What does a bar chart show?

A bar chart compares separate categories or conditions, such as the mean score in each condition.

A bar chart shows a mean of 8 words recalled in a quiet condition and 5 words in a noisy condition. What does the chart suggest?

The chart suggests that noise reduces recall. Participants remembered 3 fewer words on average in the noisy condition.

What does a histogram show?

A histogram shows how often scores fall into each interval of continuous data, such as reaction times.

How does a histogram differ from a bar chart?

A histogram shows continuous data, so its bars touch. A bar chart shows separate categories, so its bars have gaps between them.

AQA GCSE Psychology 8182

Memory

Topic overview Processes and types of memory The multi-store model of memory Primacy, recency and Murdock's serial position curve Reconstructive memory, Bartlett and factors affecting accuracy

Perception

Topic overview Sensation, perception and depth cues Gibson's direct theory of perception Visual illusions Gregory's constructivist theory of perception Perceptual set and factors affecting perception

Development

Topic overview Early brain development, nature and nurture Piaget's stage theory of cognitive development Piaget in education, naughty teddy and policeman doll studies Dweck's mindset theory, learning styles and Willingham

Research Methods

Topic overview Hypotheses and variables Sampling methods Experimental designs and types of experiment Interviews, questionnaires, case studies and observations Research procedures, reliability and validity Ethical issues in psychological research Types of data, calculations and averages Correlation, graphs and the normal distribution

Social Influence

Topic overview Conformity and Asch's study Obedience, agency theory and the authoritarian personality Bystander intervention and Piliavin's subway study Crowd and collective behaviour

Language, Thought and Communication

Topic overview Language, thought and the Sapir-Whorf hypothesis Animal communication and von Frisch's bee study Non-verbal communication Explaining non-verbal behaviour: Darwin and Yuki

Brain and Neuropsychology

Topic overview The nervous system, fight or flight and the James-Lange theory Neurons, synaptic transmission and Hebb's theory Brain structure, localisation and Penfield's study Brain scanning, Tulving's gold memory study and brain damage

Psychological Problems

Topic overview An introduction to mental health Effects of mental health problems Clinical depression Explaining and treating depression Addiction Treating addiction

Research Methods

Correlation, graphs and the normal distribution

3 things to know
Paper 1

Overview

Frequency tables, bar charts, histograms and scatter diagrams, positive, negative and zero correlations, and the shape of a normal distribution.

What you need to know

Answer each one before you reveal it.

Your recallNot started

Key term

Describe the shape of a normal distribution.

Key term

What is a frequency table?

Key term

A frequency table shows that 4 participants scored 1, 6 scored 2 and 10 scored 3. What is the mean score?

Questions from this subtopic

Each one with the model answer underneath.

1
What is a frequency table?
Model answer
A frequency table shows how many times each score or category occurs in a set of data. Tallies are often used to count the scores.
2
A frequency table shows that 4 participants scored 1, 6 scored 2 and 10 scored 3. What is the mean score?
Model answer
The mean score is 2.3. The scores add up to 4 + 12 + 30 = 46, and 46 ÷ 20 participants = 2.3.
3
What does a bar chart show?
Model answer
A bar chart compares separate categories or conditions, such as the mean score in each condition.
4
A bar chart shows a mean of 8 words recalled in a quiet condition and 5 words in a noisy condition. What does the chart suggest?
Model answer
The chart suggests that noise reduces recall. Participants remembered 3 fewer words on average in the noisy condition.
5
What does a histogram show?
Model answer
A histogram shows how often scores fall into each interval of continuous data, such as reaction times.
6
How does a histogram differ from a bar chart?
Model answer
A histogram shows continuous data, so its bars touch. A bar chart shows separate categories, so its bars have gaps between them.

See the rest and revise

Other ways to work this

The same content, four other ways.

What is inside Levo

Six ways to work the same material.

1Closed book

2Open book

3Closed book

The 3-step method, run for you

Answer cold, learn it, then prove it stuck. Levo tracks the jump between your first attempt and your last.

Memory

Perception

Development

Research Methods

Cram a whole paper in one sitting

Sort every topic into what you know and what you do not, then drill only the weak ones.

A sample time and money.

saveswastescosts

Blank Blitz makes facts automatic

Rapid timed gap-fills on the terms and numbers you need to recall without thinking.

AHeart rate and breathing speed up and the pupils dilate.

BDigestion slows and sweating increases.

CThe muscles tense, ready for action.

Build It gets the exam shape right

Assemble a full-mark answer from its marking points, in the order an examiner wants them.

A mean score of 0.4682 is 0.47 to two significant figures.

TrueFalse

Test It catches misconceptions

Spot the fault in a statement. The traps are the mistakes students actually make.

721941163128510

Brain Breaks between sessions

Short focus games to reset attention, so the next set lands better than the last.

Every question in Research Methods, on a schedule.

Attempt a question from memory, write the correct version, then attempt it again. Levo records the jump between your first attempt and your last, and brings each question back on the day you are due to forget it.

Start revising, £5 a month See how the method works

Or £46 a year, about £3.83 a month. Cancel anytime.