is not exposed to the independent variable

In an experiment investigating the effect of caffeine on plant growth over 3 weeks the DV is

The amount in cm a plant has grown over 3 weeks.

An experiment focusing on the effect caffeine intake has on reaction time. The IV would be...

Whether participants had Caffeine or not

Volunteers in a memory test first sat a pretest and allocated a like partner prior to study

This is part of matched participant group design procedure

Which is a disadvantage of matched participant design

If one participant drops out the match needs to be excluded

Participants in a study were paid $90 and were knowingly electrocuted. Ethical issues?

voluntary participation and Protection from harm

A sample differs from the population as it

Is the actual participants utilised in the experiment

An extraneous variable is

an unwanted variable which could cause changes to the DV

A convenience sample can be describe as

a sample made up of willing, available participants

In an experiment investigating the effect caffeine has on heart rate fitbit reading. The DV is

The change in heart rate as measured by the fitbit.

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Psychology Research methods

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Unit 1 & 2 Psychology Research Methods.

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Questions 15

Answers

1
What are the key elements that should be included in a hypothesis
Population, IV, Prediction, DV
Sample, IV, DV, Prediction
expected outcome
Aim and a prediction
2
When a group of participants are involved in the control and experimental condition this is
repeated measure design
independent groups design
matched participants design
a single blind study
3
The control group
is not exposed to the independent variable
Is not really useful
Is exposed to the independent variable
measures the dependent variable
4
In an experiment investigating the effect of caffeine on plant growth over 3 weeks the DV is
How straight the plant grows
Whether the plant survives or not
The amount in cm a plant has grown over 3 weeks.
The amount of coffee given to the plant over 3 weeks
5
A study which measure its results by collecting Quantitative data means it
collects numerical data
collects descriptive information
6
An experiment focusing on the effect caffeine intake has on reaction time. The IV would be...
The effect of the caffeine
The score achieved on a reaction time test
Whether participants had Caffeine or not
The amount of caffeine ingested.
7
Volunteers in a memory test first sat a pretest and allocated a like partner prior to study
This is an example of independent group design procedure
This is an example of repeated measures
This is an example of random allocation
This is part of matched participant group design procedure
8
Which is a disadvantage of matched participant design
Individual differences
non standardised procedures
If one participant drops out the match needs to be excluded
order effects
9
Participants in a study were paid $90 and were knowingly electrocuted. Ethical issues?
confidentiality and withdrawal rights
voluntary participation and Protection from harm
no ethical concerns
voluntary participation and withdrawal rights
10
When participants are unaware if they are in the control or experimental group this is a ..
random allocation
single blind study
convenience sampling
double blind study
11
A sample differs from the population as it
is where the population is drawn from
Is the actual participants utilised in the experiment
is anyone who potentially could be part of the experiment.
It doesn't
12
Participants who think they are taking a caffeine tablet but it actually contains no caffeine..
is a double blind study
Is a sample
is a mistake
is an a example of a placebo
13
An extraneous variable is
is what happens if ethics are breached
an unwanted IV which renders the experiment useless
the use of deception
an unwanted variable which could cause changes to the DV
14
A convenience sample can be describe as
a sample made up of willing, available participants
a sample which has been randomly drawn from a population
a sample drawn from a target population
a sample of women
15
In an experiment investigating the effect caffeine has on heart rate fitbit reading. The DV is
How many cups of caffeine were ingested
How energetic the participant feels on a self report scale.
Whether Caffeine was ingested or not
The change in heart rate as measured by the fitbit.

Psychology Research methods Flashcards | StudBud