or withholding of fact with the purpose of misleading others

40
Q

confederates

A

in an experimental situation, an aide of the experimenter who poses as a participant but whose behavior is rehearsed prior to the experiment

41
Q

debriefing

A

the postexperimental explanation of a study, including its purpose and any deceptions, to its participants

42
Q

measures of central tendency

A

a summary measure that attempts to describe a whole set of data with a single value that represents the middle or centre of its distribution

43
Q

variation

A

the degree of variance or dispersion of values that is obtained for a specific variable

44
Q

mean

A

the arithmetic average of a distribution, obtained by adding the scores and then dividing by the number of scores

45
Q

median

A

the middle score in a distribution; half the scores are above it and half are below it

46
Q

mode

A

the most frequently occurring score(s) in a distribution

47
Q

range

A

the difference between the highest and lowest scores in a distribution

48
Q

standard deviation

A

a computed measure of how much scores vary around the mean score

49
Q

normal curve

A

a symmetrical, bell shaped curve that describes the distribution of many types of data; most scores fall near the mean and fewer and fewer scores lie near the extremes

50
Q

skewness

A

a representation of scores that lack symmetry around their average value

51
Q

regression toward the mean

A

the tendency for extreme or unusual scores or events to fall back toward the average

52
Q

scatterplot

A

A graphed cluster of dots, each of which represents the values of two variables. The slope suggests the direction of the relationship between the two variables. The amount of scatter suggests the strength of the correlation

53
Q

correlation coefficient

A

a statistical index of the relationship between two things

54
Q

statistical significance

A

a statistical statement of how likely it is that a result occurred by chance, assuming there is no difference between the populations being studied