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    help me
    can some one tell me what the critical value is for the spearmans rank corellation coefficient?

    mine is -0.617489177

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    (Original post by xshopoholicx)
    help me
    can some one tell me what the critical value is for the spearmans rank corellation coefficient?

    mine is -1.68398268

    first reply gets reps
    because your value is negative it would mean that there is negative correlation between the two variables that you are testing
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    (Original post by xshopoholicx)
    help me
    can some one tell me what the critical value is for the spearmans rank corellation coefficient?

    mine is -1.68398268

    first reply gets reps
    It depends on how many readings you have for a start, it also depends on how accurate you want to be... for A level biology 95% accuracy is usually fine which translates to 0.05 on the tables. Essentially more readings mean a lower score is needed to be significant.

    Also spearman's rank values are usually between a range of 1 and -1, you sure you didn't do the test wrong?

    Anyhow heres the table for 5%, value on the left being number of results and value on the right being the value needed for spearman's rank to be significant:

    5 1.00
    6 0.94
    7 0.89
    8 0.83
    9 0.78
    10 0.75
    11 0.73
    12 0.71
    13 0.67
    14 0.64
    15 0.62
    16 0.60
    17 0.58
    18 0.56
    19 0.55
    20 0.53
    21 0.52
    22 0.51
    23 0.50
    24 0.48
    25 0.47
    26 0.46
    27 0.46
    28 0.45
    29 0.44
    30 0.43

    If the number is negative still use the table but remember it is a negative correlation and not a positive one.
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    (Original post by Wallam)
    It depends on how many readings you have for a start, it also depends on how accurate you want to be... for A level biology 95% accuracy is usually fine which translates to 0.05 on the tables. Essentially more readings mean a lower score is needed to be significant.

    Also spearman's rank values are usually between a range of 1 and -1, you sure you didn't do the test wrong?

    Anyhow heres the table for 5%, value on the left being number of results and value on the right being the value needed for spearman's rank to be significant:

    5 1.00
    6 0.94
    7 0.89
    8 0.83
    9 0.78
    10 0.75
    11 0.73
    12 0.71
    13 0.67
    14 0.64
    15 0.62
    16 0.60
    17 0.58
    18 0.56
    19 0.55
    20 0.53
    21 0.52
    22 0.51
    23 0.50
    24 0.48
    25 0.47
    26 0.46
    27 0.46
    28 0.45
    29 0.44
    30 0.43

    If the number is negative still use the table but remember it is a negative correlation and not a positive one.
    sorry the spearmans rank is -0.617489177 and i need it to be a 95% significance
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    (Original post by xshopoholicx)
    sorry the spearmans rank is -0.617489177 and i need it to be a 95% significance
    How many readings did you use?
 
 
 
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