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BRT > Chapter 6 > Flashcards

Chapter 6 Flashcards

1
Q

What is experimental research?

A

Data collection method where one or more IVs are manipulated to measure the effect on the DV and where you control other causes.

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2
Q

What is an extraneous variable?

A

Every possible variable that can influence the DV other dan the IV.

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3
Q

What are the two main objectives of experimental studies?

A

To draw valid conclusions about the effects of IV on DV.

To make valid generalizations towards a broader population.

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4
Q

When do you need internal validity?

A

To draw valid conclusions.

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5
Q

When do you need external validity?

A

To make valid generalizations towards population.

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6
Q

What is confound?

A

A variable (Z) that threatens internal validity.

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7
Q

What prevents confounds?

A

Include extraneous and control variables in the design.

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8
Q

What is an history effect?

A

Events/factors outside the experiment that have an impact on the DV.

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9
Q

What is an maturation effect?

A

Biological changes over time.

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10
Q

What is an testing effect?

A

Prior testing affects the DV.

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11
Q

What is an instrumentation effect?

A

The observed effect is due to a change in measurement.

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12
Q

What is an statistical regression effect?

A

Extreme scores in the beggin are less extreme towards the end.

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13
Q

What is selection bias effect?

A

Incorrect selection of respondents.

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14
Q

What is mortality effect?

A

Drop out of respondents during experiment.

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15
Q

How can you increase internal validity within experiments?

A

Randomization,
Design control,
Statistical control.

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16
Q

What is randomization in internal validity?

A

Random allocation of participants to different conditions.

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17
Q

What is design control in internal validity?

A

Include control group,

Include extra goups.

18
Q

What is statistical control?

A

Measure extraneous variables and include these in the analysis.

19
Q

What is an lab experiment?

A

Artificial setting to have as much control as possible over the manipulations.

20
Q

What is an field exerpiment?

A

Natural environment where manilpulation is possible.

21
Q

What has an high internal validity?

A

Lab experiment.

22
Q

What has an high external validity?

A

Field experiment.

23
Q

Which four experimental designs are there?

A

Pre-experimental
True experimental
Quasi experimental
Statistical.

24
Q

What is EG?

A

Experimental group.

25
Q

What is CG?

A

Control group.

26
Q

What is Xi?

A

Exposure of group to treatment.

27
Q

What is Oi?

A

Observation.

28
Q

What is R?

A

Random allocation.

29
Q

For Reliability in survey’s you use?

A

Cronbach on multi-item

30
Q

What is an covariate?

A

Extranous variabl Z (variabel die invloed kan hebben op je Y)

31
Q

Which three pre-experimental designs are there?

A

One-shot case study
One-group pre/post-test
Static group

32
Q

Which three true experimental designs are there?

A

Pre/posttest Control Group
Posttest only Control Group
Solomon Four-Group

33
Q

Which two Quasi Experiments designs are there?

A

Time series

Multiple Time series

34
Q

Which three statistical experimental designs are there?

A

Randomized Blocks
Latin Square
Factorial

35
Q

Remark of One-Shot design?

A

No comparison possible.

36
Q

Remark of One-Group Pre/Posttest

A

No control voor extraneous variables.

37
Q

Remark of Static Group?

A

EG and CG can differ.

38
Q

Remark of Solomon Four-Group?

A

Takes retest effects into account.

39
Q

What is an Factorial Design?

A

Design with multiple IV

Tests for interaction/moderating effects.

40
Q

Experimental research is measuring the?

A

Effect of X on Y (Causal).

41
Q

Survey and Archival research are measuring?

A

Relationship between X on Y (Correlational).

BRT (15 decks)

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