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Validity, Reliability & Accuracy - PowerPoint PPT Presentation

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Validity, Reliability & Accuracy. Validity, Reliability & Accuracy.

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Validity reliability accuracy1
Validity, Reliability & Accuracy

  • SpongeBob loves to garden and wants to grow lots of pink flowers for his pal Sandy. He bought a special Flower Power fertilizer to see if it will help plants to produce more flowers. He plants two plants of the same size in separate containers with the same amount of potting soil. He places one plant in a sunny window and waters it every day with fertilized water. He places the other plant on a shelf in a closet and waters it with plain water every other day.

    • Explain what SpongeBob did wrong in this experiment. Make sure in your explanation you use validity, reliability or accuracy.

Tq hypothesis
TQ & Hypothesis

  • Gary is not the smartest snail in Bikini Bottom and believes he can improve his brain power by eating Super Snail Snacks. In order to test this hypothesis, he recruits SpongeBob and several snail friends to help him with his experiment. The snails ate one snack with each meal every day for three weeks. SpongeBob created a test and gave it to the snails before they started eating the snacks as well as after three weeks.

    • Write a testable question for the experiment – make sure you identify the Independent and dependent variables

    • Write a hypothesis for the experiment