How science works?

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  • Created by: aggy98
  • Created on: 17-09-14 13:38

1. There are three types of hypothesis. What type is the following: Girls will have a higher iq level than boys

  • This is a null hypothesis
  • This is a experimental hypothesis
  • This is a one tailed or directional hypothesis,
  • This is a two-tailed or non-directional hypothesis
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2. Woudl you record the following dat5a as qualitiative and quantitative? An observational study is conducted into levels of psychical agression seen in 3 year old boys and grls in nursery school

  • Qualitative as you would want details about just how aggressive the children have been.
  • You would use quanative as it would provide more scientific results.
  • quanative as you could easily record boys and girls different levels of aggression in a tally chart for example.
  • You would use both by recording the number of girls and boys showing high and low aggression levels and making notes on what you observe.

3. What is a strentgh of qualitative date and a weakness of quantative data>

  • Qualitative data can be broken down into quanatative data.
  • Quanatative date can be broken down into qualitative data
  • qualitative data provides less in depth reasons behind behaviopur rather than just providing the statistsics of the behavhiour.
  • Qualitative data is easier to replicate than quanative data.

4. There are two types of confounding variables: participant and situational. What type is the following: Tiredness?

  • Tiredness is neither of these as it is not a confouding variable as it is not kept the same.
  • Tiredness is a situational variable is it is affected by the enviroment around you.
  • Tiredness is a participant variable, as it is something to do with the individual taking part.
  • Tiredness is a participant variable as it is something that all participants show.

5. What is one strength of lab experiments and a weakness of field experiments

  • in a lab you have more control over situational variables so high levels of precision are achieved, where as precision levels are lower in a field experiment.
  • In a field you have little control over the situational variables so your results may be signifcantly affected and not be represenative due to this effect., where as in al ab this cant happen do to higher levels of control over SV's.
  • In afield experiment you have more control over situational variables so higher precision levels than a lab where you have less control.
  • In a lab you have less control over sitational variables those meaning you results are more representative than in a field where you have little control over sitational variables.


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