Research Methods: Hypotheses Flashcards
There are 3 types of hypothesis. Directional, Non directional and ….
Null
There are 3 types of hypothesis. Non directional, Null and ….
Directional
There are 3 types of hypothesis. Directional, Null and ….
Non Directional
Another name for a directional hypothesis is….
One tailed
Another name for a non -directional hypothesis is….
A two-tailed
Which type of Hypothesis will you never be asked to write in an exam
Null
What is a directional hypothesis?
States what the difference is between conditions (so does include language like -more, less, higher, lower, faster, slower etc)
What is a non-directional hypothesis?
States there will be a difference but doesnt say what the difference will be (so doesnt have words like higher lower more less etc)
What is a null hyopthesis
There will be NO significant difference between the conditions
What is meant by a hypothesis?
A specific and testable statement where the researcher predicts what is going to happen
Pick out the word that makes this hypothesis a directional.
‘Participants who drink a 75cl can of Red Bull will have significantly faster reactions times (seconds) on a hazard perception test than participants who drink 75cl of water.
faster
Name the type of hypothesis
There will be significantly higher scores on a happiness questionnaire from participants who eat a 75g bar of dairy milk in comparison to participants who eat a plain rice cake.
Directional
When would you write a directional hypothesis?
When previous research has shown the direction that the results will go in
When would you decide to write a non-directional hypothesis?
When there is no previous research
When its a new area of research
When previous research’s results have been mixed
How do you start a directional hypothesis?
There will be a higher/lower/more/less/ etc
How do you start a non directional hypothesis?
There will be a significant difference
What needs to be included in any hypothesis?
Operationalised DV and BOTH SIDES of the operationalised IV
Name the hypothesis
There will be a significantly faster reaction time (seconds) on a hazard perception test when participants drink 75cl of Red Bull compared to participants who drink 75cl of water.
directional
Name the hypothesis
There will be a significant difference in reaction times (seconds) on a hazard perception test between participants who drink 75cl of Red Bull and participants who drink 75cl of water.
Non directional
Name the hypothesis
There will be no significant difference in reaction times (seconds) on a hazard perception test between participants who drink 75cl of Red Bull and participants who drink 75cl of water.
Null
Name the hypothesis
There will be a significant difference between the scores on a maths test between those who slept for 8 hours and those ppts who slept for 2 hours
non direcational
If you write the wrong type of hypothesis how many marks would you get?
0
What needs to be included to get 3/3 in a hyopthesis?
The right direction
The operationalised IV
The operationalised DV
There has been previous research that has shown that fanta improved running performance on a 100m sprint
What type of hypothesis would you write?
directional
What type of hypothesis should you choose to write for the following…
There is previous research that was done that showed that there was no significant difference in results of those ppts who ate a kitkat before a 100m sprint and those who did not eat a kitkat before running the 100m sprint
A non directional
(because although there is previous research it doesnt state a direction - it shows no real results)
Write a directional hypothesis for the following info
Redbull & No Redbull on 100m sprint in seconds
There will be quicker running times in seconds on those ppts who drank red bull compared to those ppts who did not drink red bull.
Write a nondirectional hypothesis for the following
Redbull & No Redbull on 100m sprint in seconds
There will be a significant difference in running speed in seconds between those ppts that drink red bull compared to those ppts who do not drink red bull
